$5.90
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DC4-100V LED Display Circular Two-wire Automotive Voltmeter Digital Car Voltage Current Meter Volt Detector Tester Monitor Panel Easy to Install Reverse Polarity Protection
Features
1. Ultra-thin mirror
2. Round hole
3. Easy to install
4. Reverse polarity protection
5. Reverse connection does not burn
Product parameters
Measuring range: 4V-100V
Power supply range: 4V-100V
Minimum startup: 3.8V
Allowable error: ±1%
Input impedance: >100K ohms
Operating current: red <15mA, green <12mA, blue <12mA
Refresh rate: about 300mS/time
Display mode: three-digit circular LED digital tube
Display colour: red, green, blue optional
Lead length: 20cm
Dimensions: Diameter 33.8
Hole size: diameter 30.0
Working temperature: -10℃～65℃
Note: Input voltages higher than 100V may be permanently damaged
