Mini Size Led Panel Voltage Meter 3-digital Lcd Display Adjustment Vol

Features: No power supply needed. Quality can be greatly ensured. Super high accuracy meet your great need for precision. Precision automatic adjustment, when less than 10V accurate to 0.01V, more than 10V accurate to 0.1V. And it is self-powered version, Two wire connection, with reverse polarity protective. Specifications: Display color: Red, Blue Two-wire Measurement range: DC 4.5~30V Working Current:< 23mA Working Temperature: -10C-65C Minimum input voltage: DC 4.5V(Lower than 4.5V, the brightness will be weakened, but this will not affect the accuracy of measurement) Maxmum input voltage: DC 30V(Higher than this voltage is has a risk of overburning) Permissible error: 1%(1 digit) Display mode: three digit 0.36& 39;& 39;LED digital tube Size: 21.5 x 13 x 8mm (L*W*H) Speed ratio: about 200ms/time Lead wire length: 15cm Package Includes: 1x Digital Voltmeter