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Overview

The RKI AirLink 6940 is a wireless ambient air multi-gas detector that runs up to four electrochemical, PID or low-power infrared sensors at once. The 6940XP is battery powered in an explosion proof housing; the 6940NXP is AC powered with a backup battery in a NEMA 4X fiberglass enclosure.

  • Up to 4 sensors in one wireless head: electrochemical toxics and O2, low-power infrared LEL or CO2, PID for VOCs
  • 6940XP: 3.6 V / 76 Ah battery pack, up to 6 months (2 weeks with a PID sensor), explosion proof, optional 2-wheeled cart
  • 6940NXP: AC powered with an integrated 3.6 V / 76 Ah backup battery pack, IP66 fiberglass enclosure with clear lid
  • 900 MHz or 2.4 GHz radio, 255 addresses per network
  • 160 x 104 graphic LCD, sunlight readable, with LED backlight
  • 4 push-buttons with 4 matching magnetic switches for non-intrusive calibration and diagnostics
  • Background gas setting adjustable for each sensor
  • Reports to the AirLink 7010 and AirLink 7032 controllers

Built to order: choose up to 4 sensors (gas and range), the 900 MHz or 2.4 GHz radio and options such as the 2-wheeled cart (XP). Request a quote for pricing and availability.

Specifications

Sensor Type
Electrochemical, PID and / or low-power infrared, up to 4 sensors
Sensor Options
CO 0-300 ppm / H2S 0-100 or 0-2,000 ppm / O2 0-25 % vol / LEL methane or hydrocarbon IR 0-100 % LEL / CO2 IR 0-1.5 % vol / NH3 0-100, 0-300 or 0-1,000 ppm / Cl2 0-10 ppm / ClO2 0-1 ppm / SO2 0-20 ppm / NO2 0-20 ppm / NO 0-250 ppm / HCN 0-30 ppm / HCl 0-30 ppm / HF 0-10 ppm / PH3 0-5 ppm / AsH3 0-1 ppm / F2 0-1 ppm / O3 0-5 ppm / EtO 0-10 ppm / H2 0-4 % vol / CH2O 0-10 ppm (NXP) / HBr 0-30 ppm (NXP) / PID VOC: 10.6 eV 0-10 to 0-2,000 ppm, 10.0 eV 0-10 to 0-100 ppm, 11.7 eV 0-100 ppm
Power (6940XP)
3.6 V / 76 Ah battery pack, non-rechargeable; up to 6 months (2 weeks if a PID sensor is used)
Power (6940NXP)
AC power supply with integrated 3.6 VDC / 76 Ah backup battery pack
Reporting (6940NXP)
Once a minute; every 5 seconds when a target gas exceeds the background level
Wireless Radio
900 MHz (200 mW) or 2.4 GHz (125 mW), 1 to 1.5 miles range
Networks
52 networks (900 MHz) or 78 networks (2.4 GHz), 255 addresses per network
RF Connection
External N-female RF connector
Display
160 x 104 graphic LCD, transflective (sunlight readable), LED backlight
Interface
4 push-buttons (MENU / BACK / ADD / SUB) + 4 magnetic non-intrusive switches
Operating Temperature
-40 to +60 °C
Enclosure (6940XP)
Main enclosure and sensor housing CQPSUS explosion / flame proof Class I Div 1 and 2 Groups B C D; NEMA 3, 4, 4X, 7 (B C D), 9 (E F G); certification applies to some gases only
Enclosure (6940NXP)
NEMA Class I, 4, 4X and 6 fiberglass enclosure with clear lid, IP66, UL 508 and UL 746C (f1)
Remote Sensor Kit (6940NXP, Optional)
Electrochemical up to 250 ft, low-power IR up to 40 ft, PID up to 35 ft of cable
Dimensions
6940XP 7 x 11 x 24 in / 6940NXP 5 x 10.5 x 20 in (D x W x H, max with attachments)
Weight (6940XP)
25 lb
Compatible Controllers
AirLink 7010, AirLink 7032
Warranty
1 year limited hardware; sensor warranty varies by sensor and is subject to factory verification; XP battery 90 days

Documents

In-house service

Calibration and repair

Send it to our Montreal service team. We evaluate the instrument and send a detailed quote before any work starts.

Start a service request

Parts & accessories

  • Price on quote

Questions, answered

How fast will I get a price?

Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.

Can we pay on account or by purchase order?

Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.

How is shipping charged?

On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).

Can I return it?

Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy

Can ERE calibrate or repair it?

Yes. Our Montréal service shop calibrates and repairs it in-house. Request service

What warranty does it carry?

The manufacturer's warranty applies. The exact terms are in the warranty document. Read the warranty

Since 1994Supplying labs and field crews
30,000+Customers across North America
AuthorizedBrand distributor
4 hrTypical quote turnaround