Handheld Ultrasonic Flow Meter DN50 To DN700 Ultrasonic Flow Tester with M2 Sensor for Seawater Sewage 100‑240V Item Type: Handheld Ultrasonic Flow Meter Material: ABS Battery: 1.2V AA rechargeable lithium battery x 3 2300mAH (built in) Measurement Caliber Range: DN50-DN700 Linear: 0.5% Repeatability: 0.2% Accuracy: ±1% of the indicated value, flow rate >0.2m/s Response Time: 0-999 seconds, user selectable Flow Rate Range: ±32m/s Pipe Section Size: 20-6000mm Accumulator: 7 bit positive, negative, and net accumulator Liquid Type: Various liquids Security: Set value locking, data changes need to be unlocked Display: 4 x 8 Chinese or 4 x 16 English Communication Interface: RS-232, baud rate 75-57600, compatible with for Fuji ultrasonic flow meter, and also compatible with other products according er requirements Sensor Cable: Standard is 5m x 2, can also be extended to 10m x 2 Data Recording: The built in data recorder can record 2000 rows of data Manual Accumulator: 7 bit, press button to start calibration