5pcs Green DC2.7-30V LCD Display Digital Voltage Meter Waterproof Dustproof 0.4 Inch LED Digital Tube

Feature Material PlasticDisplay color GreenDimensions 40 x 25 x 23mmCutting Size 37 x 20mmCable length 20cmMeasure range DC 2 7 30 0VMaximum input DC 30VAllowable error 0 01V resolution below 10V 0 1V resolution above 10V 1 error tolerance 1bit Display Three 0 40 LED digital tubeVoltage Green DC 2 7 30 0V Refresh rate about 500mSPower supply sharing power with measurementCurrent consumption less than 20mA generally 5 15mAOperating temperature 10 V 65 CVoltmeter with epoxy potting Full waterproof design Oil Pollution Prevention Moistureproof Shockproof Dust proofWith Reverse polarity protection Application Do not need power supply can measure 2 5 30V directlyIf the input voltage is below 3 5V the display brightness dimsIf the input voltage is below 2 5V measuring inaccurate or no displayWhen measure 10V below accurate to 0 01V display x xxWhen 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 5 x Waterproof voltage meter