[Don Wright]

I'm looking for an indicator lamp that will indicate when a battery voltage drops below a certain voltage setpoint (i.e. 10 volts). I need to keep some engine electronics alive during transport of an engine with a battery and need an indicator that is green, or steady, or something when the voltage of the battery is above the setpoint, put changes to red, or flashes, or something when the voltage drops below the setpoint to alert someone to throw a charger onto the battery.

Anybody have any ideas? We found one, but the green color was so dim, you couldn't really tell it was on unless you were looking right over it...not good for a test cell.

Thanks. I know this isn't FIRST related, but I hoping someone here can help...