RT310 Series Thermostat | 4.7. Temperature Outside Range - Hi & Lo

4.7. Temperature Outside Range - Hi & Lo
RT310RF - Temp Out Of Range Hi & Lo
RT310RF : Temperatures Outside Operating Range (4.7.1) . Description : Temperatures below 10 °C are displayed without the leading ‘0’. Temperatures exceeding the measurable range will be indicated by ‘HI’ for temperatures ...

RT310 Series Thermostat | 4.7. Temperature Outside Range - Hi & Lo | Help Center