1Pc DC 2.5-30V LED Display Test Tool Mini Panel Meter Voltameter Voltage Voltmeter 3-Digital Gauge

Label:Yes Speed ratio: about 100ms/time Minimum input voltage: DC 2.5V(Lower than 2.5V, the brightness will be weakened, but this will not affect the accuracy of measurement) Lead wire length: 15cm Maxmum input voltage: DC 40V(Higher than this voltage is has a risk of overburning) Working Current:< 30mA Working Temperature: -10C-65C Two-wire Measurement range: DC 2.5~31.5V Display color: red/ yellow / blue / green.(Please choose the color before you buy it.) Permissible error: 1%(±1 digit) Size: 30 x 11.5 x 9mm (L*W*H) Display mode: three digit LED digital tube

100% Brand new and high quality Accuracy 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 protection No power supply needed

Package Included: 1x Digital Voltmeter