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P3 P0550 Water Meter

4.2 4.2 out of 5 stars 4,235 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Watering Timers by SAVE A DROP

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Color Multicolor
Brand SAVE A DROP
Material Plastic
Product Dimensions 2.7"D x 4"W x 2"H
Item Weight 82 Grams

About this item

  • Use the easy to read meter to measure how much water is flowing out of the hose
  • it calculates both accumulative watering volume and singular waterings
  • Take "guesstimates" out of the equation when watering your lawn
  • Accurately Measures To 1/10th Of A Gallon
  • Rugged, Waterproof Housing

Additional Details

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 4 x 2.7 x 2 inches; 2.89 ounces
  • Item model number ‏ : ‎ P0550
  • Department ‏ : ‎ Electronics
  • Batteries ‏ : ‎ 1 CR2 batteries required. (included)
  • Date First Available ‏ : ‎ October 31, 2011
  • Manufacturer ‏ : ‎ P3 International
  • ASIN ‏ : ‎ B0058EOC5M
  • Country of Origin ‏ : ‎ India
  • Customer Reviews:
    4.2 4.2 out of 5 stars 4,235 ratings

WARNING:

CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

Product Description

It is widely accepted that talking to your plants is great for their health. If they could speak to you, what would they say? Probably that they're being over-watered. Meet your garden's wants and needs with the Save A Drop Meter. Over-hydrating plants and shrubs can diminish plant health. Use the easy to read meter to measure how much water is flowing out of the hose. While in use, it calculates both accumulative watering volume and singular waterings, the amount of fluid used in between when you start and stop the hose. Take "guesstimates" out of the equation when watering your lawn. Attach the gauge to your sprinkler and know when the time is right to turn your hose on and off. Being aware of water consumption benefits your home, garden, greenhouse, and the planet. The Save A Drop Meter is an important tool to use when keeping your home happy and healthy. Features: Prevents over-watering , Easy to read LCD display ,Calculates both single-use and total water consumption, Accurately measures to 1/10th of a gallon, Rugged waterproof housing


From the manufacturer

Equipment, resources, and expert service to support your full potential

Growing begins with knowing. Hydrofarm isn’t just a centralized hub for all your retail and commercial indoor agriculture needs. Our seasoned team of category and technical specialists are here to empower you as you navigate challenges, no matter how big or small. After 40+ years of getting our hands dirty, there’s nothing we can’t figure out together.

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What's in the box

  • item and manual
  • Looking for specific info?

    Customer reviews

    4.2 out of 5 stars
    4.2 out of 5
    4,235 global ratings

    Customers say

    Customers like the ease of installation of the water meter. For example, they mention it's easy to attach to the end of the hose and measures water. Customers are also impresseded with the value, saying it'll keep their bill in check. That said, some complain about the leakage. Opinions are mixed on quality, accuracy, and battery.

    AI-generated from the text of customer reviews

    120 customers mention115 positive5 negative

    Customers find the installation of the water meter to be easy. They mention that it's simple, easy to attach to the end of the hose, and easy to read. Some say that it is easy to use very accurate.

    "...Easy to use, accurate and takes the guess work out of what those lights are really telling me. I'd recommend this item." Read more

    "...PRO: Cost, ease of use;CON: Sensitivity factor is low." Read more

    "Easy to use very accurate." Read more

    "...This little meter is really easy to use and will track current usage (top number) and total usage (bottom number)...." Read more

    116 customers mention116 positive0 negative

    Customers appreciate the value of the water meter. They say it's well worth the price, an inexpensive water metre that helps keep their bill in check.

    "...PRO: Cost, ease of use;CON: Sensitivity factor is low." Read more

    "Low price, reasonable accuracy, works fine for my gardening application...." Read more

    "Works as promised; excellent product!" Read more

    "...This looks to be the best bang for the buck, as I saw something similar a few years ago for RV'ers for twice the money. Hope this is helpful...." Read more

    663 customers mention343 positive320 negative

    Customers are mixed about the quality of the timer. Some mention that it works well, while others say that it fell apart. The hose bib is very fragile, and the device basically fell apart after 10 uses.

    "...It worked perfectly for a while but then it actually came apart on the female connection end...." Read more

    "...The numbers just didn't increase.Then the other one started acting flaky, and neither one of them was recording flow, yet both still had..." Read more

    "This water flow meter is quite basic, but seems to work well in 'casual' applications where high accuracy is not required...." Read more

    "...Sadly, I have low hopes that this new replacement low-quality product will hold up either...." Read more

    264 customers mention179 positive85 negative

    Customers are mixed about the accuracy of the water meter. Some mention it was super accurate, works great for measuring water flow, and was calibrated perfectly. However, others say that they noticed problems with one not measuring flow rate anymore, even though the meter was quite basic. They also mention that the meters are not scientifically calibrated, and that it doesn't recognize accumulative small amounts under.1 gallons.

    "...Easy to use, accurate and takes the guess work out of what those lights are really telling me. I'd recommend this item." Read more

    "...Tested it on a 1gal jug 3 or 4 times. It seems to be accurate each time...." Read more

    "...after the first year, I started to notice problems with one not measuring flow rate anymore, even though the battery was fine and the screen still..." Read more

    "Pretty accurate just out of the box.________________________________________________________Ok, now it's 5 years later...." Read more

    28 customers mention12 positive16 negative

    Customers are mixed about the battery of the timer. Some mention that it's good, while others say that it died after only a few uses. The compartment was wet, and the seals had failed, allowing the battery to short out.

