Turbine Flow Meter Accuracy: Instantaneous rate: 0.5% of reading Total rate: 0.1% of reading Ambient temperature limits: -20 to 60 degree Centigrade Process temperature limits: -20 to 120 degree Centigrade Ambient humidity limits : 5 to 95% R.H Case material: aluminum alloy Power supply:3.6Vlithium battery (life for 1 year). The meter will be into sleep mode when no signal for 1 minute. It will be awoked once appear signal. Display: 6 digits LCD and engineering units % display mode; Display in engineering unit mode; Totalized flow display mode; Alternate % flow rate and totalized flow display mode; Alternate flow rate in engineering unit and totalized Instantaneous flowrate (engineering unit) and totalized flow display mode, Alternate instantaneous flowrates (in engineering unit Instantaneous flowrates in engineering unit and in % and %) display mode Non-volatilization: Keep the data in memory when power off Correction error: Correct the instrumental error in flowmeter characteristics using 1 line-segment approximation (with five correction factors). Enclosure classification : IP65 Electrical classification: NEPSI EExd IIBT4