SGX Sensors SGX-BR2-5, Bromine Gas Sensor IC for Air Quality Monitors

The SGX Sensors use a revolutionary innovation in electrochemical sensing, which detects the output signals from the electrochemical reactions of different gases. Furthermore, it accurately measures gas concentration through the magnitude of the signal. These specialised sensors consist of three catalytic electrodes, liquid electrolyte and gas diffusion holes. Through the diffusion holes, the gas reaches the sensor's working electrode, where an electrochemical reaction takes place at the so-called 3-phase boundary. A current signal is generated at the output, which is linearly proportional to the gas concentration.

Sensitivity -650 ± 200 nA/ppm
Measurement range 0 – 5 ppm
Zero current ± 20 nA
Maximum overload 10 ppm
Response time T50 < 20s, T90 < 60s
Repeatability 2%
Linear range 5 ppm
Resolution (16Bit ADC) <0.01ppm

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