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Product Specifications
Part Number ST01AC
ColorAlmond
Item Package Quantity1
Batteries Included?Yes
Batteries Required?Yes
Product Features
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Product Description
From the Manufacturer
This Intermatic heavy duty in-wall timer with astronomic features has multiple uses to meet all your needs. You can set it one time and not need to set it again. It follows daily changes in the sunrise/sunset times. It can be used for single pole and three-way applications up to 100 Feet away. It controls lighting which includes fluorescent and heavy duty loads such as fans and appliances. It has up to 6 On/Off settings per 7-day period for a total of 42 settings per week. It has an easy to set 6 button program. Also included is an LCD digital clock and readout, battery backup and manual override feature.
Product Description
Sold as each. Same settings Monday through Friday, Saturday & Sunday. All 7 days of the week or individual daily settings. Set it once and never set it again. Sunrise/sunset times. Up to 6 on/off settings per 7-day period a total of 42 on/42 off settings per week. To the minute setting accuracy. LCD digital clock and readout. Battery backup. Manual override feature. Almond color . Manufacturer number: ST01AC. SKU #: 3239076. Country of origin: China. Distributed by Intermatic, Inc.
Product Details
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Customer Reviews
Most Helpful Customer Reviews
28 of 30 people found the following review helpful
A rather ambiguous title for this review, but this timer has earned it. Overall, this is a delightful product, easy to install (don't believe the electrician who reviewed it), with a great, efficient program that changes dawn and dusk times automatically and even adjusts for daylight savings time.
However, as many of the reviews state, it is not the most reliable of switches. I have been using these for over five years, and sometimes a switch will last two or even three years, and other times for only a few months before reverting to a "No Op" mode, or back to the original unprogrammed mode for no perceivable reason. Of course, after a few months, no one will take the switch back. It also has a rather odd battery that is not widely available.
Unfortunately, I am rather stuck if I want this kind of timer, because the Aube timers (more reliable and easier to program, according to reviews) all require a white neutral wire to operate. Heck, my house's wiring is so old, they hadn't even heard of ground wires when it was installed. As far as I can tell, the Aube and the Intermatic are the only players out there. I would even be willing to pay a premium price for a timer that could be installed in my house and worked reliably for several years.
The irony is that, after writing this review, I will probably order a few more of these. I love the features of this switch enough to pay the price, as frustrating as I find the failures.
However, as many of the reviews state, it is not the most reliable of switches. I have been using these for over five years, and sometimes a switch will last two or even three years, and other times for only a few months before reverting to a "No Op" mode, or back to the original unprogrammed mode for no perceivable reason. Of course, after a few months, no one will take the switch back. It also has a rather odd battery that is not widely available.
Unfortunately, I am rather stuck if I want this kind of timer, because the Aube timers (more reliable and easier to program, according to reviews) all require a white neutral wire to operate. Heck, my house's wiring is so old, they hadn't even heard of ground wires when it was installed. As far as I can tell, the Aube and the Intermatic are the only players out there. I would even be willing to pay a premium price for a timer that could be installed in my house and worked reliably for several years.
The irony is that, after writing this review, I will probably order a few more of these. I love the features of this switch enough to pay the price, as frustrating as I find the failures.
27 of 29 people found the following review helpful
Amazon Verified Purchase
Purchased ST01AC for the porch light and it works great. Instructions are good, easy to install and program. Even comes with a quick program instruction sheet so you can have it working in minutes. I replaced a single pole switch with it but it can be used with a 3 way switch also. Can be set for the new DST and can even be adjusted. i.e.: I set it to come on at Dusk but I advanced the sunset time 15 minuets so it comes on 15 minuets after sunset (saves about 2 hrs. burn time a week) then turn off at a certain time rather than burn all night and turn off at sunrise, which it can also do. Overall a good switch for the money, I would buy another one and I just might for the driveway lights.
15 of 15 people found the following review helpful
This is the absolute best in-wall timer I have ever seen. It has an excellent dusk-on/dawn-off feature that changes with the calendar. The randomization feature is an added bonus.
This is their heavy-duty timer, so it easily works with compact fluorescent lights.
It was easy to install, supports integration with a secondary switch (3-way), and was easy to program. While the display was a little small, and therefore a little difficult to read, it is not something that needs to be read every day.
To date, I have not been able to find its equal.
The three units I have installed are working great, and have been doing so for years.
I noticed another reviewer indicated the unit does not have the Underwriters Laboratories (UL) marking; however, it does have the CSA International marking of "CSA" with a "C" and a "US. This web page has information about this marking: http://www.globalspec.com/reference/3297/Underwriters-Laboratories-UL-Marks
A call to my local electrical code enforcement agency told me that as long as the unit was marked with "CSA" and "US", it was fine.
This is their heavy-duty timer, so it easily works with compact fluorescent lights.
It was easy to install, supports integration with a secondary switch (3-way), and was easy to program. While the display was a little small, and therefore a little difficult to read, it is not something that needs to be read every day.
To date, I have not been able to find its equal.
The three units I have installed are working great, and have been doing so for years.
I noticed another reviewer indicated the unit does not have the Underwriters Laboratories (UL) marking; however, it does have the CSA International marking of "CSA" with a "C" and a "US. This web page has information about this marking: http://www.globalspec.com/reference/3297/Underwriters-Laboratories-UL-Marks
A call to my local electrical code enforcement agency told me that as long as the unit was marked with "CSA" and "US", it was fine.
Most Recent Customer Reviews
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I had to program it again and again using the written instructions that came with it, and I kept missing a key fact: it was set to go off when I wanted it to go on. Read more
Published 1 month ago by David Winston
Great product
I bought 2 of these programming controls, it is easy to install, a lot programs available, hevy duty, very good quality I recommend it.
I'll buy more to do automatic my house.
I'll buy more to do automatic my house.
Published 2 months ago by Eduardo Castro Gamb
Excellent replacement for an older model
We have had one model of this bramd for over 20 years, became unreliable so decided to replace it. This is SO much better with the automatic timer set to the dusk/dark mode. Read more
Published 3 months ago by VALUE SHOPPER
Slightly difficult to set up, but well worth it
I bought this a year ago, and got a bit frustrated with the set-up, because I was using it in a three-way installation. Read more
Published 4 months ago by Sean
Works, but difficult to program - does it know when sunset is?
Like others, I love this little guy but what a bear it was to install. I bought three, for different sets of lights in the house. Read more
Published 5 months ago by R. V. Hatcher
Frustrating to program and to re-program.
The timer has been reliable for years, BUT IT IS TOO COMPLICATED TO PROGRAM AND TO REPROGRAM. I change the "on time" three or four times each year and every time I do it I have to... Read more
Published 5 months ago by hobby fan
Don't have to even think about timers anymore
For many years, we have had three timers controlling outdoor lights on the front, back and side of our house. Read more
Published 6 months ago by PF South
On and Off cover falls off
1 week old and the On/Off cover keeps falling off. I like the time update for it to come on and off.
Published 7 months ago by J. Cunha
so far so good
I have three timers for exterior lighting.Two were intermatic and I brought a third to control one back door light. Read more
Published 8 months ago by irishrover
.Recalled by US Consumer Product Safety Commission
This model was recalled due to shock hazards on July 1, 2009 per US Consumer Product Safety Commission Release 09-259.
I would recommend researching before purchasing.
I would recommend researching before purchasing.
Published 9 months ago by W. M. Roberts
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