    "...I assume the battery is user replaceable, but it is not a standard battery (like AA or AAA)...." Read more

    "...report that the device can count from one to ten and it didn't kill the battery...." Read more

    "...battery compartment leaked, corroding the battery terminals and killing the battery...." Read more

    "...and entire pool refills. My first one lasted seven years. Battery was still good. I thought it be wise to replace the battery. Requires a CR2022...." Read more

    130 customers mention5 positive125 negative

    Customers are dissatisfied with the leakage of the timer. They mention that it terribly leaks from the seams, the battery compartment, and the female connection. Some say that the meter tends to get waterlogged and stop working.

    "...at least 6 -9 pinhole size streams in ALL directions & major water in the battery compartment. I am outside of Amazon's return policy time limit...." Read more

    "...I tried changing the battery but still didn't work. it is not water proof." Read more

    "...Same problem. Battery compartment fills with water in a device that was designed for Water! Will not waste my money on this brand again." Read more

    "...It does leak some connected to my dripline system...." Read more

    40 customers mention0 positive40 negative

    Customers are dissatisfied with the connector. They mention that it comes apart on the female connection end, the female side is very thin, and it snaps on its first use. The connector cracks off and the two moving parts just pop apart.

    "...It worked perfectly for a while but then it actually came apart on the female connection end...." Read more

    "...was to tighten the hookup, but when I went to tighten it the whole female end fell off." Read more

    "...that the connection point to the hose bib is very fragile and it will snap off with very little sideward pressure applied..." Read more

    "...Plus it's all made of plastic so it actually sheared off at the connection to the hose.Do not buy this...." Read more

    35 customers mention0 positive35 negative

    Customers are dissatisfied with the material of the timer. They say it's not durable, weak, and cheap. The faucet connection side is all plastic and it leaked. Customers also mention that the connector is cheap and comes apart.

    "...The tool is great, but keep in mind, it is 100% plastic...." Read more

    "I just bought 2 of these. I always have 4 in use. They will break, they're plastic...." Read more

    "...The whole unit and hose connections are plastic so it is necessary to hold the hose when reeling out the hose and I think it would be fairly easy..." Read more

    "...It is plastic so be very careful tightening the connections and use fresh washers so you don't have to over-tighten the connections to stop leaks...." Read more

    Functional and practical water meter
    4 Stars
    Functional and practical water meter
    This water flow meter is quite basic, but seems to work well in 'casual' applications where high accuracy is not required.The meter is equipped with a female 3/4" hose fitting on top and a male 3/4" hose fitting on the bottom. Actually, as some have reported elsewhere, the male thread is not tapered at all and some might view this as a problem, but I think in the majority of applications for which this unit is designed, this is an appropriate thread.The meter has two displays that can read in either gallons or liters. The display reads whole numbers to three digits, plus one decimal position. Both displays read the same number of gallons/liters that have passed through the meter since it was reset. The top display can be reset by briefly pressing the left side button, while the lower display can be reset by holding in the right side button for a few seconds. This way, you can use the top display to record the amount of water that has passed through during an episode (e.g. during one watering session of a garden), after which you press the left button and reset that display, while leaving the lower display still showing its reading. The lower display can then act as an accumulated water reading that you reset less often (this is why the meter requires you to hold the button for a longer time, to prevent inadvertent resetting).I should note that this meter does NOT show flow RATE (e.g. 'gallons per hour'). It simply shows how many gallons/liters have passed through it since it was last reset, irrespective of time. If you want to know RATE, you can allow the meter to measure water over a fixed period of time, perhaps for one minute or one hour.The meter is powered by a single CR2032 wafer battery, which can be accessed by unscrewing the water-proof rear cover; it has a slot that fits the edge of a coin to unscrew it, and an O-ring seals the meter innards. The meter is intended for outdoor use, and is water resistant against rain and splashes.It appears that a small brass pinwheel is used to do the measurement, so any debris that can get stuck around the wheel could prevent accurate measurement. It is difficult to see this part clearly, so I am not certain of the details.To save battery power, the display blanks out if no water has flowed in a while. As soon as water flows again, the display turns back on automatically.I used this meter to record gallons per minute (I reset the display, ran the water for one minute, and got the 'gpm' reading from the display) in order to do a water capacity calculation for a process that would utilize the water from a spigot in my home. It worked as expected.
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    Scott
    5.0 out of 5 stars Exactly as advertised
    Reviewed in Canada on October 2, 2023
    Item Package Quantity: 1Verified Purchase
    Daniel
    1.0 out of 5 stars Nunca sirvió
    Reviewed in Mexico on May 6, 2022
    Item Package Quantity: 1Verified Purchase
    Dan
    4.0 out of 5 stars Good product - one design flaw though...
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    Item Package Quantity: 2Verified Purchase
    Diana Hernández
    5.0 out of 5 stars llego en tiempo
    Reviewed in Mexico on September 30, 2019
    Item Package Quantity: 2Verified Purchase
    Topjor
    1.0 out of 5 stars Still dreaming
    Reviewed in India on December 15, 2019
    Item Package Quantity: 1Verified Purchase