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Product Specifications
Part Number ST01
ColorWhite
Item Package Quantity1
Batteries Included?Yes
Batteries Required?Yes
Product Features
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Product Description
From the Manufacturer
Intermatic heavy duty in-wall timer with astronomic features is made for a variety of uses. It can control lighting including fluorescent and heavy duty loads such as fans and appliances. It can be used for both a single pole and 3 way applications up to 100 feet. There are 6 on/off settings per day for a total of 42 per week. This to the minute setting accuracy is very easy to program with a 6 button set. It has a LCD digital clock and readout. The random setting feature helps avoid predictable timer contolled look. The battery backup feature avoids power outage resetting. Batteries are included.
Product Details
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Customer Reviews
Most Helpful Customer Reviews
78 of 78 people found the following review helpful
This purchase was worth every penny. Unbelievable all the features it has wrapped up in such a tiny package. Right now I have two seperate programs going. One program turns it on at dusk, and off at 10:30pm seven days a week. The other program turns it on at 6am, and off at 7:30am Monday thru Friday just for going to work in the mornings. The directions don't explain the multiple programs very well, but it can be done. Once you get your time zone and region set up, it is very simple to program after a few practices. The other cool feature is that you can manually turn it on just by pressing the cover to the controls, then pressing it again for off. The reason I purchased this particular Intermatic model is that it is capable of working with compact Fluorescents without damaging the bulbs mini ballast. There are many timers out there, but if you plan on using them with compact fluorescents, either read the package specifications or call the manufacture to make sure it will work for that application. Hope you find my review helpful.
54 of 57 people found the following review helpful
Amazon Verified Purchase
I've got it 2 weeks ago to replace EJ500C I was having for 3 months. My biggest problem with EJ500C was that I have fluorescent lights outside and had to use them with a regular incandescent to prevent the lights to constantly glow - electronic switch in EJ500C just can't cut the power off completely when there is no ballast I guess. Plus I don't know what EJ500C was doing to the power, but I had to replace that incandescent light every two weeks, which was driving me nuts. ST01C has a "real" mechanical relay inside that electronically controlled but physically switches the power. You can hear a distinctive clicking sound when it goes on and off. My biggest concern is that it's official replacement of disastrous model SS7C, which never lasted more then 6 months. Intermatic claims that ST01C was fixed and problems SS7C had are just impossible. Will live will see. For right now I'm very happy, my 6 CFLs and 300W low voltage circuit work as I want and I have plans to add more lights. I will update my feedback as soon as I have any problems with the switch (knock on wood).
Update (1/22/2009): after all the time passed I have only good things to say about the timer. Since the day one I didn't have to touch the settings, it works just fine. I have to admit that the timer's clock lost about 10 min for 14 months of non-stop work, but it is OK with me - no clock is perfect and turning the lights on 10 min earlier is no biggie. I didn't have to replace a single CFL light after starting using the timer. There is nothing to complaint about, 5 stars, honestly deserved by this switch
Update (1/22/2009): after all the time passed I have only good things to say about the timer. Since the day one I didn't have to touch the settings, it works just fine. I have to admit that the timer's clock lost about 10 min for 14 months of non-stop work, but it is OK with me - no clock is perfect and turning the lights on 10 min earlier is no biggie. I didn't have to replace a single CFL light after starting using the timer. There is nothing to complaint about, 5 stars, honestly deserved by this switch
31 of 33 people found the following review helpful
I started with the SS7C, it broke after 6 months. I then tried the EJ500C, it started flickering after one week. I now have the ST01C, hopefully it's better than the previous Intermatic junk I've owned.
Feature-wise, it's the best yet. I just worry about the reliability of the unit, given Intermatic's terrible track record.
I gave it 4 stars because the body that fits behind the wall plate is large, and it leaves little room for all the wires, and the wire-nuts etc.
If this thing breaks, then I'll be back to give it one star. Until then, stay tuned.
One more note -- the mechnical relay inside the unit makes a snapping noise when the lights go on/off. It's loud enough that my dog goes into "alert" status upon hearing it.
UPDATE ....
I really wanted to like this product. The features are great. I liked the idea of automatic DST adjustment in the spring/fall, and the self-adjusting sunrise and sunset option. And I liked the looks of this unit better than other models. I also liked the fact it's mechanical relay would switch just about any reasonable type of light.
