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TH1110D2009 – Resideo T1 PRO Thermostat (1 Heat / 1 Cool, Non‑Programmable)
TH1110D2009 – Resideo T1 PRO Thermostat (1 Heat / 1 Cool, Non‑Programmable)
TH1110D2009 – Resideo T1 PRO Thermostat (1 Heat / 1 Cool, Non‑Programmable)

TH1110D2009 – Resideo T1 PRO Thermostat (1 Heat / 1 Cool, Non‑Programmable)

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TH1110D2009 – Resideo T1 PRO Thermostat (1 Heat / 1 Cool, Non‑Programmable)

Product Description

The Resideo TH1110D2009 T1 Pro Thermostat is a simple, reliable, non‑programmable thermostat designed for 1 Heat / 1 Cool conventional systems. Built for straightforward operation and dependable temperature control, the T1 Pro is ideal for residential applications where ease of use and durability matter most.

Its clean interface, precise temperature accuracy, and trusted Resideo/Honeywell Home engineering make it a go‑to replacement for older mechanical and digital thermostats.


Key Features

  • 1 Heat / 1 Cool conventional system compatibility

  • Non‑programmable — simple set‑and‑forget operation

  • Easy‑to‑read digital display

  • Accurate temperature control for consistent comfort

  • Battery powered for flexible installation

  • Horizontal mount

  • Resideo/Honeywell Home quality and reliability


Technical Specifications

(from Neuco product page — )

  • Model: TH1110D2009

  • Series: T1 Pro

  • System Type: 1 Heat / 1 Cool (Conventional)

  • Power: Battery

  • Mounting: Horizontal

  • Weight: 0.73 lb

  • Dimensional Weight: 2.0 lb

  • Dimensions: 5.1 × 6.2 × 2.35 in

  • Country of Origin: MX


Cross‑Reference & Past Model Numbers

These are the most common equivalent or superseded numbers associated with the T1 Pro 1H/1C non‑programmable thermostat:

Direct Replacement / Same Series

  • TH1110D2009 (current model)

  • TH1110D1009 (earlier T1 Pro version)

Older Honeywell / Resideo Non‑Programmable 1H/1C Models

  • TH3110D1008

  • TH1100D1001

  • TH1100DH1004

  • TH1100DV1000

  • TH1100DV1002

Common Contractor Substitutes (same application)

  • TH2110DV1008 (2H/1C HP capable but often used as a universal replacement)

  • TH5110D1006 (FocusPRO 5000 series)

OEM / Distributor Cross‑References

  • Honeywell Home / Resideo T1 Pro Series

  • Often listed under “T1 Pro Non‑Prog 1H/1C” in distributor catalogs


Common Applications

  • Gas furnaces

  • Electric furnaces

  • Single‑stage air conditioners

  • Single‑stage heat systems

  • Mobile home HVAC systems

  • Rental properties and simple residential installs


Why Technicians Choose the T1 Pro

  • Fast installation

  • No programming callbacks

  • Reliable temperature accuracy

  • Perfect replacement for older Honeywell non‑programmable models