12V Two Wire Digital LCD Display Electric Meter

12V Two Wire Digital LCD Display Electric Meter

This is tiny and compact digital battery level indicator with LED display. The 12V Two-Wire Digital Display Battery Level indicator requires only a few minutes of configuration and is as simple as directly connecting wires to the source you want to measure and seeing the LED blink.

Display Electricity Quantity Parameter:(note: N represents battery quantity)
1. When the battery voltage is over N*3.3V, it will illuminate 1 block of electricity quantity
2. When the battery voltage is over N*3.5V, it will illuminate 2 blocks of electricity quantity
3. When the battery voltage is over N*3.7V, it will illuminate 3 blocks of electricity quantity
4. When the battery voltage is over N*3.9V, it will illuminate 4 blocks of electricity quantity
5. When the battery voltage is less than N*3.3V, 4 blocks display will be off; it represents the battery is less than 3.3V, and you can charge the battery

The red wire is to connect to the positive pole, the black wire is to connect to the negative pole. No need to worry even if there is any connection mismatch of the wires, the electric circuit won't be a boom because it features reverse polarity protection.

Specifications:

Shell Color: Black
Display Color: Outline: RED, Status Block: BLUE
Voltage Tolerance: ±1%
4 Levels of Power: 25%, 50%, 75%, 100% full
Working Temperature: -20°C ~ 65°C
Working Current: 5-15 mA
Refresh Speed: 300 mS once
Lead Length: about 20cm

note: please allow ±0.5mm error due to manual measuring