Water Timer Electronic Hose Sprinkler - No Water Pressure Required, Two Dial Garden Irrigation Controller for Lawns, Flower Beds & Vegetable Gardens

I bought 1st a different timer and later 3 of these. The blue one is working fine a few weeks into service. I use this timer to drip irrigate from a tub onto an individual tree until it can get established. My mountain soil is so poor it passes water through fast and wont retain moisture.This timer doesn't require water pressure- it just opens and shuts. Adjustable down to once per hour and as little as one minute. I get three days of watering repeatedly through out the days. You do have to watch them and make adjustments. That 1st one, a green different brand, is giving me trouble. These blue ones, once dialed in, are working with out any issues. Uses two AAA batteries. There is no clock to set. Time starts upon setting- three blinks to say ok and occasional blinks regularly timed to indicate 'all's well'. Good price and quick shipping. I'm pleased with them. Look at my photo to see the setup. A tub with flat sides, a bulk head fitting or a drain fitting for a swamp cooler-same thing, sprinkler fittings and away you go. I have on the very end a round drip fitting with a 1/16" hole in it to slow watering down even more but you don't need that. Literally 1 minute once per 2 or 4 hours will suffice. Try it out for newly planted trees or shrubs. I had an orange tree and watered by hand every day but it just stayed alive and got smaller. With this setup I have, now it's put on new growth, looks like it will make it now.