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I would like to add a motion sensor to the Cerbo GX
can I use the following device from amazon?
https://www.amazon.com/gp/product/B09KH1YWT1/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1
Can I connect to the Cerbo GX via one of the digital inputs on the "bottom" and configure for door alarm or similar?
Yes, but the Cerbo digital inputs work best with just an on off switch, the voltage they can accept is quite low. Therefore, wire the output from your PIR to the coil side of a 12V or 24V relay depending on your operating voltage. Then connect the output contacts of the relay to the cerbo digital input.
A normal PIR (Not the one you linked) has an alarm output that is a dry contact relay that is simply "Open or Closed"
Please advise, which low power consumption motion sensor (battery operated?) will work with Cerbo GX (if possible through Bluetooth or in other case with cable connected).
Does the digital input on the Cerbo GX require voltage or does it want open/closed circuit (like taking each end of a cable to each connection on the digital input of the Cerbo GX)?
