ZONEWU the methane transmitter designed by our company has strong safety, fast response speed, and strong anti-interference ability. After our company's unique compensation algorithm and multi-stage standard gas calibration, it also has the characteristics of long life, high precision, high repeatability, and high stability. Suitable for real-time monitoring of methane concentration in underground pipe galleries, underground parking lots, public toilets, garages, workshops, chemical plants, greenhouse farms, and other places. The device adopts a wide voltage 10-30V DC power supply, 485 signal output, standard ModBus RTU communication protocol, ModBus address can be set, baud rate can be changed, and the communication distance is up to 2000 meters.

This product is specially designed for the continuous online monitoring of residual chlorine in aqueous solutions. It is widely applied in drinking water treatment plants, canning factories, water distribution networks, swimming pools, cooling circulating water systems, and various water treatment projects, ensuring stable and reliable water quality detection.

The RS485 fluorescence chlorophyll sensor adopts advanced fluorescence technology and is designed specifically for online water quality monitoring. Built in self-cleaning brush head, effectively preventing biological attachment and achieving maintenance free long-term operation. Supports MODBUS-RTU protocol and can directly output chlorophyll-a concentration data. The IP68 protection level is suitable for freshwater, marine aquaculture, eutrophication monitoring of lakes and rivers, and water source warning. High precision 0-400ug/L range, plug and play, is an ideal choice for in-situ monitoring and environmental protection projects.