347348 Features: 1. Integrate power supply and measurement inputs in one， with only two wires， no power supply is needed， easy to connect. 2. With reverse polarity connection protection， does not burn when the polarities are connected reversely. 3. Operating voltage range (ie range): wide， can work in DC2.5V-30V range. Can be used for various voltage measurements 4. Lead cable length: 15cm Display: three digits 0.36" LED digital tube Refresh rate: about 500mS / time 5. Operating temperature: -10°C ~ 65°C Color: Black Material: plastic housing LED display color: red Voltage: DC2.5V-30V Display: three digit Size: about 48 x 28.5 x 20 mm Hole size: 45 x 26 mm Lead cable length: 15 cm With reverse polarity connection protection Wiring: Red wire to connect to positive pole， and black wire to connect to negative pole 1 x Voltage Meter In static bag