Use a 12V solar panel big enough to run the VDO Quartz clock from an MB instrument cluster. (W114 or newer.) No battery, clock runs when there's sunlight, doesn't when not. There's your data logger. Just remember to read it every 12 hours so you don't drop a stitch. You might need to mask off part of the array, and/or use a bleed resistor, so that the clock does not run in indirect sunlight.
-- Jim _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
