Hydrogen Selenide Gas Detector

$2,170.00

Product Summary

The PureAire Hydrogen Selenide Fixed Gas Detector is engineered for continuous, real-time monitoring of hydrogen selenide (H₂Se) gas. Featuring a specialized electrochemical sensor calibrated in parts-per-million (ppm), this detector provides accurate and immediate detection to help prevent exposure in environments where H₂Se is used.

Hydrogen selenide is utilized in semiconductor fabrication, photovoltaic cell production, and advanced material synthesis, often in processes involving compound semiconductors like copper indium gallium selenide (CIGS). Due to its extreme toxicity and high reactivity, even small leaks pose serious risks—making gas detection essential in cleanrooms, process areas, and research labs.

PureAire’s hydrogen selenide sensors are built for long-term use—up to 8 years in controlled environments, and they are easily rechargeable on-site with electrolyte, reducing the need for frequent replacements or downtime.

For semiconductor and high-tech facilities working with H₂Se, PureAire delivers a robust, low-maintenance gas detection solution that supports process safety, regulatory compliance, and peace of mind.

Please note that because of the nature of this product, the lead time is typically 2-3 days but may be up to one week. We will make every effort to ship your order as soon as possible.

Gas Range

Clear

Transmitter connects to any PureAire toxic or corrosive gas sensor
Plug & play sensor sets the transmitter gas & measurement range
Dual-level user-adjustable alarm relays
4- 20mA analog output (Active)
Built-in horn & visual alarm LEDs
Electronics continuously check the sensor & system status
Low-cost, long-life renewable sensor
Quick, easy sensor calibration
Optional remote cable for monitoring up to 30 feet from the transmitter
Connects to PLC or SCADA controller
UL, CUL, and CE Approvals
24V DC Power supply included
Available without a built-in horn – 99065. Please contact PureAire for ordering information: 847-726-6000

The PureAire Hydrogen Selenide Gas Detector is a compact gas monitor that’s ideal for protecting workers from hydrogen selenide gas exposure in the workplace. It consists of a transmitter/controller connected to a dedicated, renewable gas sensor that automatically inputs the gas and measurement range. Designed as a stand-alone monitor, the Hydrogen Selenide Gas Detector can also be connected to any programmable logic controller or SCADA system. PureAire also manufactures toxic gas detectors with a remote sensor.

The heart of the Hydrogen Selenide Gas Detector system is a smart, renewable sensor cell programmed with hydrogen selenide gas and measurement range information. When servicing the sensors, they can be recharged with fresh electrolyte and dynamically gas-calibrated in the maintenance shop away from the transmitter.

Sampling Method	Diffusion. (Optional: sensor can be remote up to 30 feet from the transmitter)
Other Available Gases	ammonia, bromine, chlorine, fluorine, hydrogen bromide, hydrogen chloride, hydrogen cyanide, hydrogen fluoride, hydrides, hydrazine, nitrogen dioxide, phosphine, and sulfur dioxide. For additional gases not listed here, please contact PureAire.
Accuracy	± 10% of full scale
Operating Temperature	-25 to +122F (-32 to +50C)
Sensor Type	Renewable electrochemical self-checking sensor with built-in microprocessor
Sensor Life	3 to 8 years under normal conditions
Gas concentration indicator	Built-in LCD digital display, (backlit) Displays: Gas Name & ppm concentration, AL1, AL 2, System Fault messages.
Signal Outputs	4-20 mA analog output (Active), Dual Level Alarm Relay Contacts
Power Requirements	24 VDC, .25 amp Regulated power supply required
Dimensions	5.12(W) x 8.25 (H) x 3.20 (D) inches; (120 x 209 x 81 mm)
Weight	1.2 lbs. (.5 kg)
Enclosure	Polycarbonate UL listed general-purpose, Optional NEMA 4X, IP 65 water-resistant (only available without built-in horn)
Country of Origin	USA
Harmonized Tariff Code	8531.10.0045

Maximize Safety, Minimize Costs

The PureAire Hydrogen Selenide Gas Detector offers industry-leading low annual operating costs, making it the smart choice for long-term gas monitoring. Unlike costly disposable sensor systems, PureAire’s renewable hydrogen selenide sensors can be easily recharged with electrolyte in the field, cutting replacement costs by up to 80%. With routine maintenance supplies averaging just $70 per year, you’ll enjoy significant savings—hundreds of dollars annually—without compromising on performance.

Plug-and-Play, Stand-Alone Monitoring

Forget complicated setups. The Hydrogen Selenide Gas Detector is designed for simple, independent operation. Mount it near your hazard zone, plug it into any standard 115VAC 60 Hz or 220VAC 50 Hz outlet, and start monitoring. Its integrated horn and bright LED alarm indicators provide immediate alerts in case of dangerous gas levels. Plus, built-in alarm and fault relays enable easy integration with remote alarm systems or automated controls, and the 4–20mA analog output ensures continuous data flow to your SCADA or PLC systems.

24/7 Supervised Smart Technology

Equipped with continuously supervised smart electronics, this detector ensures round-the-clock protection. In the event of a system error, it instantly signals the control room via analog output and fault relay. A dedicated microcontroller in the sensor allows for off-unit calibration and maintenance, saving time and simplifying upkeep. Calibration data is automatically synced to the transmitter once reconnected, keeping your safety systems seamlessly in check.

Universal Gas Detector Literature

Universal Gas Detector Manual

Explosion-Proof EPU Gas Monitor Literature

Comparison PMS vs Disposable 1 pt

List of Gases We Can Detect