The Polytector III G999S portable gas detector was designed for personal protection against up to 8 gases simultaneously while also being able to analyze confined spaces and detect leakages. The unique sensor configuration with combined CC/TC or CC/TC/SC sensors for measuring methane in both the lowest and highest concentrations make the G999S ideal for sampling natural gas pipelines, biogas plants and any other application with potential methane dangers. The measuring range of the CC/TC or CC/TC/SC sensor can easily be changed at the push of a button. In leak detection mode, an acoustic signal will reliably help you find even the tiniest methane leaks. 

Safety and controls

The Polytector III G999S is certified for safe use in Ex zone 1 and protected against the ingress of water and dust according to protection class IP67. This makes the multi-gas detector suitable even for harsh areas of application. The sturdy housing made from rubberized polycarbonate offers excellent protection from shocks and vibration. Its handy design and the resilient crocodile clip ensure high comfort when wearing the device. It is controlled with just three buttons and features a color-backlit display which can be rotated by 180 degrees if necessary. For situations with less than ideal lighting conditions, the G999S is equipped with an Ex proof flashlight.

Alarms, battery capacity and pump performance 

When a threshold value is exceeded, the G999S will warn its wearer in three different ways: using a very visible light signal, strong vibrations and a loud (103 db(A)) buzzer. The integrated NiMH battery guarantees ten hours of use after each charge, even in high-stress applications (maximum number of sensors equipped, pump operating and radio connection). The pump for analyzing confined spaces will transport approximately 0.6 liters per minute on distances of up to 100 meters.

Connected Safety
When equipped with an optional radio module, up to 10 portable gas detection devices of the G999 series can be connected to the Connected Safety Monitor TeamLink. The supervisor thus always has an overview of the local readings and the status of each team member. In the event of a gas or man-down alarm, the supervisor can initiate help quickly and systematically. The G888/G999 Visual software facilitates monitoring of more than 10 portable gas devices on a laptop or tablet, and will allow you to send short messages or even simulate gas alarms for emergency training.

Accessories
The DS400/404 docking station can be used to charge, calibrate and adjust the gas detectors of the G999 series. To make it easier to differentiate between gas detectors for different applications, they can be marked with diffusion covers in five signal colors. Clearance measurement is made easier with various suction tubes and floating probes. A complete overview of all accessories and extensions offered for the G999 series can be found at the bottom of this page.

Model variants
There are four other models available in the G999 series: the G999C, G999P, G999E and G999M. All of these detectors offer slots for 3 electrochemical and an optional (combination) infrared sensor. Depending on the model variant, G999s also come with a catalytic sensor (G999C & G999M), a PID sensor (G999P), a fourth electrochemical sensor (G999E) or a CC/TC or CC/TC/SC sensor (G999S). This allows you to set up a variety of combinations of up to eight gases or measuring ranges for simultaneous monitoring. The G999M, which was developed specifically for the mining sector, is not only approved for use in Ex zone 0 but also received the M1 label for safe use underground. If you require a multi-gas detector without an integrated pump, the handy Microtector G888 is a great choice. It comes in two different versions: the G888C for use in Ex zone 1 and the G888M, which can be used in Ex zone 0 and is approved for mining applications. Both models feature slots for up to 5 sensors (3x EC, 1x CC, 1x IR).