AR850A Ultrasonic Thickness (high temperature type)
  
Measuring range 1.2-225.0mm (Steel)
Measurement error of ± (1% ± 0.1) mm
Pipe measurement limit φ20 * 3mm (Steel)
Velocity adjustment range 1000-9999m / s
Operating frequency of 5MHz
Operating temperature range 0-300 ℃
Auto-zero calibration function √
Data storage function √
√ Auto Power Shut Off
Low-power direct 3V ± 0.2V
Power Supply 3 1.5V AAA alkaline batteries