Description
Honeywell T678A-1353
Reliable Honeywell room temperature control for commercial HVAC and fan coil applications
| Brand | Honeywell |
| Model | T678A-1353 |
| Voltage | 24V AC |
| Country of Origin | United States |
| Weight | 0.25 kg |
| Dimensions | 86 x 86 x 30 mm |
| Warranty | 6 months |
| Certifications | CE, UL |
| SKU / MPN | T678A-1353 |
| What’s in the box | Honeywell temperature controller, mounting hardware, installation documentation |
| Product Type | Room temperature controller |
| Control Range | 10-30°C |
| Sensing Element | Bimetallic temperature sensor |
| Output Configuration | Heating and cooling control contacts |
| Mounting | Wall mounted |
| Application | Fan coil and HVAC systems |
Key benefits: Accurate temperature regulation, simple installation, durable construction, dependable HVAC control, compact wall-mounted design
Typical applications: Fan coil units, office buildings, hotels, classrooms, healthcare facilities, commercial heating and cooling systems
Lifecycle: Mature industrial HVAC product with established replacement and maintenance support
Our Advantages
Exact match for many brands
We make replacements easy with an exact match for almost any brand.
We use OEM catalogs to match your part number
Don't worry about ordering the wrong part by matching your part number with our OEM catalogs.
Competitively priced
Shop with confidence knowing we are offering very competitive pricing!
Orders usually ship the same day
Rest assured your order will arrive as soon as possible knowing we usually ship the same day.
Individually inspected
Before any package is shipped we carefully inspect every product to ensure quality.
Guaranteed for one full year
All of our New Surplus and Reconditioned products come with a 1 year warranty.
Run Business
Building a reputation for quality products at a reasonable price. Our inventory is far more extensive than what can be represented on our web site, so please call one of our knowledgeable salesmen with your specific needs.








Patricia E. –
Excellent support when we had integration questions. The product met our standards.