we are offering air velocity sensor transmitters.with cable inbetween sensor and tx :selectable working range using jumper &accuracy at 20 degc (68f), 45 % rh and 1013hpa0.1ms (0.200ftmin) (0.04ms 7.9ftmin + 2 % of m. v.)0. 1.5ms (0.300ftmin) (0.05ms 9.8ftmin + 2 % of m. v.)0.2ms (0.400ftmin) (0.06ms 11.8ftmin + 2 % of m. v.) selectable output -: 0 - 10 v or 4 - 20 ma power supply - selv 24v acdc 20 % , probe length 200mm, no display