Gas Detection Excellence

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About Arjay

Founded in 1983, specializes in capacitance controls for level, interface, and spill monitoring. With over 40 years of experience, the company is recognized for delivering innovative, high-quality solutions.

The company is committed to excellence across manufacturing, distribution, and service, with a focus on strong partnerships and continuous improvement to maintain a competitive edge..

EC-Gold

Toxic Gas/Oxygen Transmitter

Economical gas detection solution for commercial, residential, and light industrial applications. It uses electrochemical sensors to monitor toxic gases or oxygen levels in ambient air.

 

Designed for flexibility, it integrates with Arjay controllers or existing automation systems and features multiple outputs, robust metal housing, and a range of sensor options. The sensor continuously monitors air via natural diffusion and sends proportional signals for ventilation control or alarm activation.

click for key features:

Plug-in wiring terminal block for quick installation and maintenance

Multiple knockouts (top, bottom, back) for flexible installation

LED alarm status with flashing fault indication

External calibration port for easy test gas application

External push button for calibration (no need to open unit)

Protective aluminum housing with electronics filter screen

Manual push-to-test for fan and alarm interlock verification

Operating range: -20°C to +50°C, 5–90% RH (non-condensing)

RER SERIES

Reverse flow regenerative energy recovery ventilator that maximizes efficiency and reduces operating costs. It works reliably in temperatures down to -40°F/C without a defrost cycle, lowers CO₂ emissions, and reduces cooling and humidification loads. Ready-to-install and fast-delivery, it’s ideal for new construction or retrofit projects.

key features:

Energy recovery efficiency: 90% sensible, 87% latent, 89% total

Airflow: 3,000 to 18,000 CFM (9 models/sizes)

Indoor or outdoor installation

Single-side access configuration

Horizontal or vertical supply air openings

Galvanized steel exterior finish

Digital DDC controller with BACnet protocol

No field assembly required

key features:

Energy recovery efficiency: 90% sensible, 87% latent, 89% total

Airflow: 3,000 to 18,000 CFM (9 models/sizes)

Indoor or outdoor installation

Single-side access configuration

Horizontal or vertical supply air openings

Galvanized steel exterior finish

Digital DDC controller with BACnet protocol

No field assembly required

Custom Air Handlers

Units designed to combine advanced features such as heat recovery, precise temperature control, and energy-efficient operation. Built for ruggedness and long-lasting durability, they deliver reliable performance even in the most demanding environments, while their smart design ensures maintenance is simple and hassle-free. Each unit can be tailored to meet specific requirements, providing both flexibility and high performance for any application.
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