DC 0V-100V Mini 0.28 inch Red LED Digital Voltmeter 3 wire

Specifications:

• 2 line working voltage: 4.0~40V (with reverse connection protection function)
• 2 wire detection voltage: 0.0~40V
• 3 line working voltage: 4.0~40V (with reverse connection protection function)
• 3 wire detection voltage: 0.0~100V
• Operating current: <20mA
• Display: 0.28, “LED”, red
• Size: 33 x 10.7 x 8.2 mm (length * width * height)
• Installing openings: 28.5 * 10 mm
• The measurement rate: more than 200mS/ times
• Measuring accuracy: 3 per thousand
• Extreme working condition
• Low operating voltage: +4.0V
• Maximum operating voltage: +40V
• Operating temperature: -10 ~ +65 DEG C
• Working humidity: 10 ~ 80% (without gel)
• Working pressure: 80 ~ 106kPa

Small in size and light in weight, quite easy and convenient to carry out.
0.28″” visible LED display, easy to read even in dim light.
Wide measure range DC 0V-100v. It requires extra power supply of 4V to 30V; only has three-wires for simple connection.
With reversed connection protection, meaning it will not burn even when wires are connected reversely.
Has resolution of 0.1V and the potentiometer in the back side for accuracy adjustment.

1PC 0.28  inch red led voltmeter