Designed for monitoring of oxygen and combustible, toxic and refrigerant gases in remote locations, Model OLCT 80 reduces installation costs by eliminating cabling and wiring. Up to 49 of the devices ― each of which has three built-in relays and a maximum line-of-sight range of 1.86 miles (3 km) ―can be linked via a secure network to monitor large remote areas. It can be used for ATEX 1 zones where wired systems would be difficult to install. Features include an infrared remote controller and on-board display; flameproof or intrinsic-safety sensors; and a design suitable for explosive areas.

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