T2A Gas Detector


The T2A Series Toxic Gas Detector is a versatile assembly that uses an electrochemical sensor to detect a variety of gases. 2-Wire Loop-Powered to withstand extreme climatic conditions and harsh environments. Magnetic switches allow for non-intrusive calibration while in the field.

The T2A represents the latest leading edge technology in fixed gas detection today.


Electrochemical Sensor
Loop-Powered (2-Wired), 4-20 mA output
3 Character, 7 segment display screen with backlight
3 Push-button interface (ADD, MENU, SUB) with corresponding magnetic, non-intrusive switches
Operating temperature range -40° C to +60°C
Aluminum device enclosure
303 Stainless-steel sensor housing
1-Year warranty


Petrochemical plants
Water & wastewater treatment plants
Pulp & paper mills
Manufacturing facilities
Semiconductor plants
Chemical plants



General Specifications

Product Specifications
Sensor TypeElectrochemical
Operating Voltage12V to 35 VDC
Power TypeLoop-powered (2-Wire)
Current Draw35 mA maximum
Display Screen3 Character, 7 segment display screen with backlight
Interface3 Push-buttons (MENU, ADD and SUB) 3 Magnetic non-intrusive switches for calibration
Temperature Range-40°C to +60°C (-40°F to +140°F)
Wired (Analog) Output4-20 mA (2-Wire)
Enclosure MaterialsAluminum device enclosure 303 stainless-steel sensor housing
Product MountingWall mount (included)
ApprovalsQPS Component Certified Explosion-proof
Product Dimensions5.42 in, L x 6.03 in. W x 7.03 in. H (8 in. W x 17 in. Max. dimensions with attachments)
Total Weight5.75 lbs.
ControllersCompatible with all RKI Beacon controllers, as well as most DCS / PLC systems: Beacon 110, Beacon 200, Beacon 410A and Beacon 800
Sensor Element Warranty1-Year warranty for electronics and sensor

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