These products are systems that are called self contained because they include a controller and one or two sensors in one package. One of the sensors can be mounted integrally, both can be mounted remotely, or a combination. There is alarm indication at the controller for each channel and some units offer an optional digital display of concentration. Two relay outputs are included which are used to activate ventilation fans or remote alarm lights or horns.

These systems can be ordered set up for 24 VDC or VAC, 120 VAC or 220 VAC power supplies.

Calibration and maintenance procedures are simple and can easily be performed in the field. Alarm setpoints are field adjustable.

A full selection of sensors is available to detect a wide range of gases for a variety of applications.