Stand alone gas monitoring
for commercial and light
industrial applications

The EC-Gold Dual is ideal for any size facility
where one or multiple gases need to be
monitored. More than 30 years of gas detection
experience has contributed to this highly
functional detector.

• one or two onboard sensors (ie. CO and NO2)
• two optional remote sensors (ie. toxic,
combustible, or any analog device)
• LCD display, buzzer, 3 relays, RS-485
communication, 4-20 mA output and a
keypad interface are standard
• ideal for maintenance garages, fire and
ambulance stations, service, storage and repair
bays, chiller rooms, factories and laboratories

The 4200-IG offers an intelligent solution for monitoring of toxic and combustible gases in ambient air. The central panel offers full user interface, control set-up and relay interlocks for ventilation control and gas leak alarms. • multiple sensor inputs • relays for ventilation, BAS and alarm interface • analog outputs for remote control and interface • simultaneous display of all sensor concentrations The standard 4200-IG can accept the analog input from any of the Arjay offered sensor transmitters, or can monitor any of your own. This monitor is ideal for industrial facilities, wastewater treatment plants, utilities, and any application where a full monitor and control station is required.

The 4200-IR offers an intelligent solution to monitor for refrigerant leaks in machinery chiller rooms. The central panel offers full user interface, control setup and relay interlocks for ventilation control and gas leak alarms. Sleek remote alarm panels for outside the room and point of source infrared sensors complete the package. • designed to CSA B52 and ASHRAE Std 15 guidelines • models available for up to 10 sensors • touch screen interface • relays for ventilation, BAS and boiler control • ventilation and chiller override switches included

The HLM 2000-TX gas transmitter is a 4-20 mA loop powered transmitter for monitoring toxic gases at ppm concentrations and oxygen levels in %. The sensing elements are gas selective electrochemical technology. The electronics are mounted directly at the sensor for ease of calibration and maintenance.

• explosion proof to CSA Standards

• compact integral electronics

• a variety of target gases available

The analog output, proportional to the calibration range of the target gas, can be interfaced to your own control system or can be supplied with the Arjay 4200-IG, EC-Gold Dual, or PG-2000 control panels.

The EC-Gold gas transmitter is part of the Arjay series of gas
detection instruments. This employs electro-
chemical sensors to target toxic gas or oxygen
concentrations in ambient air. The unique design
and flexible interface allows this transmitter to
be used with any of the Arjay controllers or
directly with your own site automation or
control system.

• multiple outputs and communications
• robust metal housing
• wide variety of sensor options

The on-board sensor continuously monitors the
ambient air by natural diffusion. The sensor
responds proportionally to the gas concentration
in the air. A signal is sent to the control panel or
system for ventilation or alarms.