I replaced a Graystone with a new Graystone, the old I could set from 65?-90 at what ever I wanted. The replacement has a remote and goes from 65-95 in 5 degree incriminates, once you get the temp another push of the button gives you low/high/auto go too far and it drops to the next lower.
2015 F350 FX4 SRW 6.7 Crew, longbed - 2017 Durango Gold 353RKT
2006 F350 SRW 6.0 crew longbed sold
2000 F250 SRW 7.3 extended longbed airbags sold
2001 Western Star 4900EX sold
Jayco Eagle 30.5BHLT sold, Layton 24.5LT sold