I've got a 35mm Trailmaster that if the camera part had not been destroyed in a fire a few years ago, would still work and it is 20yrs old. The sensors and the camera were separate and the sensors still work perfectly. I could get another camera for it but last I checked, they wanted almost $400 for a new 35mm. The 2007 Moultrie I had is still working, although I don't have it anymore.
Blessings.....Pastorjim