Model: HNAG1000
Detection: Ethylene Oxide (C2H4O)
Detection Principle: Electrochemical, Infrared NDIR
Detection Range: 0-10 (100) ppm, 0-100 (500) / 500 (1000) ppm, 0-30%, 50%, 100% vol, 0-1000 (2000) ppm, 0-5000 (10000) ppm
Ensure maximum workplace safety with our state-of-the-art split ethylene oxide gas detector, designed for precise, real-time monitoring of EO gas leaks in demanding industrial environments. Utilizing advanced electrochemical and infrared NDIR detection principles, this unit delivers exceptional accuracy, rapid response times, and long-term stability.

Engineered to cater to diverse industrial requirements, the detector offers versatile measurement ranges including 0-10 (100) ppm, 0-100 (500)/500 (1000) ppm, 0-30%, 50%, 100% vol, 0-1000 (2000) ppm, and 0-5000 (10000) ppm. It features a robust die-cast aluminum housing and a 2.5-inch high-definition color LCD screen displaying real-time gas concentration, temperature, and humidity.

The system's split design separates the display host from the detection probe via a customizable connection cable (up to 5-10 meters or longer), allowing flexible installation in hazardous areas. It supports multiple signal outputs including 4-20mA, RS485 (MODBUS-RTU), wireless options (LORA, ZigBee, 4G), and 1 set of passive contact relay outputs for seamless integration with PLCs, DCS, and ventilation fans.


Built with an Ex d IIC T6 explosion-proof rating and IP66 water and dust protection, the detector operates reliably under harsh conditions ranging from -20°C to 50°C. It is widely applied in medical sterilization workshops, pharmaceutical manufacturing, chemical plants, scientific research laboratories, and hazardous site safety protection.

The detector provides continuous, real-time monitoring and early warning of ethylene oxide gas concentrations and leaks, triggering local audio-visual alarms and linking external safety equipment like exhaust fans or solenoid valves via relay outputs.
The split configuration allows the sensor probe to be placed directly in hazardous or hard-to-reach sampling zones (with custom cable lengths), while the main display unit can be mounted in a safer, easily accessible location for monitoring and infrared remote calibration.
Thanks to the modular plug-and-play design, individual components like the gas detection probe can be replaced independently without scrapping the entire unit, saving maintenance time and operational expenses.

The HNAG800-F2 Preprocessing Online Monitoring System provides real-time Fluorine detection. Featuring a precise electrochemical sensor within a robust stainless steel enclosure, it ensures rapid response and high safety in harsh environments.

The HNAG800-HBR/HCL Preprocessing Online Monitoring System provides real-time Hydrogen Bromide and Hydrogen Chloride detection. Featuring a precise electrochemical sensor in a stainless steel enclosure, it ensures rapid response and industrial safety.

The HNAG800-HCN Preprocessing Online Monitoring System delivers real-time Hydrogen Cyanide detection. Featuring a highly sensitive electrochemical sensor, it ensures rapid response, high accuracy, and explosion-proof safety within a rugged stainless steel enclosure.

The HNAG800-NO Preprocessing Online Monitoring System delivers real-time Nitric Oxide detection. Featuring an advanced electrochemical sensor for atmospheric monitoring, it ensures rapid response and high precision in a rugged stainless steel enclosure.

The HNAG900-NH3 Preprocessing Online Monitoring System delivers real-time, accurate ammonia detection. Engineered with electrochemical and thermal conduction sensors in a robust stainless steel enclosure, it ensures rapid response and safety in harsh industrial environments.

The HNAG800-SO2 Preprocessing Online Monitoring System delivers real-time Sulfur Dioxide detection. Featuring an advanced electrochemical sensor for flue gas, it ensures rapid response and high precision in a rugged stainless steel enclosure.

The HNAG1000-NO2 Preprocessing Online Monitoring System provides real-time Nitrogen Dioxide detection. Engineered with an electrochemical sensor for flue gas applications and housed in robust stainless steel, it guarantees rapid response and industrial safety.

The HNAG1000-CO fixed CO gas detector ensures real-time carbon monoxide monitoring. Featuring an electrochemical sensor, explosion-proof design, and 4-20mA/RS485 outputs, it guarantees safety in industrial plants.

The HNAG900 VOC gas detector offers precise real-time monitoring of volatile organic compounds. Powered by electrochemical/PID sensors and adjustable pump suction, it features a 3.5-inch TFT screen, USB export, and Ex ib II CT4 Gb rating.

The fixed C2H4O gas detector (HNAG1000) provides real-time, accurate ethylene oxide monitoring (0-100 ppm). Featuring a precise electrochemical sensor, robust aluminum alloy housing, and IP66 protection, it ensures ultimate industrial safety.

Portable HNAG920 H2SO4 Gas Detector offers dual pump-suction and diffusion sampling. With a precision electrochemical sensor, 2.0-inch LCD, and durable PC+TPU housing, it ensures rapid, accurate sulfuric acid monitoring for safety.

The HNAG920-3H portable 3-in-1 gas detector monitors CH4, C3H8, and H2. Featuring integrated pump-suction and diffusion modes, a 180° auto-rotating screen, and wireless transmission, it provides superior safety in complex environments.

