Functional Features：

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High precision measurement zero calibration; Fire protection dual bus, stable and reliable transmission; Plug in module design, easy to install; Non polarized power supply, simple wiring, safe installation in high voltage areas, with air ducts through walls, suitable for stairwells and front rooms.

Technical Parameter：

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Wiring system: signal two bus, non-polar
Static current:<1mA
Alarm current: ≤ 3mA
Measurement range: 200Pa~-200Pa
Dimensions: L85mmxW85mmxH34mm
Encoding method: Electronic encoding range: 1~64

Usage environment：

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Temperature: -10 ℃ to+50 ℃
Relative humidity:<95% (40 ± 2 ℃)