AirLink 7530 Relayer for wireless gas detection by RKI Instruments

AirLink 7530 Wireless Relayer

Airlink 7530

32 Channel Wireless Relayer


  • 32 Channel wireless relays: Contains 3 relays that can be activated by up to 32 remote wireless sensors
  • Radio options: 900 MHz radio or 2.4 GHz Standard
  • 12 to 35 VDC operating voltage with optional AC power supply
  • Graphical LCD with LED backlight
  • Operating temperature range of -40ºC to +70ºC
  • Push button interface (ADD, MENU, SUB) with 3 corresponding magnetic, non intrusive switches
  • Programmable alarms
    3 Individually configurable alarm set-points: Set points – 3 red alarms
    3 LED red indicators
  • Output options: Wet contact fault DC fault terminal, relay 3 can optionally be configured as a fault relay
  • Optional strobe and horn attached
  • Aluminum explosion proof enclosure with Class I, Div. 1, Groups B, C & D certifications
  • 1 Year limited hardware warranty
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The AirLink 7530 XP Relayer is a 32-Channel Gas Alarm System with 3 Relays that can monitor up to 32 Wireless gas detectors simultaneously. Magnetic switches allow for non-intrusive system setting and diagnostics. Three relays can be configured to activate up to the full scale reading, and set to be either latching or non-latching. Housed in an explosion-proof enclosure for the safe and close-proximity installation of gas readings, alarm relays, and maintenance controls within hazardous locations.

The AirLink 7530 Relayer is also available as a non-explosion proof version.

Related Services

Fixed Systems Turnkey Solutions

  • Design, Consultations, and Engineering
  • Installation
  • Start-up
  • Training
  • System Maintenance


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


Product Type 32 Channel gas monitor
Operating Voltage 12V to 35V DC or 120V AC (optional)
Power Type Dual 3.6V / 19 Ah batteries
Current Draw 275 mA Maximum
Power Supply 3.13A (75W), 85/264V AC to 24V DC (optional)
RF Connection External N female radio frequency (RF) connector
Customizable Settings 3 Individually configurable alarm setpoints per channel

Option to disable alarm relays

Latching and non latching relay settings

Protection Power electromagnetic interference (EMI) filter
Display Screen 128 x 64 Resolution graphical LCD screen

transflective (sunlight readable) with LED backlight

Interface 3 Push buttons (Menu, ADD, and SUB)
Temperature Range -40°C to +70°C
Relays 3 Dry-contact common relays with 4 amp replaceable fuses fault terminal
Wireless (Digital) Input Up to 32 Wireless (Digital) sensor inputs
Product Compatibility All AirLink wireless transmitters
Wireless Radio Options 900 MHz radio

2.4 GHz radio

Networks 52 Networks (900 MHz radio)

78 Networks (2.4 GHz radio)

255 Addresses per network

Enclosure Materials Aluminum
Wiring Hub Supplied with one 3/4” conduit hub on bottom of housing.
Product Dimensions 8 in, L x 8 in. D x 4 in. H (Max. dimensions with attachments)
Total Weight 12.8 lbs
Hazardous Location Certifications and Approvals Class I, Groups B, C & D

Class II, Groups E, F & G

Hardware Warranty 1-Year limited
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