1.Better than 1% accuracy 2. 0.2% of repeatability 3. 4¡á16 english letters lcd display 4. Operate with clamp on transducers 5 rs 232 interface or 1-channel isolated oct output 6. Pipe diameters from 15mm to 6000mm 7. Ni-mh battery operation of over 12 h 8.90~230vac power supply 9. Internal data logger 10. Bilingual interface in chinese and englis. 1setone carton
