... data logger measures and stores up to 32,000 DC Voltage readings. Especially, more professional applications can ... ITEM NO: ER-30DC 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 : 40mV (For 0 to 30V range)Without LCD ... .2")Weight Approx. : 82g Hot Sale! DC Voltage 0 to 30v process signal measurement data logger