Re: CSEC meter
That water at 000 PPM could be as high as 1.99 uS which isn't too bad. VERY good water would be around .2 uS, pretty good @ .8 uS and average @ around 1 or 2. [all 000 PPM] Usually usable up to around 5 uS Ode At 02:34 PM 10/29/2009 +, you wrote: my TDS meter reads 000 when put in my distilled water. dee On 29 Oct 2009, at 00:29, sol wrote: Ode Coyote wrote: A TDS, in effect reads in every OTHER digit of conductivity..not even whole numbers. That's something like 40% as good as a COM-100 Please clarify this for me. A TDS' smallest reading is 1.0? If that is right what you are saying is that the actual microsiemens reading of a TDS showing 1.0 is 2.0 microsiemens? Yes? No? thanks, sol -- -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
That's interesting. But Faraday doesn't account for waste [electrode deposits etc ] But then, a meter doesn't account for suspended particles. Ode At 12:16 PM 10/29/2009 -0500, you wrote: . Mine reads a straight one to one with the Faraday calcs, when I read the solution immediately. It took a while to get enough readings to be able to make that statement with confidence, but there it is. Kathryn -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
my CS is usually clear Ode, always as long as it is in the glass brewing jar. I've had some bottles go yellow but assume this is something to do with the actual bottles. I'm taking that as meaning that the water is good. It does take quite a long time to brew as well, especially in the winter. I am getting a home distiller soon, so hope it has as good results. dee On 30 Oct 2009, at 10:07, Ode Coyote wrote: That water at 000 PPM could be as high as 1.99 uS which isn't too bad. VERY good water would be around .2 uS, pretty good @ .8 uS and average @ around 1 or 2. [all 000 PPM] Usually usable up to around 5 uS Ode -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
Thanks..I think I even understand some of that, LOL. sol Ode Coyote wrote: A TDS meter takes +/- 2 uS of conductivity to read 1 PPM and does it in whole digits. That makes the resolution of an EC meter that only displays whole digits, about twice that of a TDS meter. Take out around +/-.9 % for not having decimal places and that's around 90% as good a resolution. Subtract that from 2 digit EC resolution and you get a TDS meter that's +/- 40% as good as an EC meter that has a decimal place. TDS meters sometimes have a nasty habit of skipping a digit while calibrating them too... it just won't display a 5 or a 7 as you twist the screw...jumping from 4 to 6, for example. That's, at LEAST, a 4 uS **possible** built in read error and could be as much as almost 8 uS with no way to tell which...depending on where on the scale you are and that particular meter. I've never seen an EC meter skip a digit. Ode -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
A TDS meter takes +/- 2 uS of conductivity to read 1 PPM and does it in whole digits. That makes the resolution of an EC meter that only displays whole digits, about twice that of a TDS meter. Take out around +/-.9 % for not having decimal places and that's around 90% as good a resolution. Subtract that from 2 digit EC resolution and you get a TDS meter that's +/- 40% as good as an EC meter that has a decimal place. TDS meters sometimes have a nasty habit of skipping a digit while calibrating them too... it just won't display a 5 or a 7 as you twist the screw...jumping from 4 to 6, for example. That's, at LEAST, a 4 uS **possible** built in read error and could be as much as almost 8 uS with no way to tell which...depending on where on the scale you are and that particular meter. I've never seen an EC meter skip a digit. Ode At 06:29 PM 10/28/2009 -0600, you wrote: Ode Coyote wrote: A TDS, in effect reads in every OTHER digit of conductivity..not even whole numbers. That's something like 40% as good as a COM-100 Please clarify this for me. A TDS' smallest reading is 1.0? If that is right what you are saying is that the actual microsiemens reading of a TDS showing 1.0 is 2.0 microsiemens? Yes? No? thanks, sol -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
my TDS meter reads 000 when put in my distilled water. dee On 29 Oct 2009, at 00:29, sol wrote: Ode Coyote wrote: A TDS, in effect reads in every OTHER digit of conductivity..not even whole numbers. That's something like 40% as good as a COM-100 Please clarify this for me. A TDS' smallest reading is 1.0? If that is right what you are saying is that the actual microsiemens reading of a TDS showing 1.0 is 2.0 microsiemens? Yes? No? thanks, sol -- -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
