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.

Benefits of Partnering With Our Guardian Gas Monitors
Partnering with Anri Instruments & Controls ensures not only access to cutting-edge guardian gas monitors in Gully, Vic, but also a comprehensive suite of services designed to support your business from start to finish. By choosing us, you secure a partnership that prioritises safety, efficiency, and operational excellence.
Here are the key benefits of working with Anri Instruments & Controls:
· End-to-End Support: From initial consultation to equipment installation, commissioning, and ongoing training, we provide complete solutions tailored to your needs.
· Industry-Leading Expertise: With years of experience in gas instrumentation, our team understands the unique challenges of diverse industries.
· Precision and Reliability: Our monitors are engineered for accuracy and durability, ensuring consistent performance even in demanding environments.
· Regulatory Compliance: Stay ahead of industry standards and environmental regulations with systems designed to meet or exceed compliance requirements.
· Customised Solutions: Every business is unique, and so are its needs. We work closely with clients to deliver tailored solutions that fit specific applications and budgets.
· Commitment to Sustainability: Our innovative products and services are designed to reduce environmental impact while enhancing operational efficiency.
By leveraging our expertise and advanced technologies, businesses can achieve measurable improvements in safety and productivity. Whether you’re managing industrial processes or conducting environmental monitoring, guardian gas monitors in Gully, Vic, offer unparalleled reliability.
For more information about our gas sensors, call 03 9752 3782.