SUB ASPIDA - Dimensions
Dual Calibration Adapter For Sub Aspida
SUB ASPIDA - Box Contents
SUB ASPIDA - Dimensions
Dual Calibration Adapter For Sub Aspida
SUB ASPIDA - Box Contents

Sub Aspida


The Sub Aspida is the ideal solution to protect you and your team from the dangers of enriched oxygen (O2), carbon dioxide (CO2) or inert gas leaks.

Key features

  • It is the only portable monitor to be pressure corrected ensuring no false readings are given
  • The Sub Aspida is compact in size (127 x 44 x 90mm LxDxW)
  • The oxygen (O2) sensor can be calibrated on air, reducing costly gas requirements and making you self sufficient in the maintenance of the sensor
  • The carbon dioxide (CO2) sensor only needs calibrating every 12 months
  • OLED (Organic Light Emitting Diode) display
  • Pressure compensated CO2 & O2 sensors
  • Rechargeable battery-operated (NiMH)
  • Datalogging
  • Man-down alarm
  • Can offer continuous monitoring or spot checking
  • Audio, visual and vibration alarms
  • TWA (Time Weighted Average) Alarm
  • User maintainable
  • Can be worn on the belt or clipped to a panel
  • Pressure range of 700-1200mbara
  • Maintenance reminders as standard

Industries that use the Sub Aspida as a portable atmosphere safety monitor for CO2 and O2 in pressurized environments

Pressurized environments are unique, as are the gas detectors used to monitor the area. The Sub Aspida is a compact portable atmosphere monitor, which is easy to operate and maintain.

This rugged and robust analyzer detects both carbon dioxide (CO2) and oxygen (O2) in pressurized environments from high altitudes to beneath the waves. Due to it’s size, it is perfect as a secondary monitor.

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Submarine rescue vehicles, Submarine escape and rescue

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Submarine atmosphere

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HBOT (Hyperbaric Oxygen Therapy)

CO2 monitoring & O2 monitoring with the Sub Aspida

Unlike industrial sensing monitors, the Sub Aspida was designed with pressure corrected sensors, giving you 100% confidence in your readings.

The Sub Aspida has been upgraded to support those who work at high altitude.

Pressure tested to 10,000 ft or 700 MB, the Sub Aspida will remain accurate and reliable when monitoring CO2 and O2 in the atmosphere, meaning you can concentrate on the job at hand!



The Sub Aspida also finds itself at home inside of submarine rescue vehicles (SRV), tourist submarines and research submarines. The Sub Aspida produces accurate readings over a pressure range of 800-1200 MB, without false alarms. Having the option to power the unit from AA alkaline batteries in the event of the submarine losing power makes it a perfect back up safety monitoring system in order to comply with the rules around SRV’s and life support stores with emergency monitoring being needed for a minimum of three days.



For the transportation of COVID-19 vaccines requiring large quantities of dry ice, the FAA (Federal Aviation Administration) advise that:

  • CO2 sensors installed or carried in the aircraft or worn by the pilots and other crew members will assist the operator and crew in recognizing hazardous concentrations of CO2 and implementing effective risk controls.
  • Pilot training on specific conditions and procedures can improve pilot decision-making in the event of a CO2 detector alert or other system abnormalities.

To persons conducting operations under Title 14 of the Code of Federal Regulation (14 CFR) Parts 121, 125, 129, 135 on safety issues related to the transportation of COVID-19 vaccines by air, which may require larger than typical quantities of dry ice for preservation.

Operators must comply with applicable federal regulations pertaining to the carriage of dangerous goods (49 CFR parts 171-180).



Whether you are measuring the atmosphere in an aircraft at altitude or in a submarine under the sea, the Sub Aspida can take the pressure.

It is critical to use pressure compensated sensors in these environments, otherwise it’s likely that you will get false readings, exposing your team to potentially dangerous levels of gas.

Relax, let the Sub Aspida take the pressure.

Optional Extras & Accessories

The Analox Aspida, ADM Aspida and Sub Aspida come with a wide range of spares & accessories to accompany your units, please see below:

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