1Pc Waterproof Monitor DC 2.7- 30V Auto Gauge Digital Voltmeter Green LED

Description

Specification:
Dimensions: 40 x 25 x 23mm
Cutting Size: 37x20mm
Measure range: Red (DC 2.5-30.0V)
Green (DC 2.7-30.0V)
Blue (DC 3.0-30.0V)
Maximum input: DC 30V
Permissible Error: 1% (+ / - 1 digit)
Display: Three 0.40" LED digital tube
Display Color: Red (DC 2.5-30.0V) Green (DC 2.7-30.0V) Blue (DC 3.0-30.0V)
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
Application:
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
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