Trusted by divers and blending stations around the world. He/O2 analyzes oxygen and helium and shows the results directly on the display. Know the mix. Start the dive.
Gas Analysis
Gas Mixes
- Air.
- Nitrox.
- Trimix.
Heliox.
He/O2 analyzes gas mixes and clearly displays oxygen and helium content. Reliable gas analysis is essential before every dive.
Gases Measured
- > Oxygen
- > Helium
Practical Use
Gas Blending
- Dive center.
- Boat.
- Filling station.
He/O2 is designed for everyday gas analysis during blending and dive preparation.
Fast measurement helps verify the mix quickly.
Additional Capabilities
Gas Purity Measurement
The He/O2 analyzer can also be used for gas purity measurement. When needed, it can be configured to measure different gas mixtures
Interface
Display
Bright OLED display. Measured values are clearly visible in multiple formats.
Controls
Membrane keypad with menu navigation and dedicated controls.
Designed for reliable operation in field conditions.
Hardware
Sensors / Measurement Principle
Electrochemical oxygen sensor R-22S or compatible. Helium concentration is determined using speed-of-sound measurement, eliminating the need for a helium sensor.
Power
Depending on the version: Replaceable 9V battery (6F22) or built-in rechargeable battery.
External power supply by DC jack or USB-A.
Construction
High-strength aluminum alloy body with hard-anodized surface. Designed for durability and resistance to mechanical damage.
Service & Maintenance
Oxygen sensor replacement can be performed by the user.
Battery replacement depends on the analyzer version.
Firmware updates and data transfer are available through the USB interface.
Built-in Tools
He/O2 includes functions designed for gas blending and analysis.
Functions include:
- > continuous analysis with adjustable limits and alarms
- > alarm relay output for compressor emergency shutoff
- > gas mix solver
- > gas mix simulator
- > gas purity measurement
- > USB data output
Cylinder Labels
Print professional gas cylinder labels directly after analyzing the mix.
The He/O2 analyzer can connect to supported label printers.
Clear cylinder labels help ensure every gas is correctly identified before the dive.
Explore Divesoft Label print or Learn how Divesoft Label Print works!
Find the analyzer that fits your diving style
Design
Dimensions
85 × 205 × 40 mm
Weight
430 g
Materials
anodized aluminum with TPU ends
(body)
Display and user interface
Bright OLED
Full keypad
Technical Specifications
Measurement Method
Electrochemical O2 sensor and helium measurement based on speed of sound
Range of oxygen measurement
0–100 % O2
Range of helium measurement
0–100 % He
Measuring temperature
0–40 °C
Operating pressure
700–1100 mbar
Recommended Gas Flow
0.2 L/min
Calibration
Ambient air or reference gas
Power
Replaceable 9V alkaline or lithium battery
Connectivity
Mini-USB (data transfer, firmware updates)
Packaging
Comes in hard case or semi-hard case (depending on configuration). The Divesoft Analyzer He/O2 is available in two packaging options to suit your needs: a durable hard case for maximum protection, or a compact semi-hard case for easy transport.
Both versions include precision-cut foam inserts that keep the analyzer secure during travel and storage.
Sustainability
The He/O2 Analyzer follows Divesoft’s modular design philosophy: robust, serviceable, and built to last.
Its replaceable battery and sensor extend product lifespan and reduce electronic waste.
Warranty
Warranty 24 months on analyzer, 12 months on sensor.
For calibration, maintenance, or warranty service, contact your local Divesoft dealer or authorized service center.