A good replacement is the Bogart TM-2025-A. It is a refreshed version of the TM-2020. It can handle 12-48V and can display Watts. You can also use the Bogart PentaMetric. It will cost more, since you will need a "sending" unit, a display and it can even add a serial interface to talk to a PC. Speaking of "PCs", you can also add a greenMonitor Lite with the PentaMetric option. It works pretty well and can send email and has a small web interface of what is going on. Of course, all that will add up in cost... Another gizmo that I like to use (but does not show amps/AH, so sorry for bring it up) is the MidNite Battery Condition Monitor. It is a simple device that keeps track of when the last time the batteries made it to Absorb. It is a simple & cheap "idiot light" style meter. Good luck! Maverick
_____ From: [email protected] [mailto:[email protected]] On Behalf Of William Miller Sent: Monday, February 14, 2011 7:23 PM To: RE-wrenches Subject: [RE-wrenches] Off-grid system monitoring Wrenches: An off grid client has a system monitor that has not been very a satisfactory. I belive it is a Trace Meter 500. It is not calibrateable and the results are not reliable. Is there a newer monitor that will show battery voltage and charging and discharging amps and amp/hours that any of you could recommend? Thanks in advance! William Miller Please note new e-mail address and domain: William Miller Miller Solar Voice :805-438-5600 email: [email protected] http://millersolar.com <http://millersolar.com/> License No. C-10-773985
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