HD903 is a 4 3/4 digits AC/DC clamp meter with steady performance\safety and reliability. The clamp jaw is made of the high-quality steel products and high-quality magnetic induction components, big LCD display screen, full function and unit symbol display, wide measuring range. The instrument has a unique outline fully embodying the handheld characteristics and it is more convenient to operate.

 

The instrument applies high-performance A/D transformer, and all components are SMD-surfaced. Every range of the meter has overloading protection, not to damage.

 

AC/DC current is measured through the clamp jaw, but the rest is through test lead input and is auto ranging which can test AC voltage\DC votlge\Frequency\Duty\Resistance\Capacitance\Diode and Continuity.

 

The instrument has button of "DCA  0  ADJ" in order to return to zero before measuring big current.

 

Technic Specifications:
DC Current 400A
AC Current 400A 
AC Voltage 400mV/4/40/600V
DC Voltage 400mV/4/40/600V 
Resistance 40 MW
Capacitance 100uF
Frequency 10M Hz 
Duty 1%_100%

Max Display 4000
Range Selection Auto range
Switch Speed 3 times/sec
Polarity Display  Auto
Over range display "OL" 
Low battery display 
Diode/Continuity Test
Auto power off