I'm in need of a new LP detector to replace my Safe T Alert 40-442P. My friend got a new one that mfg. date was 2 yrs.old when he received it, so on a 5 yr. life he's already down to 3. Where have you...
I bought mine on Amazon. Manufacture date was 3 months before I received it. Maybe I got lucky, but at least it's easy returns through them if the date is way out.
Bob might be right on powering it up though, so it may not matter ?