I have the VM 137 set up to turn on a cooling system (TEC). When I put the Thermistor in ice water (32F) it switches by turning the potentiometer. This seems way out of spec. I would prefer a range of 40F to 70F. Can you confirm what the actual range really is? What resistors change or thermistor change would be necessary to get the desired range of 40-70F.
Thanks!
Dixon