Currently unavailable.
We don't know when or if this item will be back in stock.

Have one to sell? Sell on Amazon

Honeywell, Inc. THM5421C1008 Equipment Interface Module for

5.0 out of 5 stars 3 customer reviews

Currently unavailable.
We don't know when or if this item will be back in stock.

Specifications for this item
Brand Name Honeywell
Part Number THM5421C1008
Number of Items 1
Item Weight 10.4 ounces
UNSPSC Code 32000000

Control your home with your voice Control your home with your voice


Special Offers and Product Promotions

  • Working on a home project? Need some help? Check out Amazon Home Services and get $30 cash back when you book select services. Learn more


Product Description

THM5421C1008, Honeywell, Inc., Equipment Interface Module for

Product Details

  • Item Weight: 10.4 ounces
  • Shipping Weight: 5 pounds
  • ASIN: B003KVCNQA
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (3 customer reviews)
  • Amazon Best Sellers Rank: #214,342 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

Customer Questions & Answers

Customer Reviews

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%
See all 3 customer reviews
Share your thoughts with other customers

Top Customer Reviews

By Michell A. Ross on June 8, 2016
Verified Purchase
I changed over to a communicating thermostat, and this unit was the equipment interface. All worked as expected - perfectly. Not for the casual home owner, but I like to tinker and it was very, very easy to set up using the included installation manuals.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Installation instructions not very thorough but a great product. Three wires is all you need to operate any type of hvac. Hear pump conventional or dual fuel
Comment One person found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Verified Purchase
Easy to install. Works fine
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse