isplay,controller and sensing element. The user can set the flow range and the warning signal discretionarily via the pushbuttons. The display is included 10 LEDs flow rate indicator. Longer reliability without mechanical moving part. Sensing medium: air, liquid Liquid flow range:3...300cm/s Gas flow range: 200...3000 cm/s Temperature range:-25...80 deg C Output: Switching (NPN/PNP NO/NC), Analog (4-20mA),Relay Display: LED Power protection: overload, short-circuit, Reverse polarity Probe material: Stainless Steel 316 Protection classification: IP67