1. Better than 1% accuracy
2. 0.2% of repeatability
3.2x10 English letters LCD display
4. Operate with clamp on transducers
5.Pipe diameters from 15mm to 6000mm
6. RS485 interface
7.Built-in thermal printer
8.Ni-MH battery operation of over 24 h
9.220VAC or 110VAC power supply