0.4" Waterproof LED Digital Voltmeter 2.5-30V 12V 24V RED Car Motor Motorcycle Panel Meter

Voltage Test Meter 0.4"  2.5-30V DC

RED GREEN BLUE  LED Digital Voltmeter 

• Dimensions:40 x 30 x 27mm
• Cutting Size: 46x27mm
• Measure range: DC 3.0-30.0V
• Minimum input: DC 3.0V
• Maximum input: DC 30V
• Permissible Error: 1% (+ / - 1 digit)
• Display: three 0.40" LED digital tube
• Display Color:  RED
• Refresh rate: about 500mS
• Current consumption: about 5-20mA
• Operating temperature: -10 °c ~ 65 °c
• Voltmeter with epoxy potting, Full waterproof design, Oil Pollution Prevention, Moistureproof, Shockproof, Dust-proof
• With Reverse polarity protection

Please Note:

• Do not need power supply, can measure 2.5-30V directly
• If the input voltage is below 3.5V, the display brightness dims
• If the input voltage is below 2.5V,measuring inaccurate or no display
• when measure 10V below, accurate to 0.01V,display x.xx
• when measure 10V or more,accurate to 0.1V,display xx.x