Originally Posted by irrig8r
I thought it was the MC Plus-B that had the NVM.
I may be wrong. Found a 1997 MC Plus manual online that says it has a NVM and a 9 V alkaline for current time.
All I can figure is that the one on one of my jobs with the NiCad batteries must be an earlier version.
If it's 12 years old it should be an MC-B+. The original MC+ and MC-A+ had the yellowish/brown metal faceplates. There was no functional or cosmetic difference between the MC+ and the MC-A+. There was a slight design difference electronically. The MC-B+ was released once the James Hardie Co bought Irritrol / Garden America from Black and Decker. The Irritrol B+ Series were all engineered by James Hardie.