Great info, Ode, thank you very much for reporting it. I have not done the calibrating work to know the details, but just from reading the info that comes with the meters one can see the resolution is much lower- it seemed like half to me; as you point out it is more than that. I love being able to read in tenths, it makes the readings meaningful to the calculations (Faraday stuff). Mine reads a straight one to one with the Faraday calcs, when I read the solution immediately. It took a while to get enough readings to be able to make that statement with confidence, but there it is. Kathryn On Oct 29, 2009, at 8:03 AM, Ode Coyote wrote: A TDS meter takes +/- 2 uS of conductivity to read 1 PPM and does it in whole digits. That makes the resolution of an EC meter that only displays whole digits, about twice that of a TDS meter. Take out around +/-.9 % for not having decimal places and that's around 90% as good a resolution. Subtract that from 2 digit EC resolution and you get a TDS meter that's +/- 40% as good as an EC meter that has a decimal place. TDS meters sometimes have a nasty habit of skipping a digit while calibrating them too... it just won't display a 5 or a 7 as you twist the screw...jumping from 4 to 6, for example. That's, at LEAST, a 4 uS **possible** built in read error and could be as much as almost 8 uS with no way to tell which...depending on where on the scale you are and that particular meter. I've never seen an EC meter skip a digit. Ode At 06:29 PM 10/28/2009 -0600, you wrote: Ode Coyote wrote: A TDS, in effect reads in every OTHER digit of conductivity..not even whole numbers. That's something like 40% as good as a COM-100 Please clarify this for me. A TDS' smallest reading is 1.0? If that is right what you are saying is that the actual microsiemens reading of a TDS showing 1.0 is 2.0 microsiemens? Yes? No? thanks, sol -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
A TDS, in effect reads in every OTHER digit of conductivity..not even whole numbers. That's something like 40% as good as a COM-100 Ode At 10:27 PM 10/27/2009 -0600, you wrote: Ode Coyote wrote: The HM Digital AP2 and EC3 conductivity meters are 90% as good as a COM-100. AS good ...except they don't read in 10ths of a uS, whole numbers only. LOL, I thought that is what I said? I need a meter that reads in 10ths of a uS. A TDS is not adequate for my needs. sol -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
Yes, So knowing what product NOT to buy is also useful information... Chuck Never let your schooling interfere with your education On 10/28/2009 12:27:21 AM, sol (sol...@sweetwaterhsa.com) wrote: Ode Coyote wrote: The HM Digital AP2 and EC3 conductivity meters are 90% as good as a COM-100. AS good ...except they don't read in 10ths of a uS, whole numbers only. LOL, I thought that is what I said? I need a meter that reads in 10ths of a uS. A TDS is not adequate for my needs. sol No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.36/2465 - Release Date: 10/28/09 09:34:00
Re: CSEC meter
Ode Coyote wrote: A TDS, in effect reads in every OTHER digit of conductivity..not even whole numbers. That's something like 40% as good as a COM-100 Please clarify this for me. A TDS' smallest reading is 1.0? If that is right what you are saying is that the actual microsiemens reading of a TDS showing 1.0 is 2.0 microsiemens? Yes? No? thanks, sol -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
It's even tougher for a 0 reading...Could be 100 times multiplier... BWAHAHAHAHA Chuck Never make anything simple and efficient when it can be complex and wonderful On 10/28/2009 8:29:51 PM, sol (sol...@sweetwaterhsa.com) wrote: Ode Coyote wrote: A TDS, in effect reads in every OTHER digit of conductivity..not even whole numbers. That's something like 40% as good as a COM-100 Please clarify this for me. A TDS' smallest reading is 1.0? If that is right what you are saying is that the actual microsiemens reading of a TDS showing 1.0 is 2.0 microsiemens? Yes? No? thanks, sol No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.36/2465 - Release Date: 10/28/09 09:34:00
Re: CSEC meter
Decent meter...pretty good deal. Ode At 09:17 AM 10/26/2009 -0700, you wrote: Found this website, http://www.eseasongear.com/tds1.html Considering the HM Digital AP-2. Their prices seem to be very reasonable. Any thoughts about this meter? Anybody have experience with this company? TIA -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
