BN-LINK Short Period Repeat Cycle Intermittent Timer, Interval Timer - Day, Night, or 24 Hour Operation, Photocell Light Sensor Dusk to Dawn for Hydroponics Aquaponics Aeroponics

This little timer makes hyroponics simple. I do 15 min on and 15 min off for my tower. Its a simple device, but never skips a beat and has been working flawlessly.

Works great easy to use built very well great for 24 or day and night cycling I use it for my king cloner water pump just set for time you want on and off and it keeps my Temps steady in water doing a 15 min on and off 24 hour cycle mode

I was glad to find they even made a timer like this!I needed a water transfer pump to go on for 1 minute and off for a few minutes (expanding duration as water stopped leaking into basement) so pump wouldn’t burn out. It worked perfect.

Works great, and as advertised.

I have a unique situation in which I need to have my lawn sprinkler, which is connected to a pump that draws water out of the lake, come on for 15 seconds and repeat in 15-minute intervals. This short interval timer accomplishes that task, which, when connected to a smart plug, allows me to manually run the pump and sprinkler only at night. The timer does have a dusk to dawn option but I prefer to do it manually. The result is that geese are discouraged from roosting on my lawn overnight and leaving me with a mess to clean up in the morning. It's not your typical application but it solves my problem and I'm very happy with it. The downside is that the timer is not rated for outdoor use so I had to buy a waterproof electrical box to keep everything dry. I had to drop one star off my rating because even though the dials are finely calibrated, I had to go through a lot of trial and error to get the precise timing that I was looking for. Other than that, it's a great item and I would recommend it with the caveats that I've explained.

Works great and performs exactly how it should! Highly reccomend for a short cycle timer.

I've bought a couple of these wonderfully versatile timers. The separate selectable on and off durations provide you near limitless options for controlling your devices. I use mine to control dog kennel heating pads indoors. They're on for less than a minute, then off for several more. This prevents the crate from getting too warm. They seem really well made. I bought my first one a few years ago and have had no issues.

Great timer with good accuracy. Easy to program.