Hydrazine Gas Detector

$2,170.00

Product Summary

The PureAire Hydrazine Fixed Gas Detector is purpose-built for continuous monitoring of hydrazine (N₂H₄), a highly toxic and volatile compound widely used in aerospace and space propulsion systems. Featuring a dedicated electrochemical sensor calibrated in parts-per-million (ppm), the detector delivers precise, real-time detection to safeguard personnel working with or around hydrazine fuel systems.

Hydrazine is commonly used by NASA and commercial space programs as a liquid propellant for satellite thrusters, spacecraft maneuvering systems, and launch vehicle auxiliary power units. While effective, hydrazine is extremely hazardous, posing severe risks to human health through inhalation, skin contact, or fire in the event of a leak.

PureAire’s hydrazine sensors offer exceptional longevity—lasting up to 8 years under standard aerospace facility conditions—and can be easily recharged with on-site electrolyte replacement, minimizing downtime and maintenance effort.

For space agencies, defense contractors, and aerospace manufacturers, PureAire delivers a high-accuracy, mission-critical gas detection solution that supports safety and reliability in environments where hydrazine is handled or stored.

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 Hydrazine Gas Detector is a compact fixed gas monitor that’s ideal for protecting workers from toxic and corrosive gas exposure in the workplace. It consists of a transmitter/controller connected to a dedicated, renewable hydrazine gas sensor that automatically inputs the gas and measurement range. Designed as a stand-alone monitor, the Hydrazine 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 Hydrazine Gas Detector is the smart, renewable hydrazine sensor cell programmed with 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)
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

Reliable Protection with Minimal Operating Cost

Protect your people, facility, and profits with PureAire’s Hydrazine Gas Detector, which is engineered for maximum safety with the lowest maintenance cost in the industry.

With PureAire’s renewable sensor technology, the hydrazine sensor can be recharged directly in the field, eliminating the need for costly disposable replacements. With routine upkeep averaging just $70/year, you’ll save hundreds of dollars annually compared to traditional systems. It’s the smart, budget-friendly solution for continuous gas monitoring.

Effortless, Stand-Alone Operation

No complicated setup. Just mount the detector, plug it into any 115VAC or 220VAC outlet, and you’re ready to monitor hydrazine gas instantly.

Designed as a fully stand-alone unit, the detector features a built-in horn and LED alarms to immediately warn personnel of hazardous gas levels. For more advanced integration, it includes dedicated alarm and fault relays and a 4- 20mA analog output for continuous data streaming to PLC or SCADA systems.

24/7 Self-Monitoring

The Hydrazine Gas Detector is equipped with smart, self-supervising electronics that monitor system performance around the clock. Should an issue occur, the detector instantly triggers a fault signal and relays critical alerts to your control room, ensuring your team is always in the loop.

Maintenance is fast and simple. A dedicated microcontroller in the sensor allows you to remove it from the transmitter for calibration, then instantly transfer calibration data back once reconnected, keeping downtime to a minimum and performance at a maximum.

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