The HM Digital AP2 and EC3 conductivity meters are 90% as good as a COM-100. AS good ...except they don't read in 10ths of a uS, whole numbers only. The AP2 AquaPro has a magnetic case so you can stick it to the fridge. Ode At 12:19 PM 10/26/2009 -0600, you wrote: A TDS meter is not adequate for my needs. I have a PWT, but I would get a Com-100 next time. Silverpuppy sells the Com-100 for $55 shipping included. sol lk wrote: Found this website, http://www.eseasongear.com/tds1.html Considering the HM Digital AP-2. Their prices seem to be very reasonable. Any thoughts about this meter? Anybody have experience with this company? TIA -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
Meters in general are the wrong tools to start with..but the best that anyone can afford. Since it's only an approximation at best , 10ths of a uS might not be worth the price difference. Ode At 11:47 AM 10/26/2009 -0700, you wrote: Thanks Kathryn. The HM AP-2 does measure in EC as opposed to ppm. I did notice that the sensor in the HM COM 100 is replaceable it does measure to a smaller increment 0.1. Are these things that one needs to be concerned about or is it just an added plus? Reason I ask is I need to be economical but also don't want to cut myself short in getting the proper equipment to do the job right. :) --- On Mon, 10/26/09, Clayton Family clay...@skypoint.com wrote: From: Clayton Family clay...@skypoint.com Subject: Re: CSEC meter To: silver-list@eskimo.com Date: Monday, October 26, 2009, 1:09 PM not about the company, but I have the HM COM 100 and love it. I prefer one that reads directly in EC, not ppm, although the com 100 will also read ppm, I like my data straight, without having to double the reading. kathryn On Oct 26, 2009, at 11:17 AM, lk wrote: Found this website, http://www.eseasongear.com/tds1.htmlhttp://www.eseasongear.com/tds1.htm l Considering the HM Digital AP-2. Their prices seem to be very reasonable. Any thoughts about this meter? Anybody have experience with this company? TIA -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
Ode Coyote wrote: The HM Digital AP2 and EC3 conductivity meters are 90% as good as a COM-100. AS good ...except they don't read in 10ths of a uS, whole numbers only. LOL, I thought that is what I said? I need a meter that reads in 10ths of a uS. A TDS is not adequate for my needs. sol -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
Ode Coyote wrote: Meters in general are the wrong tools to start with..but the best that anyone can afford. Since it's only an approximation at best , 10ths of a uS might not be worth the price difference. Probably true for most people in most areas of the U.S. Not here though. sol -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
CSEC meter
Found this website, http://www.eseasongear.com/tds1.html Considering the HM Digital AP-2. Their prices seem to be very reasonable. Any thoughts about this meter? Anybody have experience with this company? TIA
Re: CSEC meter
not about the company, but I have the HM COM 100 and love it. I prefer one that reads directly in EC, not ppm, although the com 100 will also read ppm, I like my data straight, without having to double the reading. kathryn On Oct 26, 2009, at 11:17 AM, lk wrote: Found this website, http://www.eseasongear.com/tds1.html Considering the HM Digital AP-2. Their prices seem to be very reasonable. Any thoughts about this meter? Anybody have experience with this company? TIA
Re: CSEC meter
A TDS meter is not adequate for my needs. I have a PWT, but I would get a Com-100 next time. Silverpuppy sells the Com-100 for $55 shipping included. sol lk wrote: Found this website, http://www.eseasongear.com/tds1.html Considering the HM Digital AP-2. Their prices seem to be very reasonable. Any thoughts about this meter? Anybody have experience with this company? TIA -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
