Nitrite Gas Detector

$2,170.00

Product Summary

The PureAire Nitrite Fixed Gas Detector provides continuous, accurate monitoring of nitrite-related vapors, such as those released from nitrous acid (HNO₂) or nitrite-based chemical reactions. Equipped with a specialized electrochemical sensor calibrated in parts-per-million (ppm), the system delivers real-time detection to ensure a safe working environment where nitrite compounds are present.

Nitrites are commonly used in water treatment, corrosion inhibition, chemical manufacturing, and laboratory research. When handled in vapor form or during processes involving acidic nitrite reactions, nitrous acid gas can form a toxic, potentially harmful vapor that can irritate the respiratory system and eyes. For this reason, reliable monitoring is essential in treatment plants, chemical processing areas, and research labs.

PureAire’s sensors are designed for long-term operation—up to 8 years in standard environments—and are rechargeable on-site with electrolyte, ensuring minimal maintenance and no need for frequent replacements.

For facilities dealing with nitrites or nitrous acid emissions, PureAire offers a robust, user-friendly gas detection solution to support health, safety, and regulatory compliance with confidence.

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 checkthe 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 Nitrite Fixed Gas Detector is a compact gas monitor that’s ideal for protecting workers from nitrite 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 Nitrite Fixed 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 Nitrite Fixed Gas Detector is the smart, renewable nitrite 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)
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</td>
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

Minimize maintenance. Maximize safety

The PureAire Nitrite Gas Detector is engineered for reliability and built with cost-saving in mind. Offering the lowest annual maintenance costs of any gas detection system on the market, this unit is the smart choice for operations that prioritize both safety and efficiency.

Unlike disposable sensor systems that require frequent (and costly) replacements, PureAire’s renewable nitrite sensors can be recharged in the field for a fraction of the cost—about 20% of what you’d spend on disposable sensors. Routine upkeep averages $70 per year, delivering hundreds in annual savings while keeping your team safe.

Effortless Stand-Alone Monitoring

Get up and running in minutes. The Nitrite Gas Detector functions as a stand-alone unit, making installation simple. Mount it near your risk zone, plug it into a standard 115VAC or 220VAC outlet, and begin monitoring instantly. Integrated LED alarm lights and a built-in horn provide instant on-site alerts, while alarm and fault relays allow you to trigger remote alarms or control systems as needed.

Smart, 24/7 Supervised Electronics

Enjoy round-the-clock peace of mind. PureAire’s smart electronics are continuously supervised 24/7, so if an issue occurs, your team is immediately alerted via analog output and fault relay signals. A dedicated microcontroller built directly into the sensor enables you to perform calibration and maintenance off-site—simply plug it back in when ready. Calibration data is securely stored and automatically transferred to the transmitter.

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