24 Hour Plug-in Mechanical Timer Grounded for Aquarium, Grow Light, Hydroponics, Indoor Lighting, Home Appliances, ETL Listed 125VAC, 60 Hz, 1875W, 15A, 1/2HP (2 Pack)

I purchased these timers to control my aquarium air pumps on 15-minute on/off cycles, and they’ve been working exactly as intended.Setup is straightforward. The mechanical dial is easy to read, the segments click firmly into place, and setting multiple short cycles throughout the day is simple once everything is aligned. The timers switch cleanly between on and off without hesitation.Build quality feels solid and appropriate for continuous indoor use. The grounded outlet fits snugly, and the override switch is convenient when manual control is needed without changing the programmed schedule.The two-pack was a great value and happened to be exactly the number I needed for my setup. These do precisely what they’re built for and are well suited for aquariums, grow lights, or other equipment that benefits from consistent timed cycles.Overall, dependable mechanical timers that are easy to use and perform reliably.

Great timer, and very easy to use! It comes with instructions, but is simple enough to figure out without them! I actually have bought maybe twenty or so of these, and use them in my commercial grow tents to give the proper light cycles on my plants, and they work wonderfully!!! You are able to run power off of them too, and have the power cutoff when the timer goes off. They have lasted a few years without breaking, so far so good!!!

Bought timers in the past that did not work to well. These are the real deal as they are easy to set and worked well.Would purchase them again.

Some of the little tabs don't seem to want to go down al the way and require some playing with to click into place but it works exactly as it should

Here are the "good" and "bad" on this product...ADVANTAGES.1. This is the highest consumer rated timer among 179 Amazon.com users with a score of 4.8 of 5.0 stars. Competing brands do not come close..2. It will operate with the highest energy demanding devices. The timer is able handle equipment that requires a maximum of 15 Amps, 0.5 HP, or 1,725 watts..3. UL tested and approved..4. There is a maximum of 96 15-minute settings..5. The construction is heavy - very rugged. It is not the familiar light cheap plastic types that are commonly sold in hardware stores..6. At $10, the consumer is getting great value for an over engineered and durable product that will last for years. For the quality, it should cost $20 to $30..7. It is simple to use. First, slide the side switch to TIMER. Second, use a tooth pick to press down the tabs on the clock dial to set the time(s) for the device to go ON. Each tab represents 15 minutes of activation. Third, rotate the round clock dial and position the black triangle to the present time..8. There is no comparison between this product and the competition. Through the years, I have used Intermec and GE brands. These were the only choices on the shelves of Lowes and Home Depot. They were cheaply made; they tend to overheat; and the life expectancy was short. The biggest problem was the limited number of settings. Two or four plastic pegs were provided to turn devices ON and OFF. In other words, the user can only activate the device once or twice in a 24-hour day. These plastic pegs tend to fall off and get lost - rendering the timer useless..The CENTURY 24 product does not have the above problems. Most important, there are no plastic pegs to insert and lose. Just depress any of the 96 15-minute settings with a toothpick to set a various number of activation times..9. The device is grounded for safety...DISADVANTAGES.1. The timer is heavy and big - leaves little room for another electrical device to plug into the electrical outlet..2. The manufacturer, Century Products, is not well known as Intermec or GE, competing companies that also make timers..3. The timer can only control one electrical device...==================================================================================================..UPDATE 1: I was too premature with my praise for this product. Of the two purchased, one went dead after two days...==================================================================================================..UPDATE 2: The malfunction happened on a Saturday. Three hours after requesting that the defective timer be returned for a refund, the vendor contacted me by email. He politely asked for a description of the problem, which I replied. Within an hour, a second email expressed his personal apologies and indicated that a free replacement will be shipped on Monday..The unit arrived a few days later. It was rigorously tested. The product turned my bedroom lamp ON and OFF every 15 minutes for 16 hours everyday. It was OFF for eight hours, because I did not want the lights flashing ON and OFF while sleeping. The testing will continue for the next few days. So far, the replacement timer is working without any problems..The reality is that defects in manufacturing happen all the time. This is normal..What is not normal is this vendor's reaction. It is unbelievable that a company immediately responded to a customer complaint within three hours on a weekend, confirm the issue within an hour, and ship a free replace on the next business day. Such an experience is "an all-time first." I am totally flabbergasted..Customer service like this puts all other businesses to shame. In fact, it must be emulated by all companies...==================================================================================================..UPDATE 3: I was so impressed with the product's quality, versatility, durability, reliability, and usefulness that I purchased four units. In operation for 24/7, they were continuously ON since October 16, 2016. During this time period, there were no breakdowns or time inaccuracies. My lights and lamps were turned ON and OFF without failure.

This 24-hour Plug-in Mechanical Timer was exactly what I needed. It was also as advertised. Easy to ser-up .

Works well and as it is described, will order again

Edit:The timer stopped working after 4 months. I sent them an email to see if they will replace it. At least it stopped working in the off situation.I'm not using it for this, I use it on a coffee warmer, but if you are legally growing cannabis, I would stay away from this timer. Big chance it could mess up your 12/12 cycle.Original review:It takes a few minutes to figure out how to set it if you are used to the ones with the tiny plastic inserts. This eliminates them and is an improvement once you figure it out.The one negative is it partially blocks the second plug on a duplex outlet. I can plug in a basic standard two prong plug in below it, but the three way plug multiplier I had on that outlet will not plug in because this thing is so bulky.It's quiet. The old ones I have have a low sort of churning sound that can be a little annoying when things are quiet in the room.I like the on switch on the side. The timer functions on and off while its in the off position but if you wanted to just turn it on and off real quick, the switch allows for that.I like the power-on LED. This tells you whenever power is on...obviously. It comes on when the timer setting is to be on, and turns off when the timer turns off, and also comes on if you turn the switch on the side to on. I like seeing that quickly and obviously.I bought this to use with a miniature hot plate I have as a coffee warmer. I have it set to come on earlier in the AM and off early afternoon when I am usually finished drinking coffee or tea. I do that because sometimes I forget to turn the hot plate off and I'm afraid it will go haywire when I'm not in my office and start a fire.This is really 4.5 star product but I dont know how long it will last and I see others have had some failures. 1/2 star off for only using it for a while so far and dont know the longevity and 1/2 start off for it partially blocking the adjacent plug on the duplex outlet. They could have just made the casing a little bit smaller on the bottom and would not have this issue.

So far it is working great. I'm using it to reboot my wifi modem each morning at 3:00. Was super simple to set up and so far is keeping accurate time. Recommended!

Funciona muy bien

Once you get past the initial setup, this mechanical timer is fantastic. It takes a bit of attention the first time to understand how to push the pins and set the on/off periods, but after that it runs by itself and I don’t have to think about turning things on or off anymore. The schedule is accurate, it’s not overly complicated, and it’s a very convenient way to automate lights or small appliances.

MUY BUENO Y FUNCIONA PUNTUALMENTE TODOS LOS DÍAS; YO LOS USO DESDE HACE VARIOS AÑOS.

This device will randomly turn on La maps in your house!This device along with support of your neighbors is a great way to deter criminals from targeting your house!