Voltmeter/ Ammeter DC 0.00-33.0V/10A Dual LED Display (Red+Yellow)

Ammeter Voltmeter DC 0.00-33.0V/10A Dual LED Display (Red+Yellow): 

Display color: Red+Yellow

Display mode: Dual 0.28 LED digital tube

Update rate: About 500 ms/time

Physical size: 48 x 29 x 26 mm (L*W* H)

Opening size: 45 x 26 mm (L*W)

Supply voltage : 3.5-30V

Lead wire length: 14 cm(Five wires)

Measurement range: DC 0.00-9.99A(current) 0.00-33.0V(voltage)

Operation temperature:  -10 degrees~65 degrees

Measurement accuracy:± (1% + 2 digits)

Red thin wire (VCC): Power input+ 3.5-30V (NOTE: If the measuring signal is lower than 30V and have abundant power supply, it can be used as power supply for the module [black wire and yellow wire are contacted together to use]

Black thin wire(GND): Power input- Measurement signal - 3.5-30V

Yellow thin wire (VIN): Measurement signal+ (0-33.0V)

Red thick wire (I+): Current input+ (connect with load negative) 

Black thin wire(I-): Current input- (in series in power supply negative)

Voltage current meter with isolated power supply:

Calibration: