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GMI PS200 4-Gas multi gas detector

GMI PS200 4-Gas multi gas detector

Portable gas detector
A robust and accurate portable gas detector, the Personal Surveyor (PS200 Series) provides unrivalled protection in confined space applications with audible and visual alarms in the event of exposure to flammable or toxic gases.Detecting and displaying up to 4 gases simultaneously, PS200 is suitable for a host of applications in a variety of industries. The PS200 can be configured to detect a combination of Methane, Oxygen, Carbon Monoxide, Hydrogen Sulphide, as well as other flammable gases. Pre-entry checking can be carried out with the optional internal sampling pump, and strong diffusion operation ensuring maximum battery life in confined spaces.
GMI GT series gas leak detector

GMI GT series gas leak detector

Portable gas detector
Designed for the gas industry, the GT Series are multi-application instruments, satisfying all the needs of service technicians within a single unit. With 7 modes of operation, the GT Series is the most versatile instrument available for working with gas.The GT Series is suitable for the following operations: Leak test, Confined space entry, Barhole testing, Carbon monoxide, Purge, Sniffer, Pressure leak tightness.s, the Protégé SG offers maximum versatility in a reusable solution.
Kimessa EXD gas detector

Kimessa EXD gas detector

Commercial gas detector
Various gas sensor technologies available (electrochemical, infrared, pellistor, semiconductor). 16…30VDC supply voltage (2-wire, 3-wire or 4wire cable for CANline BUS-Network). Water- and dust-proof IP 65 enclosure Optional 230 VAC supply for standalone operation
Kimessa Canline gas controller

Kimessa Canline gas controller

Commercial gas detector, Car park air monitoring, Medical gas detection
The gas detector is part of the digital KIMESSA CANline BUSNetwork which is designed for up to 128 gas detectors and alarming units. The CANline 32+ may be connected to a total of 32 digital sensors along with 6 of relay cards. 3 CANline-Bus-Expander cards may be connected for an additional 3×32 digital sensors inputs giving a total of 128 sensors. Maximum of 128 relays may be connected (6 Relay cards on the CANline 32+ and 3×6 relay cards on the CANline-Bus- Expander).
Inosent Easy stand-alone gas detector

Inosent Easy stand-alone gas detector

Commercial gas detector, Car park air monitoring
The Easy product line is as simple as it is ingenious: this stand-alone gas detector also has the functionality of a control device. This is a simple, high-quality, compact solution for small systems. The Easy product line can be ordered for use with most detectable gases and programmed for the normal alarm limits. The Easy product line offers two built in relay contacts, an alarm sounder and a flashing light. The stand-alone gas detector can be used with 230 VAC or 24 VDC and features analogue as well as digital output signals.
Smokerlyzer iCO

Smokerlyzer iCO

Medical gas detection
The World’s First Smokerlyzer® Breath CO Monitor For Your Smartphone/Tablet
Smokerlyzer Pico

Smokerlyzer Pico

Medical gas detection
Breath CO monitor to help stop smoking
Tongdy MSD Transmitter

Tongdy MSD Transmitter

Indoor air quality monitoring
The Tongdy MSD transmitter can include multiple sensors such as PM2.5, PM10, CO2, TVOC, HCHO, Temperature & humidity and can monitor these 24 hours a day. The special multi-sensor module is in a sealed cast aluminium structure which protects it from radio interferences and improves the anti-jamming capability. The sensor has various communication interfaces which include, RS485 Modbus, WIFI & RJ45 Ethernet.MSD
Tongdy TSP-18 CO2 / Temperature & Relative Humidity Transmitters

Tongdy TSP-18 CO2 / Temperature & Relative Humidity Transmitters

Wireless CO2 Monitoring
The Tongdy TSP-18 transmitter allows for the real time output of CO2 / Temperature and Relative Humidity readings to the MyTongdy.com cloud platform. The output options are either RJ45 or WIFI and they are suitable for most networks in old and new buildings.
Tongdy F12 CO2 transmitter

Tongdy F12 CO2 transmitter

CO2 sensor transmitter
The Tongdy F12 CO2 transmitter uses a NDIR infrared detector to provide real time readings of the CO2 levels via a 4~20ma or 0-10vdc output. These sensors can be connected to any control device that can effectively measure 0-10vdc or 4~20ma signals. They also have an optional Modbus output for communication to building management systems and PLC’s.
Tongdy F2000TSM CO2 detector

Tongdy F2000TSM CO2 detector

CO2 monitor & controller
The Tongdy F2000TSM CO2 controller uses a NDIR infrared detector to provide real time readings of the CO2 levels via a 4~20ma or 0-10vdc output and has a relay output for external control. This sensor provides LED indication of the current CO2 levels at its position.
Tongdy GO1 CO2 monitor & alarm

Tongdy GO1 CO2 monitor & alarm

CO2 monitor & controller
The Tongdy GO1 CO2 controller uses a NDIR infrared detector to provide real time readings of the CO2 levels via a 4~20ma or 0-10vdc output. It has the option to provide temperature as well as relative humidity readings on separate analogue outputs. The current CO2, temperature and RH readings are displayed on the LCD screen.
GECA Gamma 654 gas detector

GECA Gamma 654 gas detector

LPG & Methane gas detector
The detector has been designed to signal the presence of a concentration of gas of between 10% of L.E.L. (Lower Explosive Limit) in the environment in which it is installed. This threshold may vary during use with variation of environmental conditions but it will not exceed 20% of L.E.L. during the first 4 years of use.
GMI PS500 5-Gas multi gas detector

