Fixed 4 in 1 Gas Detector with RS485, CO, H2S, O2 and Combustible Gas – GAOTek

Description Overview The GAOTek is a high-performance fixed multi-gas detector designed for industrial safety monitoring. It supports simultaneous detection of combustible gases, toxic gases, and oxygen using advanced catalytic combustion, infrared, semiconductor, or electrochemical sensors. With IP66 protection, explosion-proof design, and RS485 communication, it ensures reliable operation in harsh environments. Weighing only 3.5 kg (7.7 lbs), this detector is suitable for factories, refineries, chemical plants, and hazardous locations.   Features Real-time detection of combustible, toxic gases, and oxygen with high accuracy. High-brightness LED display with English menu for easy operation. Multiple signal outputs including RS485, 4–20mA, relay output. Explosion-proof Ex d ⅡC T6 Gb certification for hazardous environments. IP66 grade protection against dust and water. Built-in 2-level alarm to trigger fans or solenoid valves automatically. Remote control operation for ease of use and configuration. Advanced microprocessor control ensures stability and reliability. Supports 9600/4800/2400 baud rates with quick switching.   Technical Specifications Detection Gases Combustible Gas, Toxic Gas, Oxygen (4-in-1) Detection Principle Catalytic Combustion, Semiconductor, Electrochemical, Infrared, PID Detection Range 0–100%LEL / 0–30%VOL / 0–100PPM Minimum Reading 1%LEL / 0.1%VOL / 1PPM Alarm Mode LED Display Audible & Visual Alarm Alarm Levels 2-Level Alarm (High & Low) Explosion Proof Grade Ex d Ⅱ C T6 Gb Output Signal RS485, 4–20mA, Relay Output (COM, NO) Baud Rate 9600 / 4800 / 2400 (switchable) Communication Interface RS485 with 2KV photoelectric isolation, PowerBus Operating Temperature -40°C ~ 70°C (-40°F ~ 158°F) Operating Humidity 10%RH – 93%RH (non-condensing) Power Supply DC 24V (24–36VDC supported) Protection Grade IP66 (dustproof & waterproof)