Thanks Kathryn. The HM AP-2 does measure in EC as opposed to ppm. I did notice that the sensor in the HM COM 100 is replaceable it does measure to a smaller increment 0.1. Are these things that one needs to be concerned about or is it just an added plus? Reason I ask is I need to be economical but also don't want to cut myself short in getting the proper equipment to do the job right. :) --- On Mon, 10/26/09, Clayton Family clay...@skypoint.com wrote: From: Clayton Family clay...@skypoint.com Subject: Re: CSEC meter To: silver-list@eskimo.com Date: Monday, October 26, 2009, 1:09 PM not about the company, but I have the HM COM 100 and love it. I prefer one that reads directly in EC, not ppm, although the com 100 will also read ppm, I like my data straight, without having to double the reading. kathryn On Oct 26, 2009, at 11:17 AM, lk wrote: Found this website, http://www.eseasongear.com/tds1.html Considering the HM Digital AP-2. Their prices seem to be very reasonable. Any thoughts about this meter? Anybody have experience with this company? TIA
Re: CSEC meter
Clayton Family wrote: not about the company, but I have the HM COM 100 and love it. I prefer one that reads directly in EC, not ppm, although the com 100 will also read ppm, I like my data straight, without having to double the reading. I should add to my earlier post that I need distilled water to be .3 uS or less to make perfectly clear CS. And a TDS can't read that low, thus would be useless for me. sol -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour mdev...@eskimo.com
Re: CSEC meter
It depends on how fussy you want to be. I like my meters, and for me, 55 dollars is not too much. I like to be fussy at times, and wanted to see how accurate I could get with an at home battery set up, so I needed the extra accuracy for my own purposes. Others say they make perfectly good stuff with the ppm meter. They are all EC meters, at least the ones I looked at; it depends on the calibration ( I decided against doing additional calibration) and accuracy. I have had mine for maybe 3 years? and the electrodes are fine. They might wear out more if you are measuring salt water, but for our purposes, probably not necessary. It is nice to have one that is immersible. What I have heard is that if you have the tds (reads in Total Dissolved Solids) meters, then you just have to double the reading. And when you measure the water first, to see that it is good enough, it needs to measure zero or below 2- someone correct me if I am in error. HM is a good company. Don't know about the seller, though. I got mine from silverpuppy dot com Kathryn On Oct 26, 2009, at 1:47 PM, lk wrote: Thanks Kathryn. The HM AP-2 does measure in EC as opposed to ppm. I did notice that the sensor in the HM COM 100 is replaceable it does measure to a smaller increment 0.1. Are these things that one needs to be concerned about or is it just an added plus? Reason I ask is I need to be economical but also don't want to cut myself short in getting the proper equipment to do the job right. :) --- On Mon, 10/26/09, Clayton Family clay...@skypoint.com wrote: From: Clayton Family clay...@skypoint.com Subject: Re: CSEC meter To: silver-list@eskimo.com Date: Monday, October 26, 2009, 1:09 PM not about the company, but I have the HM COM 100 and love it. I prefer one that reads directly in EC, not ppm, although the com 100 will also read ppm, I like my data straight, without having to double the reading. kathryn On Oct 26, 2009, at 11:17 AM, lk wrote: Found this website, http://www.eseasongear.com/tds1.html Considering the HM Digital AP-2. Their prices seem to be very reasonable. Any thoughts about this meter? Anybody have experience with this company? TIA
Re: CSEC meter
Thanks again. With the accuracy of the COM 100, it looks like the way to go especially since water purity is rule number one. --- On Mon, 10/26/09, Clayton Family clay...@skypoint.com wrote: From: Clayton Family clay...@skypoint.com Subject: Re: CSEC meter To: silver-list@eskimo.com Date: Monday, October 26, 2009, 9:24 PM It depends on how fussy you want to be. I like my meters, and for me, 55 dollars is not too much. I like to be fussy at times, and wanted to see how accurate I could get with an at home battery set up, so I needed the extra accuracy for my own purposes. Others say they make perfectly good stuff with the ppm meter. They are all EC meters, at least the ones I looked at; it depends on the calibration ( I decided against doing additional calibration) and accuracy. I have had mine for maybe 3 years? and the electrodes are fine. They might wear out more if you are measuring salt water, but for our purposes, probably not necessary. It is nice to have one that is immersible. What I have heard is that if you have the tds (reads in Total Dissolved Solids) meters, then you just have to double the reading. And when you measure the water first, to see that it is good enough, it needs to measure zero or below 2- someone correct me if I am in error. HM is a good company. Don't know about the seller, though. I got mine from silverpuppy dot com Kathryn On Oct 26, 2009, at 1:47 PM, lk wrote: Thanks Kathryn. The HM AP-2 does measure in EC as opposed to ppm. I did notice that the sensor in the HM COM 100 is replaceable it does measure to a smaller increment 0.1. Are these things that one needs to be concerned about or is it just an added plus? Reason I ask is I need to be economical but also don't want to cut myself short in getting the proper equipment to do the job right. :) --- On Mon, 10/26/09, Clayton Family clay...