GMI PS500 5-Gas multi gas detector

Portable gas detector
The PS500 can be tailored to detect up to five gases with its toxic and catalytic sensors, photo ionisation detectors and infrared capabilities. ‘Plug and Play’ option allows the customer to ‘plug in’ a new board with a different gas range. The PS500 is particularly useful in noisy environments, featuring a very loud (95dBA) penetrating and distinctive audible alarm together with high visibility large area visual alarm. Pump, diffusion or both together, allowing pumped sample for pre-entry checking and diffusion in confined space working, thus maximising battery life. A robust, moulded, rubberised casing guaranteeing Hi-Impact resistance, the PS500 can be used in the most demanding environments.
Mastech gas leak detector

Mastech gas leak detector

Portable gas detector
Quickly identify and determine the flammable gas leakage location. High sensitivity, which can be adjusted manually. There is a headphone jack for using in noisy environment. Quickly identify and determine the flammable gas leakage location. It can be used to detect various flammable gasses, such as natural gas, methane, ethane, propane, LPG & others.ly useful in noisy environments, featuring a very loud (95dBA) penetrating and distinctive audible alarm together with high visibility large area visual alarm. Pump, diffusion or both together, allowing pumped sample for pre-entry checking and diffusion in confined space working, thus maximising battery life. A robust, moulded, rubberised casing guaranteeing Hi-Impact resistance, the PS500 can be used in the most demanding environments. The PS500 is particularly useful in noisy environments, featuring a very loud (95dBA) penetrating and distinctive audible alarm together with high visibility large area visual alarm. Pump, diffusion or both together, allowing pumped sample for pre-entry checking and diffusion in confined space working, thus maximising battery life. A robust, moulded, rubberised casing guaranteeing Hi-Impact resistance, the PS500 can be used in the most demanding environments.
Kimessa safe area gas detector

Kimessa safe area gas detector

Commercial gas detector, Car park air monitoring
Linearized and temperature-compensated 4-20mA output signal. 16…30VDC supply voltage (2-wire or 3-wire cable). Various gas sensor technologies available (electrochemical, Infrared, pellistor, semiconductor).
Kimessa Monoline 504 carbon monoxide gas monitor

Kimessa Monoline 504 carbon monoxide gas monitor

Commercial gas detector
The CANline 32+ control unit displays the detector gas concentration with name and location. The CANline 32+ may be connected to a total of 32 digital sensors along with 6 of relay cards. 3 CANline-Bus-Expander cards may be connected for an additional 3×32 digital sensors inputs giving a total of 128 sensors. Maximum of 128 relays may be connected (6 Relay cards on the CANline 32+ and 3×6 relay cards on the CANline-Bus- Expander)
Gastrolyzer Gastro+

Gastrolyzer Gastro+

Medical gas detection
Breath hydrogen monitoring to aid in the detection of gastrointestinal disorders
Smokerlyzer Micro+

Smokerlyzer Micro+

Medical gas detection
CO breath and foetal %COHb %FCOHb monitor to help people stop smoking
ToxCO

ToxCO

Medical gas detection
Quick, easy & non-invasive screening for CO poisoning
Smokerlyzer Pico Baby

Smokerlyzer Pico Baby

Medical gas detection
Breath CO monitoring for pregnant women to help them stop smoking.
Tongdy TF9 Transmitter

Tongdy TF9 Transmitter

Outdoor air quality monitoring
The Tongdy TF9 is specially designed for atmospheric ambient air quality monitoring with multiple sensor options. These sensor options include PM2.5, PM10, Ambient Temperature & Humidity, Ozone (O3), Carbon Monoxide (CO), Carbon Dioxide (CO2), TVOC and Atmospheric Pressure. These detectors are specially designed to protect against rain and snow, high & low temperature resistance, UV-resistant and solar radiation hoods. The sensor has various communication interface options which include RS485, WIFI, RJ45 and 4G Communication.
MyTongdy.com data platform

MyTongdy.com data platform

Indoor & Outdoor air Quality monitoring
The new MyTongdy.com data platform is designed to support the latest indoor and outdoor air quality monitors. It offers an online web based platform where the client can monitor the air quality in their buildings. The service also offers Android & IOS applications for ease of use.
Tongdy F2000IAQ CO2 controller

Tongdy F2000IAQ CO2 controller

CO2 monitor & controller
F2000IAQ-CO2 monitor/controller is used to monitor and control, room CO2 levels, as well as room temperature and humidity. It provides one, two or three 0~10vdc analog outputs and up to three dry contact outputs . F2000IAQ-CO2 can be as a programmable logical controller to control CO2 level, temperature or humidity, and also as a transmitter DDC/PLC controller or other automation systems. It provides a RS485 communication interface with an independent address to PC or other control systems.
Tongdy TKG CO2 monitor & alarm

Tongdy TKG CO2 monitor & alarm

Greenhouse CO2 controller
The TKG-CO2 sensor is ideally suited for greenhouse operation and control of CO2 gas distribution within the greenhouse. The TKG-CO2 controller uses a NDIR infrared detector to provide real time readings of the CO2 levels on the LCD display and has a relay output for external control.
GECA Beta 762CO

GECA Beta 762CO

Battery operated carbon monoxide alarm
EN50291 defines the CO level, at which the device must and must not go into alarm. The higher the CO concentration, the quicker the device will give an alarm. This is based on the fact that the poisoning impact of CO is determined by CO concentration and exposure time. The alarm points ensure that the user is always warned when critical situations occur.

Get in touch

General enquiries, quotation requests, service call bookings & complaints

+27(0) 12 940 1954

info@centmark.co.za

5 Ireland Avenue, Eldoraigne, Centurion

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    Get in touch

    General enquiries, quotation requests, service call bookings & complaints

    +27(0) 12 940 1954

    info@centmark.co.za

    5 Ireland Avenue, Eldoraigne, Centurion