Waterproof Monitor 2-Wires DC 3.3-30v 12v 24v 30v Volt Battery Meter Voltage Tester Automative Electric Cars Gauge Small Digital Voltmeter Green 0.52" LED Display (DC 3.3-30V, Green)
High accuracy: Its decimal point will automatically move, and It also has a
tiny potentiometer to do finer adjustments. Easy to connect wires: It only has
two wires, the red connects to positive and the black connects to negative.
Safe to use: with reversed connection protection, it will not be burnt even
when connected reversely, but the screen display nothing. Large screen and
bright LED display, and it is well made, the strong plastic case prevents it
from easily damaged by outer force. It is perfect to monitor the condition of
the battery, especially for solar projects, you can use it on your car,
trailer, motor, etc. Dimensions: 54mm x 28mm x 30mm Cutting Size: 47.2x27.3mm
Input:Red+ / Black- Measure voltage: DC 3.3-30V (two wires Access) Input
Polarity: DC voltage Measurement precision: Display: Three 0.52" digital LED
Tube Refresh rate: about 500mS / times Operating temperature: -10°c to 65°c
Package Includes: 1x Digital LED Voltmeter
 
Product Features
  

         
Measure voltage: DC 3.3-30V (two wires Access)
         
Input Polarity: DC voltage
         
Display: Three 0.52" digital LED Tube
         
Display Color: GREEN
         
Refresh rate: about 500mS / times