But mine doesn't keep the correct time. The clock gains about a minute per week. THe problem is after a year, it will be off nearly an hour. Kind of makes the automatic DST, and sunrise/sunset adjustment meaningless if one has to adjust the clock for the correct time anyway. I don't expect the accuracy of the atomic clock in Boulder, but These days a $5 digital watch will keep nearly perfect time over a year. So what went wrong with this product?
So, mine is coming out of the wall again today, and getting returned to the store. For now, I'm just going to go back to a manual switch until some better product comes out.
Other than the inaccurate clock, the unit is perfect. I may have just received a lemon, and others may be fine, but after multiple trips to the store with defective Intermatic products, I'm done! I can't adjust my 4 star rating with this update, otherwise I would have adjusted the rating to about a 2 star.
Feature-wise, it's the best yet. I just worry about the reliability of the unit, given Intermatic's terrible track record.
I gave it 4 stars because the body that fits behind the wall plate is large, and it leaves little room for all the wires, and the wire-nuts etc.
If this thing breaks, then I'll be back to give it one star. Until then, stay tuned.
One more note -- the mechnical relay inside the unit makes a snapping noise when the lights go on/off. It's loud enough that my dog goes into "alert" status upon hearing it.
UPDATE ....
I really wanted to like this product. The features are great. I liked the idea of automatic DST adjustment in the spring/fall, and the self-adjusting sunrise and sunset option. And I liked the looks of this unit better than other models. I also liked the fact it's mechanical relay would switch just about any reasonable type of light.
But mine doesn't keep the correct time. The clock gains about a minute per week. THe problem is after a year, it will be off nearly an hour. Kind of makes the automatic DST, and sunrise/sunset adjustment meaningless if one has to adjust the clock for the correct time anyway. I don't expect the accuracy of the atomic clock in Boulder, but These days a $5 digital watch will keep nearly perfect time over a year. So what went wrong with this product?
So, mine is coming out of the wall again today, and getting returned to the store. For now, I'm just going to go back to a manual switch until some better product comes out.
Other than the inaccurate clock, the unit is perfect. I may have just received a lemon, and others may be fine, but after multiple trips to the store with defective Intermatic products, I'm done! I can't adjust my 4 star rating with this update, otherwise I would have adjusted the rating to about a 2 star.
Most Recent Customer Reviews
Great Product, Wish It Had A Backlight
After looking (and purchasing) several switches to control my 3 way fluorescent outside lights I finally bought the STO1C and it worked perfectly out of the box. Read more
Published 6 days ago by Roger Davis
Inherent programming problem with DST
This product worked like a dream for the initial 7 months of operation, then Daylight Savings Time of Spring 2012 ended all that. Read more
Published 2 months ago by Bill Roberts
Control lightening and Carillons in our church
We have used intermatic timers for years. They were the out-dated and obsolete model. I'm not impressed that I have to purchase a special battery, but we will give it a whirl. Read more
Published 2 months ago by Road Warrior
I Love these items, home depot stop selling
I loved this particular timer but they stopped selling at Home Depot. I bought their general electric model and thought it was broken but actually was my fault [caused by... Read more
Published 4 months ago by Derrick Hall
Great Product
This is an excellent item. It's very flexible, keeps time perfectly, and does exactly what it's supposed to do. Read more
Published 5 months ago by Kyle Cantrell
Fantastic product.
I wonder why I didn't purchase this sooner. This now controls my whole-house fan (replacing the old manual timer) and works like a charm. Read more
Published 5 months ago by Ted Neubauer
Electronic Lights Control
I bought this to replace an older Intermatic controller. The old one finally gave out after about 5 or 6 years, and I couldn't find the same model...evidently discontinued. Read more
Published 6 months ago by Limo2Go
Works just like it says and is perfect for my application
I purchased this timer a couple of months ago with some trepidation based on some of the reviews. But it was easy to install and easy to program as long as you follow the... Read more
Published 7 months ago by R. Horn
Short Review of Intermatic ST01C Wall Switch Timer
Our prior Intermatic wall switch timer was at least 20 years old. When it was time to "bury" it, I looked around for something similar. Read more
Published 7 months ago by BicPapermate
Great replacement for the original
So this one is much more sleek then the last old model, I also think it is a lot quieter but it still does make some noise when it flips as to be expected. Read more
Published 8 months ago by Murph
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