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Air Quality & Gas Detection

GS-AQ Air Quality Transmitter

The GS-AQ series of air quality transmitters are designed for use with the control of fresh air for ventilation purposes. They determine the air quality through measurement of Volatile Organic Compounds (VOC’s) and other mixed gases. This signal can be used to control fresh air fans and dampers according to the ventilation load.

From $281.24
GS-AQ-x-UN Air Quality Transmitter

This single analogue universal sensor has a valuable feature - its ability to automatically detect what the controller input is set to, 4-20mA or 0-10Vdc. This removes the requirement for output jumpers that can be inadvertently set incorrectly. On board LED indication of which output type is in operation is provided. Also available with a passive resistive output for temperature, along with other passive outputs.

From $226.83
GS-CO Carbon Monoxide Sensors

Sontay’s range of CO sensors offer real time detection for Carbon Monoxide measurement. A valuable feature of this sensor is when in 3-wire mode it automatically detects what the controller input is set to, 4-20mA or 0-10Vdc. 2-wire loop powering selectable via DIP switch. The long life electrochemical Carbon Monoxide sensor makes it ideal for many applications including underground parking, loading bays and warehouses.

From $333.57
GS-CO2-D - Carbon Dioxide, Temperature and RH Sensors

Using a NDIR sensor for measuring CO2 concentrations and utilizing ABC (Automatic Baseline Correction) algorithm, they offer excellent long term stability & accuracy. Available with active temperature and RH outputs, as well as other passive outputs and user interfaces. A unique feature of this sensor automatically detects what the controller input is set to, 4-20mA or 0-10Vdc. This removes the requirement for output jumpers that can be inadvertently set incorrectly.

From $432.73
GS-CO2-S - Carbon Dioxide, Temperature and optional RH Sensors

Using a NDIR sensor for measuring CO2 concentrations and utilizing ABC (Automatic Baseline Correction) algorithm, they offer excellent long term stability & accuracy. Available with active temperature and RH outputs, as well as other passive outputs and user interfaces. A unique feature of this sensor automatically detects what the controller input is set to, 4-20mA or 0-10Vdc. This removes the requirement for output jumpers that can be inadvertently set incorrectly.

From N/A
GS-CO2-x-UN - Single Output Carbon Dioxide Sensors

A unique feature of this sensor is its ability to automatically detect what the controller input is set to, 4-20mA or 0-10Vdc. This removes the requirement for output jumpers that can be inadvertently set incorrectly. PCB LED indication of which output type is in operation is provided. Also available with a passive resistive output for temperature, along with other passive outputs.

From $224.35
GS-PM-S

Using unique technology of compensating method, and up to nine calibration points, to guarantee GS-PM-S measurements accuracy in different environments.

GS-S Gas Sensors

The GS-S range of 4-20mA loop powered gas sensors are fitted into a robust housing, to detect the following gases: Nitrogen dioxide (NO2), Oxygen (O2), Sulphur dioxide (SO2)

From $531.68