... red/green LED and yellow LED. The button on housing can be used to start logging or confirm and clear LED alarm. APPLICATIONSManufacturing ... Voltage measurement range: 0 to 30V (0 to 3V, 5V, 10V, 12V and 24V etc. can be customized)DC Voltage accuracy : ±1%DC Voltage resolution ... . 3 Years @ 1 Minute Sample RateCase Material:ABS, TPU, PC Operating temperature range: -35 to 80°C(-31 to 176°F) Dimentions ...