Description: Digital voltmeter is compact ,measurment range is DC 0-100V. Need additional auxiliary power supply, power supply voltage range is super wide, up to 3.5-30V, can work in 5V, 9V, 12V, 24V, etc., without voltage regulator. The power supply is protected by reverse connection, which does not burn. Display devices are using bright LED digital tube, can long-term display the battery capacity, voltage, temperature, convenient to use in a variety of lighting conditions. Widely used in most instrument, electromobile, balance car and more. Specification: Material:ABS Plastic+CCL Voltage measurement range: DC 0-100V Working electric current: < 20MA Display: LED screen Measurement accuracy: 1% 1 digit Refresh rate:Approx. 500 ms/time Operating temperature: -10 ~ +65C Size Chart: Size:48x29x21mm/1.89x1.14x0.83 Package Includes: 1 Piece LED Voltage Detector Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!