General Description:
HD921 is 3 1/2 digital clamp meter with steady performance\safety and reliability\full

function. The instrument has a unique and more attractive outline,molding is more beautiful

and convenient operation.
The instrument applies high-performance A/D transformer, all the components are SMD

surfaced. And all the range positions have overloading protection function,not easy to

damage.
AC current is measured through the clamp jaw, the rest input through the test lead, all

ranges are auto-ranging and can test AC Voltage\DC Voltage\Resistance\Diode and

continuity.
The meter has "SELECT/HOLD" key for function selection and reading\recordiang for the

users during the measurement.

Technic Specifications:
AC Current 2~20A /200~400A(Auto Range) 
AC Voltage 600V(Auto Range)
DC Voltage 600V(Auto Range) 
Resistance 20MW(Auto Range)
Max Display 1999
Range Selection Auto Range
Switch Speed 2.5_3 times/sec
Polarity  It display "-"for negative polarity input
Over Range Display 1
Data Hold
Low battery  
Continuity Test