Aeroqual 300 Monitor

A Versatile Monitor with the Ability to Accurately Measure Multiple Target Gases at Different Concentrations.

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  • Overview
  • Features
  • Specifications
  • Applications
  • Support
The Series 300 monitor is a versatile monitor with the ability to accurately measure a range of gases at different concentrations. The monitor can be fitted with any of the sensor heads listed on the Sensors tab. Sensor heads can be swapped quickly and easily, allowing one monitor to measure many different gases. It can also be configured to measure temperature and relative humidity by selecting the optional plug-in sensor.
Measured gases are displayed in ppm or mg/m3 on the large LCD display.  The user is able to set and adjust low and high level alarms which trigger an audible alarm when the set point is reached. The user is also alerted by flashing arrows on the display.
A key feature of the Series 300 is the ability to operate in control mode. Using the 0-5V output the Series 300 can be used to switch on or off an externally connected device or system in the presence of a predetermined level of gas. By selecting the optional wall-mount bracket and plugging in mains power the Series 300 is effectively able to act as a fixed monitor as well as a handheld portable device.
  • External control outputs 
  • High and low alarms 
  • Interchangeable gas sensor heads 
  • Easy to use and maintain 
  • Power adaptor/charger included 
  • Remote sensor capability 
  • Temperature and RH sensor (optional)
Measurement Units 
Gas: ppm or mg/m3 | Humidity: % | Temperature °C or F 
Reading Functions  Instant, minimum, maximum, average 
Sensor Head  Interchangeable, replaceable, refurbish-able 
Display Type  LCD 
Alarm Features  Low alarm, high alarm, mute (configurable) 
Display Status Indicators  Alarm, battery, sensor, standby 
External Signal Functions  Low alarm, high Alarm, control (150mA max) 
Sensor Calibration Features  Zero calibration, Span calibration 
Analogue Output  0-5V 
Power Supply  12V DC (power adaptor/charger supplied 100-250V AC) 
Rechargeable Battery  Lithium polymer 12V DC | 2700mA/h (2 hr charge time / 8 hr run time) 
Enclosure Material and Rating  PC and ABS; IP20 and NEMA 1 equivalent 
Size (with sensor head)  195 x 122 x 54 (mm)
Weight (with sensor head and battery)  < 460 g; < 16 oz 
Environmental Operating Conditions  Temperature: -5 ºC to 45ºC ; Humidity: 0 to 95% non-condensing 
Optional Accessories  Remote sensor kit, spare battery, car adaptor, wall bracket, carry case 
Temperature & Humidity Sensor (optional)  Range -40°C to 124°C (-40°F to 255°F); Range 0 to 100% RH 
Approvals Part 15 of FCC Rules; EN 50082-1: 1997; EN 50081-1: 1992 


For monitoring the below gases in a wide variety of industries. 

  • Ammonia (NH3)
  • Carbon dioxide (CO3)
  • Carbon monoxide (CO)
  • Hydrogen (H3)
  • Hydrogen sulphide (H3S)
  • Methane (CH3)
  • Nitrogen dioxide (NO3)
  • Non methane hydrocarbon (NMHC)
  • Ozone (O3)
  • Sulphur dioxide (SO3)
  • Volatile organic compounds (VOC)
  • Multi-sensor head: VOC / CO / CO2 or CO / CO2