Choose the THM303M thermostat bundle that best fits your indoor monitoring and comfort needs. THM303M thermostat bundles designed for existing legacy HVAC systems requiring basic programmable control.
UPM Legacy Stock • Limited quantities • Clearance pricing
Bundle #1 — Thermostat + Indoor Temp/Humidity
A simple bundle for home comfort: thermostat scheduling + one-room indoor monitoring.
- What you get: THM303M thermostat + TSH723 temperature & humidity monitor
- Best for: everyday indoor comfort and quick room checks
- Support: documentation-based legacy support (clearance stock)
Ships in 1–2 business days • Free shipping $75+ • $20 flat rate under $75 (Canada only)
Need help choosing? Visit Support.
Bundle #2 — Thermostat + Indoor Monitor (Clock/Trend)
For customers who like a clear display: indoor temperature/humidity with an easy-to-read unit.
- What you get: THM303M thermostat + TC381 indoor thermometer/hygrometer
- Best for: simple indoor monitoring with a straightforward display
- Support: documentation-based legacy support (clearance stock)
Ships in 1–2 business days • Free shipping $75+ • $20 flat rate under $75 (Canada only)
Need help choosing? Visit Support.
Bundle #3 — Thermostat + Indoor/Outdoor Weather
Most complete bundle: thermostat control plus indoor + outdoor awareness (station + sensor).
- What you get: THM303M thermostat + WS1200 weather station + WT440 outdoor sensor
- Best for: indoor + outdoor conditions at a glance
- Support: documentation-based legacy support (clearance stock)
Ships in 1–2 business days • Free shipping $75+ • $20 flat rate under $75 (Canada only)
Need help choosing? Visit Support.