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900MHz RF

AirQ Scout

The AIRQ Scout is a modular, wireless gas detection device featuring integrated 900MHz RF communication for transmitting gas measurements to a SignalFire Gateway or RANGER900. Ideal for methane emissions monitoring. Data is relayed to supervisory systems via Modbus or to the SignalFire Cloud through LTE-M CAT M1 / NB-IoT when using the RANGER900. Powered by a built-in 72Ah battery, it employs advanced smart gas sensor technology for low power consumption, high accuracy, and long-term stability with minimal calibration. The sensor also compensates for temperature and humidity to ensure reliable, low-drift measurements and extended battery life.

Technical Specifications

Physical Specifications:

  • Dimensions: 7.5″ x3″ (19cm x 7.62cm) – Without L shaped bracket
  • Weight: 2 Lbs (0.9Kg)
  • Housing Material: Industrial polycarbonate UV rated
  • Enclosure Protection: IP67
  • Mechanical installation: L-Shape bracket with u-bolt

Electrical Specifications:

  • Input Power: 72Ah four (4) D cell lithium battery pack. Field replaceable.
  • Battery Life: 15 months in Continuous Sampling Mode. 44 months in Emissions Mode (Sampling @ 15 min).
    48 months in Emissions Mode (Sampling @ 30 min)
  • Local Configuration: 4-Pin serial configuration port. Requires SignalFire USB-4pin cable

Environmental:

  • Ambient Operating Temperature: -40 to +167°F (-40°C to 75°C)
  • Humidity: 0% – 99% non-condensing

Communications:

  • Data Transmission: Report interval 5 seconds to 2 hours.
    Configurable measurement threshold to report on exception.
    Configurable sampling as fast as every 5 seconds.
  • Data Interface: Requires SignalFire’s Gateway. Output of Gateway supports Modbus RTU, TCP, Ethernet/ IP (Pending), MQTT/
    Sparkplug (Pending)
  • RF Radio Power: 40mW
  • RF Distance: 0.5 mile (800 meters)
  • RF Band: 902–928 MHz, FHSS, license-free ISM Band
  • Antenna: Internal Omni-directional Antenna

Gas Sensor:

  • CH4 Methane
    • Detection Range: 50 – 1,000,000 PPM
    • Resolution: 1 PPM
    • Accuracy: +/- 10% > 300PPM
    • Measurements: PPM, Temperature, Atmospheric Pressure, Absolute Humidity, Relative Humidity

Approvals:

  • Hazardous locations (pending): Class 1 Division 1
    Certified, Groups C, D. Temperature Code T4
    Certified to CSA C22.2 No. 213:2017, Conforms to UL 121201:2017
  • ISM Band: Compliant with FCC Part 15, IC (Industry Canada)

Accessories:

  • USB-4 Pin Cable: USB cable with 4 pin adaptor. 3 feet long (1 meter)
  • 4DPAK battery: 72Ah battery pack with integrated fuse and super capacitor
  • Anti-Theft Locking Ring: Aluminum ring with security screws and bottom plate to lock cover on device
  • L-Shape bracket with U-Bolt (included
    when purchasing AirQ Scout):
    Aluminum L-Shape bracket with U-bolt and mounting holes to install AirQ Scout

Features

01
Integrated gas sensor (See table below)

02
Integrated and protected antenna
03
Continuous measurement or Scheduled
04
Fast sensor sampling
05
Reports sensor specific measurements (See table below)

06
Measurements include: PPM, LEL, Ambient Temperature, Relative Humidity, Absolute Humidity

Revolutionizing Greenhouse Gas Monitoring

The AIRQ Scout is a modular wireless gas detection platform with integrated RF 900MHz wireless communications. Ideal for methane emissions monitoring.

It monitors the presence of a gas and transmits the measurement wirelessly to a SignalFire Gateway or a RANGER900. The measurements are integrated in a supervisory system using Modbus communication at the gateway. When using the RANGER900, the measurement are transmitted to the SignalFire Cloud using LTE-M CAT M1 / NB-IoT cellular connectivity.

The smart gas sensor is powered from the built-in 72Ah battery. It uses the latest in smart gas sensor technology providing for low power demand, stable and accurate measurement as well as long term stability with little to no calibration required. It automatically compensates for temperature and humidity when sampling a measurement and therefore delivers accurate
measurements with low drift. It’s low power requirements allow for long battery life.

TitleCategoriesFile TypeLinkhf:doc_categorieshf:doc_tagshf:tax:language
AirQ Scout DatasheetDatasheetpdfdatasheet900-mhz airq-scouten
AirQ Scout ManualManualpdfmanual900-mhz airq-scouten

Sensor Specifications

Gas Sensor Specifications Details
CH4
METHANE
Technology: MEMS Transducer
Detection Range: 50 – 1,000,000 PPM
2 SCFH @ 30′ (10m) distance
Resolution: 1PPM
Calibration: Factory Calibrated
Accuracy +/-10% > 300PPM (typical @ 20DecC / 50% RH)
Temperature -40DegC to +75DegC
Atmospheric: 80kPa – 120 kPa
Measurements Provided: PPM, Temperature, Atmospheric Pressure, Absolute Humidity, Relative Humidity
Damp Heat-Steady State: 500 hours @ 40°C/93% RH
Temperature Cycling: From -40°C to 85°C for 200 cycles
Sand/Dust: Sand: 150-850 µm SiO2 particle size, 23 m/s nom. velocity, 1.5 hrs @70°C per axis, 3 axes

Dust: Red China Clay, 1.5 m/s nom. velocity, 6 hrs @ 20°C and 6 hrs @ 70°C
Key Features Built-in environmental compensation – Inherently poison resistant – No calibration required – Supports 15+ year lifetimes
H25
Hydrogen Sulfide
Future Future
Refrigerants Future Future
Hydrogen Future Future
Flammables Future Future

Measurement Modes

Sensor Measurement Mode Sensor Power & Measurement Frequency Values Reported
CH4 Continous Sensor continuously powered. Values reported every 5 min or by exception. PPM, Atmospheric Pressure, Ambient Temperature, Relative Humidity, Absolute Humidity
Emissions Sensor powered for 5 minutes at a set report interval. Values reported at the end of the 5 min sensor measurement time. PPM, Atmospheric Pressure, Ambient Temperature, Relative Humidity, Absolute Humidity

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