Continuous Monitoring Ammonia Gas Detector with IP66 IP68 and Electrochemical Sensor for Cold-Storage and Chemical Sites

The SG100 is a cost-effective, IECEx & ATEX-certified explosion-proof fixed online gas transmitter designed for continuous ammonia (NH3) monitoring. It uses an electrochemical sensor and offers multiple optional measuring ranges: 0-100 / 200 / 500 / 1000 / 2000 / 5000 ppm. Featuring IP66/IP68 ingress protection, an intelligent plug-and-play sensor module, multiple standard signal outputs, and optional wireless transmission, it also supports magnetic remote control. The SG100 simplifies field installation and routine maintenance while delivering reliable 24-hour continuous gas-concentration monitoring for refrigeration workshops, livestock farms, and chemical-industry facilities.

Ammonia (NH3) is a corrosive and toxic gas widely used as a refrigerant in cold-storage plants. It is also generated in livestock farms, wastewater-treatment, and chemical-manufacturing processes. Inhalation of high-concentration ammonia can severely irritate the human respiratory tract and mucous membranes. Continuous real-time monitoring effectively detects ammonia leakage and safeguards the occupational health of on-site personnel.

• Intelligent plug-and-play sensor module; calibration is supported via Safegas PC software for easy field replacement.
• IP66/IP68 enclosure supplied with a standard splash guard for damp and splashing-prone environments.
• Supports 2-wire / 3-wire 4-20 mA and RS485 Modbus, compatible with mainstream PLC / DCS control systems.
• Optional HART, LoRa, and 4G wireless modules for remote data viewing and downloading.
• Optional 3-relay assembly to trigger external alarm lamps, horns, and ventilation-interlock equipment.
• Magnetic non-contact operation for safe parameter configuration within hazardous-area zones.
• Standard mounting bracket included for quick wall-mount installation.
• Multiple housing-material options to adapt to different corrosive-level working conditions.

• Industrial ammonia-refrigeration cold-storage leak monitoring
• Livestock-farm barn ammonia-concentration real-time supervision
• Wastewater-treatment-plant ammonia-gas safety inspection
• Chemical-plant ammonia-process-area continuous detection
• Fertilizer-manufacturing-workshop toxic-gas early warning
• Food-processing-plant refrigeration-system safety monitoring

Shenzhen YuanTe Technology operates under the Safegas brand and was founded in 2010. We focus on gas-detection solutions for the pharmaceutical, medical-sterilization, petrochemical, and underground-works sectors. Our R&D team specializes in pump-suction sampling technology for confined-space inspection. In addition to portable instruments, we provide application consulting for occupational-health monitoring in disinfection and sterilization scenarios. Production activities are managed under ISO9001 and ISO45001 systems. Our instruments are certified with IECEx, ATEX, and EMC, serving medical-equipment manufacturers, sterilization service providers, and engineering contractors across global markets.

• Established since 2010 — Over 16 years of experience in gas-detection R&D and manufacturing.
• Full product range — Portable detectors, fixed transmitters, analyzers, control panels, and accessories.
• International certifications — IECEx, ATEX, and EMC certified for hazardous areas.
• Wide gas & industry coverage — Hundreds of gases; serving oil & gas, chemical, mining, environmental, food, pharma, and more.
• Strong R&D & quality — ISO9001 & ISO45001 certified; professional R&D team and global service network.
• High production capacity — Over 80,000 units per year with fast delivery (typically 5-7 working days).
• Global customer support — 24/7 after-sales service and solutions tailored to diverse industries.