... they all have interfaces with air velocity transducer, temperature sensor, ectroirradiator. They are also equiped RS485(Modbus) port for ... or PLC.2. Charateristics1)Their measurement conponents are isolated Hall sensor; 2)They accept Positive and negative junction;3)With ... 3. With the interface with air velocity transducer, temperature sensor, ectroirradiator;4. Output DC24V to power external sensors;5 ...