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Product Features
  • High-visibility LED alarm
  • Audible alarm
  • Gas sensor port
  • LCD with gas reading or time remaining
  • Three gas options: O2, CO, H2S
  • One-button activation
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

  • We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
  • If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
    with our best shipping prices along with your quote.
  • Please see our delivery page for full information

Teledyne GMI Protege ZM Single Gas Monitor O2

The Protégé ZM Single Gas Monitor-an easy-to-use, zero-maintenance gas detection solution that delivers high performance in a small, ergonomically designed package. It is available in oxygen, carbon monoxide and hydrogen sulphide single gas models. This single gas monitor is incredibly reliable, giving industrial workers and first responders the confidence to focus on the task at hand, not on their equipment.

With one-button activation, adjustable alarm settings and an easy-to-read display the Protégé ZM is simple to use. Just turn it on for the first time, and the monitor does the rest. Using the default settings from the factory there is no need to set up or program the monitor. Once activated, the Protégé ZM monitor does not require charging or calibration so these monitors can be deployed in the field 24 hours a day, every day for two years, maintenance and hassle-free. The H2S and CO models include a hibernate feature which allows you to extend your battery life up to one additional year.

Because of its small size and strong, stainless steel alligator clip, the Protégé ZM can be conveniently placed where you want it. The monitor is small, lightweight (76.5g), ergonomically designed and meets IP67 requirements for ingress protection. The unique Protégé profile fits your hand nicely, making the monitor comfortable to hold. It's so lightweight and small you will forget you're wearing it while it protects you.

The Protégé ZM monitor is supported by a portfolio of accessories including a four-bay test station and IR Connect programmer. The test station stores data, programs the monitors and supports bumping, calibrating, hibernating and programming of up to four monitors simultaneously, and is available in both portable and table-top versions. The test station's simple two-button operation and intuitive design means you'll be up and running in no time. The Protégé ZM test station is also available in a compact table-top version. A convenient gas inlet on the side panel allows any size calibration bottle to be used.

The IR Connect allows programming and hibernating of individual monitors. You can also use the IR Connect to calibrate your monitor and download event logs.


  • 2025938 Protégé ZM Single Gas CO Monitor (High Vis Red)
  • 2025937 Protégé ZM Single Gas H2S Monitor (High Vis Red)
  • 2025939 Protégé ZM Single Gas O2 Monitor (High Vis Red)

  • 2025941 Portable Test Station
  • 2025942 Protégé ZM Stationary Test Station

  • 2025940 Protégé IR Connect with USB Cable
  • 2025958 Protégé IR Connect Spare USB Cable
  • 2025957 Protégé ZM Alligator Clip
  • 2025956 Protégé ZM Calibration Cup
  • 2019127 H2S Single Gas Cylinder
  • 2026296 CO Single Gas Cylinder
  • 2026297 O2 Single Gas Cylinder
  • 2019125 Regulator 2AL/AL/6D 0.5LPM
  • 2024511 10-ft. Clear Tubing
  • TBD 10-ft. Polyethylene Tubing
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