3pcs 0.28 Inch DC Voltmeter, Adjustable 0-100V Red Digital Display, Three-wire

Product Features:

• Simple Wiring: Our voltmeter features easy wiring with only two conventional wires. Connect the red wire to positive and the black wire to negative. It includes protection against reverse connections.
• No External Power Required: The voltmeter operates directly with the measured voltage. The measurement voltage range is 2.50-30V for two-wire and up to 100V for three-wire connections.
• Wide Voltage Operation: Operates safely from as low as 2.50V to a maximum of 40V. Voltage above 40V may damage the device.
• Display Precision: For voltages below 10V, two digits are displayed after the decimal point. For voltages above 10V, one digit is displayed after the decimal point.

Technical Specifications:

• Measuring Range: DC 0-100V / 500V for three-wire systems.
• No External Power Supply Needed: The device is powered by the measured voltage.
• Test Accuracy: Accurate within ±1%. Error is ±0.1V for >10V measurements.
• Input Resistance: Greater than 50KΩ.
• Refresh Rate: Approximately every 100ms.
• Display Specification: Utilizes three digit 0.28" LED digital tubes.
• Lead Length: The default lead length is 20cm.
• Dimensions: 30 x 11.5 x 9 mm.
• Hole Size: Pitch: 26mm; Aperture: 2.4mm.
• Net Weight: 4g.
• Operating Temperature: From -10 to +80 °C.
• Working Humidity: Ranges from 10 to 80%.
• Working Pressure: From 80 to 106 kPa.

Package Includes:

• 3 x Voltage Meter