turbine flowmeter(gas flowmeter, speed flow meter) LWGQ gas turbine flowmeter is high accuracy meter which can be widely used in the fields of air,natural gas etc... Low pressure loss Hi-accuracy popularly: +/-1.0% Special calibrated: +/-0.5% Low velocity: Min velocity of flow should be less than 1.5m/s Compensation with temperature and pressure compensation With lubricated system LCD display. Pulse or 4 20mA DC. Caliber: 15mm 300mm.