AII Trimix 4001 Portable Diving Mix Analyzer

RM 0.00



Portable Diving Mix Analyzer – AII Trimix 4001

All-in-One Gas Detection Package for Technical Diving


AII Trimix 4001 Portable Diving Mix Analyzer designed to ensure the correct mix of helium, oxygen and nitrogen for technical diving. This easy-to-operate diving instrument automatically corrects for environmental conditions, eliminating the risk of errors from manual calculations. This will help the user to avoid nitrogen narcosis during dives down to 46 meters. It has a large backlit LCD display that is easily read even in low light conditions, and which provides additional information such as a Maximum Operating Depth calculation. These features make the Trimix 4001 one of the best nitrox analyzers on the market.



  • Displays O2, He and balance gas (0-100%)
  • One touch calibration with air (O2 Span and He Zero)
  • Includes temperature, barometric pressure and RH sensors
  • Long life battery with 16 hours of use, with two-hour charge time
  • 15-minute auto-off feature to save battery
  • Watertight, IP65 enclosure


Trimix 4001
Measurement range 0-100% Helium, 0-100% Oxygen
Accuracy ±2% of range at constant conditions
Response time ±2% of range at constant conditions
Sensor model He: AII-41-100, O2: AII-11-75D
Sensor life He: 10 years, O2: 60 months in air
Calibration interval Prior to use with ambient air or a known concentration of oxygen
Inlet pressure < 5 psig with 1-2 SCFH. Ambient air can be used for calibration if optional integral pump is fitted
Display Backlight LCD 6.4 x 6.4cm (2.5 x 2.5”)
Dimensions 221 x 190.5 x 96.5mm (8.7 x 7.5 x 3.8″)
Ingress protection Watertight case (when closed) IP65
Compensation Temperature, barometric pressure, relative humidity
Storage temperature 0°C to 50°C (32°F to 112°F) 50°C intermittently
Operating temperature Operating temperature
Power Rechargeable battery, 9 V DC from 110/220 V AC (can charge battery in 2 hours). Optional 12 V DC car charger

Additional information

Weight 3 kg