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Gas Safety Alarm Mounting Height Chart

Gas safety alarm sensors should be mounted at different heights in an enclosed area depending on the gas you are monitoring. Use this chart to determine where to mount yours.

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Using RS485 Protocol with Gas Sensors

Using RS485 Protocol with Gas Sensors
The RS485 protocol is used for long-distance communication or to connect different sensors from different manufacturers.

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Wireless Gas Sensor Using Bluetooth

Wireless Gas Sensor Using Bluetooth
How to connect a gas sensor via Bluetooth wireless for experiments, scientific or industrial applications.

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Altitude Compensation for CO2 Sensors

Altitude Compensation for CO2 Sensors

Altitude makes a difference when you are measuring CO2 levels. CO2 sensor modules are calibrated at sea level, and are not designed to automatically compensate for higher altitudes. CO2 sensors need either a manual offset using a barometer or lookup table for altitude compensation, or a built-in barometric pressure sensor to automatically compensate for the change. Altitude Compensation: Identifying the Problem A customer called recently and said we had sold him a defective CO2 sensor module. He had calibrated it precisely at 0.0ppm (zero parts-per-million), took it outside, and the sensor read 335ppm. “Where do you live?” we asked. “Colorado,” he...

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Gas Sensor Calibration

Gas Sensor Calibration
Calibration matches a sensor’s output to a known standard. Here are the 3 types of calibration we use for gas sensors.

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