Multi-Gas Detection Systems of gas is crucial in order to prevent dangerous hazards, minimize human exposure and mitigate any casualties that may occur. Detection systems are designed to detect specific gases and alert users to their presence so that they can take appropriate safety measures before the gas reaches hazardous levels. Multi-Gas Detection Systems provide an easy-to-use solution that provides users with instant visibility into the potential hazards in their workspace to help make better informed decisions.

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Typically portable and weighing less than a pound, Multi-Gas detectors are designed to detect multiple gases simultaneously. They typically have larger screens to display more than one reading, as well as audible or visual alarms based on the model chosen and the gases it is intended to monitor. These devices are ideal for applications in the demolition of old buildings, landfill monitoring, fumigation and mining industries.

The multi-gas sensor used in the NDIR instrument is composed of a stainless steel gas cell, an IR source and a pyroelectric detector. The IR source generates a modulating signal with frequency and 50% duty cycle to drive the detector. The detector output voltage (Vp-p) is proportional to the gas concentration, as shown in Figure S1.

To determine the best multi-gas meter for your application, consider factors such as battery life, detection range and number of alarms. Then, ensure your meter is up-to-date by checking the calibration date, as well as the sensitivity and selectivity of each individual sensor.