... beautiful 2.water-proof design 3. high precision and stability 4.small size, light weight <1>Smith 2014-oval gear flow ... basic error: ± 0.2% ± 0.5% Nominal Path DN (mm): 4 ~ 300 Nominal pressure PN (MPa): stainless steel 1.0, 1 ... flow) 9999999.9 (instantaneous flow)Output signal: pulse signals, 4 ~ 20mA, 1-5V, 4 ~ 20mA +HART agreement, MODBUS Support RS232, RS485 communications ...