Guardian Gas Monitors Available
Gas Sensors
A range of high quality OEM gas sensors for Air Quality, Gas safety & Industry.
Technologies include Catalytic, Electrochemical, NDIR, PID & metal oxide sensors.
- Gas sensors for NH3, CO2, CO, H2S, O2, CL2, ETO, H2, HCN, HCL, CH4, NO, NO2, O3, PH3, SO2 & VOC's.
- Support products – mounts, filters, support circuits
- 4-20mA transmitter boards.
- Application notes


Precision NDIR Gas sensing solutions for Agriculture, landfill, Biogas, TOC, Mining, HVAC, MAP, CA, Heat Treatment & Horticulture applications.
- Gascard NG OEM NDIR gas sensors for CO2, CO, CH4, N2O & General Hydrocarbons
- Chillcard NG OEM NDIR gas sensors for CO2, CO, SF6, CF4, R125, R134a, Refrigerants & Freons.
- Accessory products – Displays, pumps, filters.
- Guardian NG & Guardian NG DC – Complete wall mount monitors for CO2, CO, CH4, N2O, SF6 & Refrigerants/Freons.


FoxSense AG : www.foxsense.ch/english/
PAROX 1200 OEM Paramagnetic Oxygen sensors with long service life.
Heated cell, Ranges available from 0-5% up to 0-100% Oxygen.
Voltage or 4-20mA outputs. 12-28Vdc supply.


Axetris AG
- Precision OEM Laser Gas (TDLS) Gas detection & Analysis solutions for CEM, Research, Process Control, Biogas, Environmental monitoring, Medical, Natural gas & gas leak detection applications.
- TDLS (Tunable Diode Laser Spectroscopy) offers excellent target gas selectivity and sub-ppm detection.
- Gases measured include NH3, HCL, H2O, CH4, CO2, C2H6, C2H4 – For other gases - Please enquire.
- Easily integrated – Dual gas variants available.
Two models to choose from:-
- OEM module LGD F200P2-H Series - https://www.axetris.com/en/lgd/products/lgd-f200
- OEM Gas Sensing module LGD Compact-A Series - https://www.axetris.com/en/lgd/products/lgd-compact

An extensive range of Electrochemical micro-fuel cell oxygen sensors for Industrial & Medical applications.
See website for the user guide.

For more information about our gas sensors, call 03 9752 3782.