It is a 2in1 Digital Meter/Digital Voltmeter Ammeter/Tester, Measuring Voltage Range: DC 4~30.0V (Can Measure Power Supply Directly), Measuring Current Range: 0~2.00A, Application: industrial equipments,electronic equipment, Power distribution box, distribution cabinet, regulators, teaching aids, household small distribution box, Storage Battery Car  and All kinds Voltage Current Measuring.

• Cutting Size: 45.5mm x 26.5mm
• Dimensions: 48mm x 29mm x 21mm
• Measuring Voltage Range: DC 4~30.0V (Can Measure Power Supply Directly)
• Measuring Current Range: 0~9.99A
• Display: 0.36" LED digital tube
• Display color: Red
• Refresh rate: about 500ms /
• Measurement accuracy: ± 1% +1 Digit
• Application: industrial equipments,electronic equipment, Power distribution box, distribution cabinet, regulators, teaching aids, household small distribution box, Storage Battery Car  and All kinds Voltage Current Measuring.

• IN +: Power Supply Input +, IN -: Power Supply Input - (4-30V)
• OUT +: Power Supply Output +, OUT -: Power Supply Output - (4-30V)

• Voltmeter mode: Boot default display voltmeter mode **. * U
• Ammeter mode: press the switch to the ammeter mode display *.**A
• Voltmeter Ammeter mode: pressing the switch again to voltmeter ammeter alternating 4 Seconds cycle mode (pressing switch again to return to the voltmeter mode)

• 1 x Digital Voltmeter Ammeter ( 2in1 Digital Tester )