The manufacturers tell you that you should use only the same brand batteries together, but they don't provide any good justification for that. Whether alkalines or rechargeable, voltage is voltage, and your device neither knows nor cares who made the batteries. Your device is certainly not going to ...

Some sensors can connect the info line to the bottom once activated....but they are doing NOT connect the info line to the +12v once NOT activated. The aim of the electrical device is to forever connect the signal line to the +12v at a restricted current. Once the detector connects the info line to ...