Geekcreit® 0.28 Digital Voltmeter Adjustable DC Voltage Meter, Two-wire 2.5-30V / Three-wire 0-100/500V Display

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Product Description Product Details Feature: The wiring of this voltmeter is simple. It uses a conventional two-wire system, where the red wire connects to the positive and the bla ck wire connects to the negative. Protection against reverse connection is ensured. No external power supply is generally needed. The voltmeter can directly operate with the measuring voltage. The measuring voltage range is 2.50-30V for two-wire and 0-100V for three-wire connections. This voltmeter supports wide voltage operation, with a low safe limit of 2.50V and a maximum up to 40V. Voltages exceeding 40V may cause damage. When measuring voltages below 10V, two decimal places are displayed. For voltages above 10V, only one decimal place is shown. Specifications: Measuring Range: Two-wire DC 2.50~32.0V / Three-wire DC 0-100V Power Supply Range: No need to supply power separately. Test Accuracy: ±1%. For >10V, error ±0.1V Input Resistance: >50KΩ Working Current: Not specified Refresh Rate: Approximately 100ms Display Specification: Three-digit 0.28 LED digital tubes Lead Length: Default 20cm Dimensions: 30 x 11.5 x 9 mm Hole Size: Pitch: 26mm, Aperture: 2.4mm Net Weight: 4g Operating Temperature: -10 to +80°C Working Humidity: 10 to 80% Working Pressure: 80 to 106 kPa Package Includes: 1 x Voltage Meter Show more