UCTRONICS 0.28 Inch Mini DC Voltmeter 2 Wires 2.5-30V LED Display Digital Voltage Tester Meter, 5 Colors
- Pack of 5: red (2.5-30V), yellow (2.5-30V), blue (3-30V), green (2.7-30V), white (3-30V), each color 1 piece.
- Mounting Hole Center Distance: 1.02” (26mm). Wire Length: about 6”.
- Can be calibrated: the screw on the back can be tuned to calibrate. Reverse Polarity Protected: it will not be burned when the connection is reverse.
- The decimal point shifts automatically: the meter shows two decimal places when measuring the voltage below 10V; it shows one decimal place for voltage above 10V.
- Note: the input voltage must not exceed 40V, otherwise there is a danger of burning!