Not everyone wants a tiny computer on their tap. The YL-21025 is the water timer for people who want automation without the instruction manual — two chunky dials, no menus, no Wi-Fi, no "why is the screen blank" moments. Turn one dial to how often you want to water, turn the other to how long, and walk away. It just works, season after season, even when the smart gadgets have given up.
• Frequency can be set at 1, 2, 3, 4, 6, 8, 12, 24, 48, 72 H, and Week
• Run Time can be set at 1, 3, 5, 10, 15, 20, 30, 60, 90, 120 mins
• For taps with 26.5mm(G 3/4”) thread
• 2 x AAA alkaline batteries required(not included)
Heads-Up: This is a mechanical timer — brilliant in its simplicity, but it has no display or programs. One important rule: Frequency must always be longer than Run Time (e.g. you cannot set a 90-minute soak every single hour). The 2× AAA alkaline batteries are not included and should not be rechargeable. Use fresh cells at the start of each season.
Specification |
Detail |
Model |
YL-21025 |
Product Type |
Two-Dial Mechanical Electronic Water Timer |
Control |
Two rotary knobs — Frequency & Run Time (no screen, no app) |
Frequency (How Often) |
1, 2, 3, 4, 6, 8, 12, 24, 48, 72 hours, or 1 week |
Run Time (How Long) |
1, 3, 5, 10, 15, 20, 30, 60, 90, 120 minutes |
Power |
2 × AAA (LR03) 1.5V alkaline batteries (not included); not rechargeable |
Tap Connection |
3/4" (G3/4, 26.5 mm) with collar-ring clamp, hand-tighten |
Hose Connection |
Male snap-on connector at base |
Operating Pressure |
0 – 8 bar (0 – 116 psi) |
Water Temperature |
1°C – 60°C |
Protection |
Water-resistant, O-ring seal, sealed top cover, dirt filter |
LED Indicator |
Blinks 1× / 4 sec; fast / steady blink = replace batteries |
Manual Watering |
Turn Run Time dial to ON; OFF to stop |
Dimensions |
228 × 153 mm |
Installation |
Outdoor use only; above ground, vertical to tap, never submerged |
Good to Know: The first watering starts one Frequency-interval after you set the dials, then repeats. To land the first soak at a set time, make your settings that many hours beforehand. After any change, wait ~3 seconds (LED flashes quickly) for the timer to validate. In winter or freezing weather, remove the timer, drain it, take out the batteries, and store it indoors.
Q: Do I really just turn two dials?
A: Yes. Frequency = how often, Run Time = how long. There is no screen, no menu, and no app to learn — that is the whole point.
Q: How do I water right now without changing my settings?
A: Turn the Run Time dial to the ON position for instant manual watering, then back to OFF (or your usual setting) when finished.
Q: What batteries does it take?
A: Two AAA (LR03) 1.5V alkaline cells, not included. Use fresh alkaline batteries at the start of the season; do not use rechargeables.
Q: Will it fit my tap and hose?
A: The tap adaptor is a standard 3/4" (G3/4, 26.5 mm) thread with a hand-tightened collar ring, and the base has a male snap-on connector for a normal hose.
Q: Can it handle low water pressure?
A: Yes — it works from 0 bar up to 8 bar, so it is fine even on gravity-fed or low-pressure supplies.
Q: Is it waterproof?
A: It is water-resistant for outdoor use, not submersible. Mount it above ground and vertical to the tap, keep the top cover and O-ring sealed, and never immerse it.
Q: Why is my first watering later than I expected?
A: The timer starts its first cycle one Frequency-interval after you set the dials. Set the dials that many hours before your ideal start time to line it up.
No menus, no manuals, no meltdowns. The YL-21025 proves that good automation does not have to be complicated — two dials, two batteries, and your plants take care of themselves.