This product is a digital sensor that integrates electronic circuits and microprocessors inside the sensor, referred to as a digital electrode. It is widely used in pH monitoring in water quality treatment, hydrological monitoring, wastewater treatment, swimming pools, fish ponds, and fertilizers, chemicals, biology, and other fields. FEATURES • RS485 transmission interface, MODBUS RTU communication protocol, two-way communication • Power supply and output isolation design to ensure electrical safety • Built-in protection circuit to enhance anti-interference ability to adapt to complex environments • The communication protocol is simple and easy to use, and can output more electrode diagnostic information,making it more intelligent • Low-power design to cope with more usage scenarios, and the internal memory can save calibration and setting information in the event of a power failure.