AirLink 6900


The RKI AirLink 6900 is a versatile truly wire free transmitter using electrochemical, PID or low-power infrared sensor elements to detect a variety of gases. Wireless, dual battery power (3.6 V Lithium-Thionyl Chloride battery) with 900 MHZ or 2.4 GHz radio options. Magnetic switches allow for non-intrusive calibration as well as full system settings and diagnostics, while in the field.

The AirLink 6900 Gas Detector represents the latest leading edge wireless technology in fixed gas detection today.


Electrochemical, PID, or IR sensors
Wireless communication
900 MHz radio and 52 networks
2.4 GHz radio and 78 networks
Dual battery powered
Battery life
2-year max – electrochemical sensors
1-year max low-power infrared sensors
Graphical LCD with LED backlight, readable in sunlight
3 Push-button interface (ADD, MENU, SUB) with corresponding magnetic, non-intrusive switches
Explosion/flame-proof certification for select gases
1-Year warranty
Optional remote-mount sensor kit with enclosure


Petrochemical plants
Water & wastewater treatment plants
Pulp & paper mills
Manufacturing facilities
Chemical plants
Temporary or permanent applications



General Specifications

Product Specifications
Sensor TypeElectrochemical, PID or low-power infrared sensor
Operating Voltage3.6V (19 Ah each, 38 Ah total) Lithium-Thionyl (Li-SOCl2) battery, with connector (non-rechargeable)
Power TypeDual battery powered
Battery Life1 Year Max. (low power infrared), 2 year Max. (electrochemical), 14+ days (PID)
RF ConnectionExternal N-female radio frequency (RF) connector
Display Screen102×64 Resolution graphical LCD screen transflective (sunlight readable) with LED backlight
Interface3 Push-buttons (MENU, ADD and SUB) 3 Magnetic non-intrusive switches for calibration (MENU, ADD and SUB)
Customizable SettingsAdjustable background gas setting
Temperature Range-40°C to +54°C
Wireless Radio Options900 MHz (200 mW) radio (1-1.5 miles range) or 2.4 GHz (125 mW) radio (1-1.5 miles range)
Networks52 Networks (900 MHz radio) or 78 networks (2.4 GHz radio) 255 addresses per network
Remote Sensor Kit (optional)Remote sensor kit available with enclosure (7 pin), available in lengths of up to 250 feet for (PID) and electrochemical and lengths of up to 40 feet for low power IR
Product Dimensions5.42 in. L x 6.03 in. D x 17.03 in. H (Max. dimensions with attachments)
Total Weight6 lbs.
Main EnclosureCertified explosion / flame proof CQPSUS Class I, Division 1 & 2, Groups B, C & D Nema 3, 4, 4X, 7 (B, C, D) 9 (E, F, G) Temp.= -20°C to +60°C
Sensor HousingCertified explosion / flame proof CQPSUS Class I, Division 1 & 2, Groups B, C & D Temp.= -40°C to +60°C Note: Certification only applies to some gases. Toxic gases not certified for Div. 1 locations are suitable for Div. 2 applications but have no third party approval.
ControllersCompatible with AirLink 7010 and AirLink 7032
Warranty1-Year warranty for electronics and sensor (Two months for PID with 11.7 eV lamp)
Battery Warranty90 days from ship date

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