Model: HNAG900
Detection: Phosgene (COCL2)
Detection Principle: Electrochemical Sensor
Detection Range: 0-1 ppm / 0-10 ppm (Optional)
The HNAG900 portable phosgene gas detector is an industrial-grade safety device engineered for the real-time, highly accurate monitoring of highly toxic COCL2 leaks. Equipped with a robust 32-bit microprocessor and a highly sensitive electrochemical COCL2 sensor, this device delivers rapid response times (T90 < 10S) and exceptional repeatability. Housed in a durable IP65 and Ex ib ll CT4 Gb explosion-proof casing, it is the ultimate safety solution for chemical plants, pharmaceutical production, and hazardous material site inspections.

Unlike standard diffusion monitors, this pump suction gas monitor features an adjustable built-in pump. This allows operators to draw air samples from hard-to-reach areas, confined spaces, or deep pipelines without entering the danger zone. The standard kit includes a bendable 27cm metal sampling probe, ensuring precise pinpointing of phosgene leaks in complex industrial environments.

Monitoring highly toxic gases requires clear visibility under all conditions. The device is equipped with a vibrant 3.5-inch TFT color screen (480*320 resolution), displaying real-time concentrations, historical curves, and alarm statuses. With a massive internal memory capable of storing up to 100,000 data entries and 1,000 alarm records, safety managers can easily track exposure history. The adjustable storage interval (e.g., every 15 seconds) provides complete control over data granularity.


To enhance modern industrial safety protocols, this handheld phosgene analyzer supports advanced data transmission capabilities. Beyond the standard USB export to a computer, it can be customized with 4G/5G, LoRa P2P, or Bluetooth Tx. This enables seamless integration with central gas alarm controllers, mobile devices, or Bluetooth printers, ensuring that emergency response teams receive instant COCL2 leak alerts regardless of their location on the site.

Designed for continuous field operation, the detector is powered by a high-capacity 5400mAh rechargeable lithium battery, guaranteeing extended standby times. The entire system is securely packed in a premium aluminum alloy enclosure, providing maximum protection during transit to rugged environments like smelters, coal mines, or aerospace facilities.

A1: The HNAG900 model offers customizable ranges for Phosgene (COCL2), specifically 0-1 ppm and 0-10 ppm, with a high resolution of 0.001 ppm or 0.01 ppm depending on the configuration, ensuring trace leaks are detected instantly.
A2: It utilizes a premium electrochemical sensor. This technology provides high accuracy (±5% F.S.), minimal cross-interference, and a reliable service life of 1 to 3 years under normal industrial conditions.
A3: Yes. The device features an Ex ib ll CT4 Gb explosion-proof grade and an IP65 protection rating, making it entirely safe for use in petroleum, petrochemical, and chemical processing zones.
A4: Absolutely. The detector stores up to 100,000 data entries. You can easily connect the device to your PC via the included Mini-USB cable to export the data and generate comprehensive Excel safety reports.

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