Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: will a standard rectangular opening switch plate fit it? (ie: can I put it in a 4 gang box with 3 other switches and use a regular 4 gang cover?)
Document: It came with a single gang cover however I installed it in a three gang box. The switch is about an inch deep and requires a bit of space in the box for installation. I have a low wattage Panasonic bathroom ban (40w) and the switch works flawlessly. I understand some timer switches do not work well with low wattage fans.Overall very happy with my purchase and would recommend to others for this application.
It has been working perfectly since I installed it: some minutes after someone starts taking a shower, it automatically switches the fan on, and after the humidity is lowered, it turns it off. It resolved the bathroom's problem of having the popcorn ceiling peel off and  be refinished at least twice a year.
I am using this switch in conjunction with Panasonic's fan. It's an excellent product. It turns on the fan when relative humidity rises and goes off once humidity returns to normal state. Usually I forget to turn it on before taking shower and usually it runs after I leave the bathroom. The point is - I don't have to control it manually.
I purchased this switch for my main bathroom fan. The bathroom is 13.5' long and 5 feet wide with an 8 foot ceiling. The switch is mounted at the opposite end of the bathroom from the bath and automatically turns on after a few minutes of the shower running. Alternatively it can be turned on manually. It automatically turns off after 30 minutes so the fan is never left on.
I ordered the more expensive Panasonic version of this switch thinking it would be more reliable, but when i opened the package identifying it as a Panasonic, clearly on the metal part of the switch was Dew Stop FS-100. Not sure if that's what Panasonic did or it was done elsewhere. The Dew Stop can be bought for much less. I installed the switch and it seems to work, albeit it does take a while until the sensor turns on the fan.
One thing that wasn't described clearly is the timer. After high humidity flips the switch, it will remain on for 30 minutes before it automatically shuts off. But you can manually shut it off. There is no way to adjust the sensitivity of the humidity sensor either. I installed in my master bathroom, it will trip on when I am nearly done showering, and I just let it run for a few minutes before hitting the off switch. A smaller room might trip the sensor sooner.
Perfect for one of the kids bathrooms. I wanted it for the humidistat and timer features and is great. No more issues with a foggy bathroom after a hot shower and that risk of mold yet it shuts itself off when its all clear so no wasted energy or wear and tear on the fan. Sems to work with the nutone fan just fine. I just wish it also had a motion sensor built in... but we can't everything (yet). Great switching switch though and worth the money.
kids shower for a long time and moisture is a problem.this switch will help! It also helps old people.
This switch works great! You never have to think about the fan again in the shower. You just take a shower and the fan turns itself on when the humidity rises. Nice looking also.
This light and fan switch works well with the Pan fan and light unit. The built in sensor in light switch is a great feature that ensure no humidity issues in the bathroom.
Answer: no