Digital Temperature Controller Dual Probe 10A 1200W for Terrarium Heat Mat Fan
Probably it is the Alarm settings ( AL、AH、d7 ) you set areNOT the right temperature you want. AL is low temperature alarm(it sounds when current temp is AL or Lower), AH is high temperature alarm(it sounds when current temp is AH or Higher), d7 is difference alarm(it sounds when the temp deviation between sensor 1 and sensor 2 is over d7).
Digital Temperature Controller Dual Probe Reptile Thermostat Controlled Outlet F
In cooling mode, 1oN(2oN) is the maximum temp you allow, 1oF(2oF) is the minimum temp you allow. Reading temp is inaccurate?. Probably it is the Alarm settings ( AL、AH、d7 ) you set are NOT the right temperature you want.