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Apply for a Home Depot Consumer Card- Adjustable humidistat
- Suitable for all Master Flow brand power attic fans
- Pre-wired for installation
- View More Details
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Product Details
Specifications
Dimensions: H 7.75 in, W 4.75 in, D 5.25 in
Questions & Answers
23Questions
Q:Can I wire two fans that carry .30amps each to the unit?
by|Jun 29, 2023
1 Answer
Q:What is the amperage rating of the electrical switch contacts?
by|Apr 17, 2023
1 Answer
Q:Does this detect Humidity OR Relative Humidity
by|Apr 17, 2023
1 Answer
Q:With this controller, the attic fan will come on when it rains and the humidity in the attic gets high. This is unnecessary noise and it wastes energy. Do you have a solution to prevent this from happening?
by|Feb 20, 2023
1 Answer
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Jul 19, 2023
Would like it more if it had a knob.
by
Response from Master FlowJul 21, 2023
Glad you were satisfied with your Master Flow purchase. Thanks for the feedback.
Dec 29, 2021
Humidistat integrates and works perfectly with a Masterflow fan. ...
Humidistat integrates and works perfectly with a Masterflow fan. Call Masterflow to get the specs to connect the wiring properly - it can be tricky otherwise.
by
Response from Master FlowMay 2, 2022
Thank you for the feedback. Glad you were satisfied with your Master Flow purchase.
Aug 27, 2021
IS NOT PRE WIRED !!!!...
IS NOT PRE WIRED !!!!
by
Response from Master FlowSep 27, 2021
Please give us a call at 1-800-211-9612 and we can walk you through properly wiring this unit.
May 4, 2021
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by
Response from Master FlowOct 4, 2022
Thanks for the feedback. Glad you were satisfied with your Master Flow purchase.
Mar 9, 2021
screws protrude out the back, so surface-mount requires considerations. Seems...
screws protrude out the back, so surface-mount requires considerations. Seems to work fine.
by
Nov 16, 2020
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by
Mar 31, 2020
Hookup is easy and works very well....
Hookup is easy and works very well.
by
Mar 31, 2020
The humidistat works great. It was easy to install...
The humidistat works great. It was easy to install and it seems to work great.
by
May 9, 2019
I installed one of these a couple of weeks ago and subsequently found that it had no variability ...
I installed one of these a couple of weeks ago and subsequently found that it had no variability as claimed, but is instead frozen at around 40% humidity, which renders it useless for automatically controlling a crawl space vent fan, since the humidity will never get that low to turn the fan off except during the most extreme winter weather. I contacted the vendor's tech support email and got no response. I ordered another one and installed it only to find that the second one had the same problem, except frozen at around 55% - still too low to be useful as an automatic crawl space vent fan controller. In looking over the reviews I see that others are having the same problem. In both cases I tested over a period of hours using a hygrometer to verify ambient humidity, just in case these were some unusually slow reacting humidity sensors. No change of switching point in either case, 40% for the one and 55% for the other, with crawl space humidity readings between 70 and 90%. This is a difficult installation in a shallow crawl space, taking significant chunks out of what paltry bit of free time I have, and it is very frustrating to have to go through the whole thing twice with the result of facing a third installation and tying up more time. I'm going to return them both and will be avoiding this brand going forward.
by
Dec 18, 2018
Was used and did not work. Looked new till...
Was used and did not work. Looked new till you opened it. Extra Holes drilled in bottom with no order and shavings left in. No ground screw. After checking it, was a thermostat but marked as a humidistat. I lost time and money on this for a job. I had to order this.
by
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