The HNAG1000-O3 fixed gas detector provides real-time, highly accurate ozone (O3) monitoring. Featuring an advanced electrochemical sensor, Ex d IIC T6 rating, and 4-20mA/RS485 outputs, it ensures maximum safety in demanding industrial environments.

The HNAG920-PH3 portable gas detector offers precise real-time phosphine monitoring. Featuring a dual pump-suction and diffusion design, 2.0-inch auto-rotating screen, and wireless data export, it ensures maximum safety in hazardous environments.

The HNAG1000-H2S is an industrial fixed hydrogen sulfide (H2S) gas detector featuring a rugged stainless steel enclosure. Equipped with a precise electrochemical sensor, it delivers real-time monitoring, multi-signal output, and IP66 protection.

The HNAG920-5H portable 5-in-1 gas detector supports both pump suction and diffusion modes. It monitors O2, H2S, CO2, CO, and N2 simultaneously with high accuracy, featuring wireless transmission, a 180° auto-rotating screen, and a durable PC+TPU housing.

The HNAG800-O3 Preprocessing Online Monitoring System provides real-time Ozone detection. Featuring an advanced electrochemical sensor in a stainless steel enclosure, it ensures rapid response and high precision for strict industrial safety.

The HNAG800-CLO2 Preprocessing Online Monitoring System delivers real-time Chlorine Dioxide detection. Featuring a highly sensitive electrochemical sensor, it ensures rapid response and high accuracy within a rugged stainless steel enclosure for strict industrial safety.

The HNAG800-CL2 Preprocessing Online Monitoring System delivers real-time Chlorine gas detection. Featuring a highly sensitive electrochemical sensor, it ensures rapid response and high accuracy within a rugged stainless steel enclosure for strict industrial safety.

The HNAG800-HF Preprocessing Online Monitoring System delivers real-time Hydrogen Fluoride detection. Featuring a highly sensitive electrochemical sensor, it ensures rapid response and high accuracy within a rugged stainless steel enclosure for robust industrial safety.

The HNAG800-F2 Preprocessing Online Monitoring System provides real-time Fluorine detection. Featuring a precise electrochemical sensor within a robust stainless steel enclosure, it ensures rapid response and high safety in harsh environments.

The HNAG800-HBR/HCL Preprocessing Online Monitoring System provides real-time Hydrogen Bromide and Hydrogen Chloride detection. Featuring a precise electrochemical sensor in a stainless steel enclosure, it ensures rapid response and industrial safety.

The HNAG800-HCN Preprocessing Online Monitoring System delivers real-time Hydrogen Cyanide detection. Featuring a highly sensitive electrochemical sensor, it ensures rapid response, high accuracy, and explosion-proof safety within a rugged stainless steel enclosure.

The HNAG800-NO Preprocessing Online Monitoring System delivers real-time Nitric Oxide detection. Featuring an advanced electrochemical sensor for atmospheric monitoring, it ensures rapid response and high precision in a rugged stainless steel enclosure.

The HNAG900-NH3 Preprocessing Online Monitoring System delivers real-time, accurate ammonia detection. Engineered with electrochemical and thermal conduction sensors in a robust stainless steel enclosure, it ensures rapid response and safety in harsh industrial environments.

The HNAG800-SO2 Preprocessing Online Monitoring System delivers real-time Sulfur Dioxide detection. Featuring an advanced electrochemical sensor for flue gas, it ensures rapid response and high precision in a rugged stainless steel enclosure.

The HNAG1000-NO2 Preprocessing Online Monitoring System provides real-time Nitrogen Dioxide detection. Engineered with an electrochemical sensor for flue gas applications and housed in robust stainless steel, it guarantees rapid response and industrial safety.

The HNAG1000-CO fixed CO gas detector ensures real-time carbon monoxide monitoring. Featuring an electrochemical sensor, explosion-proof design, and 4-20mA/RS485 outputs, it guarantees safety in industrial plants.

The HNAG900 VOC gas detector offers precise real-time monitoring of volatile organic compounds. Powered by electrochemical/PID sensors and adjustable pump suction, it features a 3.5-inch TFT screen, USB export, and Ex ib II CT4 Gb rating.

The fixed C2H4O gas detector (HNAG1000) provides real-time, accurate ethylene oxide monitoring (0-100 ppm). Featuring a precise electrochemical sensor, robust aluminum alloy housing, and IP66 protection, it ensures ultimate industrial safety.

Portable HNAG920 H2SO4 Gas Detector offers dual pump-suction and diffusion sampling. With a precision electrochemical sensor, 2.0-inch LCD, and durable PC+TPU housing, it ensures rapid, accurate sulfuric acid monitoring for safety.

The HNAG920-3H portable 3-in-1 gas detector monitors CH4, C3H8, and H2. Featuring integrated pump-suction and diffusion modes, a 180° auto-rotating screen, and wireless transmission, it provides superior safety in complex environments.

The HNAG1000-O3 fixed gas detector provides real-time, highly accurate ozone (O3) monitoring. Featuring an advanced electrochemical sensor, Ex d IIC T6 rating, and 4-20mA/RS485 outputs, it ensures maximum safety in demanding industrial environments.

The HNAG920-PH3 portable gas detector offers precise real-time phosphine monitoring. Featuring a dual pump-suction and diffusion design, 2.0-inch auto-rotating screen, and wireless data export, it ensures maximum safety in hazardous environments.