Size 1
Display color: Red
Two-wire Measurement range: DC 4.5~32V
Working Current:< 23mA
Working Temperature: -10C-65C
Minimum input voltage: DC 4.5V(Lower than 4.5V, the brightness will be weakened, but this will not affect the accuracy of measurement)
Maxmum input voltage: DC 30V(Higher than this voltage is has a risk of overburning)
Permissible error: 1%(±1 digit)
Display mode: three digit 0.36''LED digital tube
Size: 21.5 x 13 x 8mm (L*W*H)
Speed ratio: about 200ms/time
Lead wire length: 15cm
Net Weight:5 g approx.
Weight:15 g approx
color:blue,green,red,yellow

Package Includes:
1x Digital Voltmeter

Size 2
Reverse Connect Protection
Range: DC2.5-30V (No need aditional power)
Display: Three 0.36'' LED digital tube
Display color: Red, Green, Blue, Yellow (Please choose the color you need, or we will ship by Random Color, Hope you can understand!! )
Refresh rate: about 500mS / times
Input: DC voltage (<2 times the range)
Resolution: 1% +1 digit
Power Supply: DC4.5-30V (with the input common-line)
Operating temperature: -10°c~ 65°c
Package Includes:
1x Digital Voltmeter


Size 3
Color:Blue,Red,Yellow,Green
Measuring range: DC 0V--30V
Input range: DC 4V-30V(Max Input: DC 32V. The device can be damaged if input is over 32V)
Display: Three 0.56 "digital tube
Measurement accuracy: 2%
Refresh rate: about 300mS / times
Input impedance: About 100K
Dimensions:48mm*29mm*22mm
Operation Temp: -10 -+65

Wiring:
red:power supply +
black:power supply -, measure -
white:measure +

Package Include:
1PCS Digital Voltmeter

Size 4
100% Brand New and High Quality
Color:Green.Red ,Blue.Yellow
Please leave an message on your order for which color ,or we will send randomly
Measuring range: AC 70V--500V
Input range: AC 70V-500V(Max Input: AC 500V. The device can be damaged if input is over 500V)
Display: 0.56 "digital tube
Measurement accuracy:1%
Refresh rate: about 200mS / times
Dimensions: 48×22×29mm
Operation Temp: -15degree--+70degree

Package Include:
1 pcs Digital Voltmeter(without bottom)