@skypoint.com wrote: From: Clayton Family clay...@skypoint.com Subject: Re: CSEC meter To: silver-list@eskimo.com Date: Monday, October 26, 2009, 1:09 PM not about the company, but I have the HM COM 100 and love it. I prefer one that reads directly in EC, not ppm, although the com 100 will also read ppm, I like my data straight, without having to double the reading. kathryn On Oct 26, 2009, at 11:17 AM, lk wrote: Found this website, http://www.eseasongear.com/tds1.html Considering the HM Digital AP-2. Their prices seem to be very reasonable. Any thoughts about this meter? Anybody have experience with this company? TIA
RE: CSEC meter
Anything under 3uS is acceptable to me, although one can only use the purest water one may be able to get their hands on, beggars can't be chosers in some situations, at the end of the day, all things considered, when all is said and done and push comes to shove...look on the bright side...any EIS/CS is better than none g, so I wouldn't get paranoid over it, so long as one doesn't start putting a mish-mash of other 'stuff' in the water resulting in some dubious Frankenstein 'concoction'. N. Date: Mon, 26 Oct 2009 19:26:22 -0700 From: ladybugadoo...@yahoo.com Subject: Re: CSEC meter To: silver-list@eskimo.com Thanks again. With the accuracy of the COM 100, it looks like the way to go especially since water purity is rule number one. --- On Mon, 10/26/09, Clayton Family clay...@skypoint.com wrote: From: Clayton Family clay...@skypoint.com Subject: Re: CSEC meter To: silver-list@eskimo.com Date: Monday, October 26, 2009, 9:24 PM It depends on how fussy you want to be. I like my meters, and for me, 55 dollars is not too much. I like to be fussy at times, and wanted to see how accurate I could get with an at home battery set up, so I needed the extra accuracy for my own purposes. Others say they make perfectly good stuff with the ppm meter. They are all EC meters, at least the ones I looked at; it depends on the calibration ( I decided against doing additional calibration) and accuracy. I have had mine for maybe 3 years? and the electrodes are fine. They might wear out more if you are measuring salt water, but for our purposes, probably not necessary. It is nice to have one that is immersible. What I have heard is that if you have the tds (reads in Total Dissolved Solids) meters, then you just have to double the reading. And when you measure the water first, to see that it is good enough, it needs to measure zero or below 2- someone correct me if I am in error. HM is a good company. Don't know about the seller, though. I got mine from silverpuppy dot com Kathryn On Oct 26, 2009, at 1:47 PM, lk wrote: Thanks Kathryn. The HM AP-2 does measure in EC as opposed to ppm. I did notice that the sensor in the HM COM 100 is replaceable it does measure to a smaller increment 0.1. Are these things that one needs to be concerned about or is it just an added plus? Reason I ask is I need to be economical but also don't want to cut myself short in getting the proper equipment to do the job right. :) --- On Mon, 10/26/09, Clayton Family clay...@skypoint.com wrote: From: Clayton Family clay...@skypoint.com Subject: Re: CSEC meter To: silver-list@eskimo.com Date: Monday, October 26, 2009, 1:09 PM not about the company, but I have the HM COM 100 and love it. I prefer one that reads directly in EC, not ppm, although the com 100 will also read ppm, I like my data straight, without having to double the reading. kathryn On Oct 26, 2009, at 11:17 AM, lk wrote: Found this website, http://www.eseasongear.com/tds1.html Considering the HM Digital AP-2. Their prices seem to be very reasonable. Any thoughts about this meter? Anybody have experience with this company? TIA _ Take a peek at other people's pay and perks Check out The Great Australian Pay Check http://clk.atdmt.com/NMN/go/157639755/direct/01/
