Industrial 4-20mA Output Duct Humidity and Temperature Transmitter for HVAC

A: We are a professional manufacturer founded in 1992, with our own R&D center, production factory and QC laboratory. We specialize in environmental sensing instruments including humidity & temperature sensors, water quality analyzers and disinfectant detection devices. All products are independently developed and produced by our factory.

A: Our factory is located in Dalian, China. Warmly welcome customers from all over the world to visit our factory and R&D center. Please contact our sales team in advance to arrange the visit schedule.

A: Yes, we are ISO9001 certified. All production processes and quality management systems strictly follow ISO9001 standards. Every product undergoes 100% full inspection before delivery.

A: Our main product lines include: Humidity & temperature probes, sensors and transmitters Flue gas humidity analyzers Water quality sensors & analyzers (turbidity, conductivity, pH, DO, etc.) German-made disinfectant sensors & analyzers

A: We have a complete quality control system: 100% full-process inspection for all outgoing products Professional testing laboratory with complete testing equipment Experienced QC team covering safety regulation, durability, applicability and stability tests Full factory calibration before shipment