GS012-CH4 Dual-channel Pyroelectric Methane Sensor

The dual-channel pyroelectric detector utilizes the pyroelectric effect of single-crystal lithium tantalate (LiTaO₃) and incorporates an ultra-low-noise field-effect transistor and a high-impedance gate resistor system to form the detection circuit; It is housed in a TO-39 metal package and contains two sets of independent sensor chips with built-in thermal compensation. Precision narrow-band filters serve as the infrared optical windows, with a center wavelength of 3.91 μm for the reference channel and 3.30 μm for the signal channel. It is widely applicable for CH₄NDIR gas detection and spectral analysis.