Mr. Steam 104219
Battery Pair, CR2450, for AirTempo
Two batteries came with the AirTempo control at initial purchase. You may purchase these as replacement batteries. They come as a pair.
Mr. Steam states both batteries should be replaced at the same time. The positive side of the battery goes towards the "+" symbol on the battery door. There is no data on battery life.
NOTE: To preserve the originality, operation and safety of replacement parts, this product is not returnable.