Here are the main two sensors I cover in this video

Camtraptions PIR V2 : (now they have a V3) https://store.camtraptions.com/produc...

Battery life: 6AA batteries more than 2 weeks of life

Cognysis Sabre:

Battery life: Depends on the mode, depends on if WIFI is enabled up to 71 hours (https://cognisysinc.com/learnhowto...) OR if you connect to a 12V power supply I've been able to get more than 2 weeks at a time.