3pcs Red DC2.5-30V LCD Display Digital Voltage Meter Waterproof Dustproof 0.4 Inch LED Digital Tube

Feature:

 

Material: Plastic

Display color: Red

Dimensions: 40 x 25 x 23mm

Cutting Size: 37 x 20mm
Cable length: 20cm

Measure range: DC 2.7-30.0V

Maximum input: DC 30V

Allowable error: 0.01V resolution below 10V, 0.1V resolution above 10V, 1% error tolerance (+/-1bit)

Display: Three 0.40" LED digital tube

Voltage: Red (DC 2.5-30.0V)

Refresh rate: about 500mS

Power supply: sharing power with measurement

Current consumption: less than 20mA, generally 5-15mA

Operating temperature: -10 °V ~ 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

 

Note:

 

Manual measuring, please allow 0-1cm error, thank you.

Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!!

In actual use, due to fluctuations in power supply voltage and accuracy, fluctuations and differences of 1-2 bit may be encountered. This situation is normal, please understand.
 

Package includes:

 

3 x Waterproof voltage meter