0.28" Mini Digital Voltmeter (DC 0-100V / 3 Wired) With this product, you can learn by automatically detecting each cell voltage and total voltage of lithium batteries with lithium battery detection and voltage indicator between 1S~8S. It supports protection from reverse connection. When the voltage value drops below the set buzzer alarm level, the buzzer sounds. Technical Specifications 3-wire working voltage: 4.0 ~ 40 V (with reverse connection protection function)

3-wire sensing voltage: 0.0 ~ 100 V

Operating current: <20mA

Display mode: 0.28" led

Dimensions: 30 × 11.7 × 9.2mm

Installation aperture: 23 × 10mm

Measuring ratio: ?200mS/time

Measurement accuracy: 3,5

Low operating voltage: + 4.0 V

Operating voltage: + 40 V

Operating temperature: -10 ~ +65 ° c

Operating humidity: 10 to 80% (without condensation)

Working pressure: 80 ~ 106kPa