Can I lock the T4 Pro thermostat to prevent unauthorized changes?
Yes, the T4 Pro thermostat includes a lockout feature that allows you to lock the thermostat settings. This is particularly useful for preventing unauthorized adjustments in commercial or rental properties. (Page 14)
From the official Honeywell T4 Pro Programmable Thermostat (TH4110U2005/U) manual, page 14
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