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SIL-2 – Hardware assessed to be SIL-2 capable

Security mode allows for lockout of critical parameters

“Fault Supervision” circuitry

Programmable warm-up and cal delays to avoid false alarms


The OLCT 200 can be configured to meet nearly any application through its state-of-the art features and options.


Intrinsically Safe

HART® (opt)

RS-485 ModBus (opt)

Stainless Steel Enclosure (opt)

Programmable Relays (opt)

2-wire, 3-wire Installations

Wireless Communication (opt)

Cold Climate Heater (opt)

Dual Gas Sensing (opt)

Remote Sensing (opt)

Large Sensor Offering—Electrochemical, Catalytic, Infrared, and Photo Ionization Detection Sensors


The OLCT 200 is designed to offer the user convenient features and ease of use.

Smart Sensors

Large Graphical Display

30min Trending

Backlit LCD (excluding 2-wire)

Non-Intrusive Calibration

Split Screen Display (dual sensor option)

Visual Alarm LEDs


Wireless communication is becoming increasingly popular in gas detection, and it is sometimes the only way to ensure safety in existing infrastructure or remote locations. The OLCT 200 wireless option offers many benefits to meet your application needs.

900MHz or 2.4GHz FHSS

10mW – 1W Adjustable Tx Power

CSA Div 1 and Div 2 Antennas

256-bit Encryption

Indoor Range up to 3000’ (900 meters)

Outdoor Range up to 10 miles (16 km)

High Receiver Sensitivity

Battery & Solar Powered Options

We also offer a variety of wireless solutions compatible with the OLCT 200, including wireless controllers and solar-powered field monitors as well as wireless repeaters and accessories.

Detection of combustible and toxic gases and O2 Non-intrusive calibration Smart sensors -HART® Communication -Programmable relays -Hot Swappable sensors (IS Versions) -2-wire, 3-wire, ModBus -Available in stainless steel -Available in wireless version

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