digital panel meter 

feature

1.current watchcase, volume delicate

2.measuring precision, performances reliable

3.using SCM function with high anti-interference

4.ULF testing tachometer (15 times/min)

5.backup data for power fail, keeping data 10 years

6.counld be counting, speeding, frequency working in the same time, each data without interference, exchange meter just, getting difference display, exchange meter just, getting difference display