Can I lock my thermostat so that no one can change the settings?

The following thermostats offer keypad lockout settings:
TH8110R1008, TH8320R1003, TH8321R1001, TH8321WF1001, TH6320WF2003, TH6220WF2006, TH6320U2008, TH6220U2000, TH6210U2001, THX9421R5021.

The following models offer range stop settings, which let you set high and low temperature setting limits for heating and cooling:
TH8110R1008, TH8320R1003, TH8321R1001, TH8321WF1001, TH6320WF2003, TH6220WF2006, TH6320U2008, TH6220U2000, TH6210U2001, THX9421R5021, TH6110D, TH6220D, TH6320U1000, TH5110D, TH5220D, TH5320U.

Thermostat guards (lock-boxes) can be purchased for the following thermostats:
TG510D1005 (painted metal)
TG510A1000 (clear acrylic)
Inside dimensions 4-7/16" H X 4-7/16" W

TG511D1004 (painted metal)
TG511A1000 (clear acrylic).
Inside dimensions 5-1/16" H X 6-1/16" W
Last updated: July 06, 2018
Was this article helpful?

DIDN'T FIND WHAT YOU'RE LOOKING FOR?

Tweet

Tweet Us

Follow us for the latest news on Honeywell Home.
7 AM – 7 PM CST,
7 days a week.

Live Chat

Live Chat

8 AM to 10 PM CST,
7 days a week.

Send Mail

Email Us

Don’t need urgent assistance? We’ll get back to you within 48 hours.

Call Us

Call Us

Experts are ready to help Monday to Sunday.