3pcs Adjustable 0.28-Inch Digital Blue DC Voltmeter 2.5-30V Two-Wire Display

Product Features:

• Simple wiring: Connect with conventional two wires. Red for positive and black for negative connections. The device is reverse connection protected.
• No external power source required: Operates directly on the measuring voltage. Suitable voltage ranges are 2.50-30V for two-wire and up to 100V for three-wire systems.
• Wide voltage operation: Functions from as low as 2.50V up to 40V. Note: Voltages above 40V may cause damage.
• Display: Precision varies with measurement range. Two decimal places for voltages below 10V, and one decimal place for voltages above 10V.

Specifications:

• Measuring Range: Two-wire DC 2.50~32.0V
• Power Supply: No external power supply needed
• Test Accuracy: ±1% for readings, >10V possible error of ±0.1V
• Input Resistance: Greater than 50KΩ
• Working Current: Refresh rate of approximately 100ms
• Display: Three-digit 0.28 LED digital display
• 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:

• 5 x Voltage Meter