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Smart hydrogen (H2) detector EVIKON E2639 with a 0–100% LEL H2 range. Durable IP65-rated enclosure, 3 relays, RS485 Modbus communication, and built-in LED/audible alarm. More information
Out of stock - can be requested
| Detector type | Stationary |
| Equipment | Siren 85dB, LED |
| IP Rating | IP 65 |
| Output signal | ModBus RS485, 3x SPDT relay, 2x Analogue output 4-20mA |
| Power Supply | 14...36 VDC |
| Type of gas | H2-Hydrogen |
| Weight | 0.50 kg |
Evikon E2639-H2 is a detector designed for monitoring high concentrations of hydrogen in the air. The device is equipped with a temperature-compensated sensor that ensures reliable detection and stable measurement, and it is housed in a wall-mounted enclosure with IP65 protection. The E2639 features three SPDT relays with a maximum load of 250 VAC 5 A. Two relays are used for so-called two-stage detection. The third relay indicates a sensor fault. Communication with higher-level systems is provided by the RS485 Modbus RTU digital interface, complemented by two 4–20 mA analogue outputs. In addition, the device includes four LEDs and an audible alarm to immediately alert operators to any exceedance of the set limit directly at the installation site – without the need to monitor a remote control system.
The E2639-LEL(H2) detector is designed for monitoring hydrogen in industrial and commercial environments such as battery charging rooms, server rooms, gas storage facilities, H2 filling stations, or other areas where flammable gases are handled. The device is used for the early detection of hazardous hydrogen concentrations, helping to ensure equipment safety and minimise the risk of fire or explosion.
Hydrogen is the lightest and most abundant element in the universe, characterised by high energy density and clean combustion. When used as a fuel, it produces only water, making it an environmentally friendly alternative to fossil fuels. Hydrogen is often used in fuel cells, which generate electricity to power vehicles or supply various devices.
The E2639 detector combines the advantages of an autonomous safety device and an intelligent communication node. It is designed for seamless integration with fire alarm systems (FAS) and offers a wide range of outputs for comprehensive control:
The E2639 is equipped with three M20 cable glands and a dual terminal block for Modbus RTU. The duplicated Modbus RTU terminals simplify and speed up bus wiring for data readout to a higher-level system. No more inserting two conductors into a single terminal. Thanks to the M20 cable glands, all required outputs can be connected conveniently.
Factory settings:
Each detector package includes the manufacturer’s original calibration certificate in English, confirming the accuracy and correctness of measurement at the time of leaving the factory.
We respond to your product queries as quickly as possible, usually within 24 hours.
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