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Overview
A mini 2-wire voltmeter measures a DC (Direct Current) voltage ranging from 2.5 to 40V DC and has a 0.28 inch LED display. The 2-wire configuration has a red and black wires. It is a commonly used configuration for measuring electrical potential difference across two points in a circuit using only two connection wires.
The 2-wire setup is easy to install and use, often ideal for quick voltage checks in the field.
Specification
| Measuring Range | 2.5 - 40V DC |
|---|---|
| Working Voltage | Red: 2.5 - 40V DC Green: 2.6 - 40V DC Blue: 3.2 - 40V DC Yellow: 3.2 - 40V DC |
| Tolerance | ±1% |
| Current | 3 - 4mA |
| Refresh Rate | 200 milliseconds |
| Display | 3 Digit, 0.28 inch LED |
| Display Color | Red, Green, Blue or Yellow |
| Wire Length | 15cm |
| Dimensions | 23mm x 15mm x 10mm |
| Mounting Holes | 2x 1.9mm |
Connection & Pinout
Connection and pinout for 2-wire voltmeter
| Red Wire | Positive Terminal Connects to the positive side of the circuit. |
|---|---|
| Black Wire | Negative Terminal Connects to the negative side of the circuit. |
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