SL1188P Portable Ultrasonic Flowmeter Installation method: Portable 1G SD card high memory data logging, maximum memorize 512 days data. Flow Range:0~ ±40 ft/s (0 ~ ±12 m/s) Accuracy: ±0.5% (±1.6ft/s~±16ft/s) (±0.5m/s~±5m/s) Repeatability: 0.15% Output: 4-20mA Communication: Bluetooth wireless Internal lithium power supply: 8hours Pipe size range: 1″~200″(25mm~5000mm) Display: TPC, touch screen Transducer: IP68, P magnet portable transducer, 5m cable