InkbirdWireless Pool Thermometer and Receiver Set, Updated Version Floating Thermometer with Easy Read Display, Thermometer for Swimming Pool, Hot Tub, Hot Spring（Battery not Included）

[22DEC21] update: device apparently works about 6 months on a pair of AA batteries. I'm satisfied with that. Put new batteries in there, tossed it back in pool, and we are back in business. So far, loving this thing. I can see a little condensation inside the screen, was a bit worried about that, but hasn't presented any problems. No sign of rust or leaking inside.I had been looking for a pool therm. A long time ago I had one that hung on a handrail from a string, but that handrail is long gone. I've been using an IR gun to measure it, but I wanted something I could see from inside the house - RF!This has worked perfectly. I bought it two weeks ago and immediately added batteries and tossed it into the pool. The pool sensor floats all over the pool, but mostly hangs out in the spa overflow, where it is subject to continuous abuse. The monitor is sitting on my kitchen island, about 30' away, indoors. When you test any RF instrument, the first thing you worry about is range and interference (from other RF devices, and blockage by building materials etc). To this date, the connection has been uninterrupted.Pool sensor has a pliable silicone (?) gasket that keeps the water away from its innards. While it seems like a good design, that gasket is the only thing between you and a failed device. Mine has kept the water out fine, so I trust it. Just make sure to screw the thing together tightly or water will enter and you'll be :(Kitchen monitor has no backlight. Not a problem for me, but would have been nice.Monitor has various MAX and MIN functions that I don't care about. Resetting them requires button presses on the back, and referring to the manual, which I'm about to toss in the recycler, so I don't care about all that. Monitor has a fold-out stand that will allow it to stand up by itself. It also has the ubiquitous keyhole mounting hole for wall-mounting.Manual is super-small. Get out the magnifier, old folks (me). But it is complete, with more information than you need (if you're installing multiple sensors in the same pool, god help you). I got mine up and working in 2 minutes, no problem. The manual diction was pretty good - a little chinglish, but far better than many other devices of this nature. No complaints there.* One surprising feature: it appears that the floating pool sensor is actually a receiver as well. I can change the temperature units on the kitchen monitor from F to C and the pool sensor changes as well. I'd guess that when the units is changed on the kitchen display, it's queue'd in a transmit buffer. Immediately after the pool sensor sends its temperature, it briefly listens for a response from the kitchen monitor. When the kitchen monitor receives its message, it responds with any changes and they are registered in the pool sensor. Then the pool sensor goes back to low power mode. I'm guessing transmit frequency is every 10 seconds.

I have bought TWO of these and they are total junk. With both I added "waterproof grease" to help waterproof the unit and kept fresh desiccant inside and they still leak, the screen fogs over and they totally stop working and die. I even created a float to keep the main seal up and out of the water and also tied them off in a corner of the pool where it wouldn't get bumped or push under the water and they still get moisture inside and die. A constant source of frustration and a total waste of time and money. Oh, and they eat batteries like crazy. I wish zero stars was an option.

I really like the idea of wireless temperature monitoring for my inground saltwater pool and have bought a number of different brands in the last 4-5 years. None of the previous units have lasted more than 3-6 months during each summer and they all seem to eventually leak, corrode and then fail. In an effort to get a unit that lasts more than one season, this year I decided to take a more comprehensive approach.I chose the INKBIRD model for two reasons; I have other INKBIRD products that have proven very reliable and this unit was half the cost of what I had spent previously. Regardless of the brand, all of my previous failed units had either leaked from the screw-on top or the bottom sensor. Knowing how corrosive salt water is to products used in my pool and boat, I decided to use marine sealant to ensure that this unit remained watertight throughout this season. Since the batteries in the floating unit would need to be replaced periodically, the sealant I selected was NOT permanent. I also decided to place a desiccant packet inside the unit to absorb any moisture and show me the level of humidity (it turns pink) when I change the batteries.As shown in the pictures I have shared, I carefully removed the screw-on top and the rubber gasket. First, I added the new batteries and paired it with the base (if you miss this, you will have to break the seal later). Then I used the 3M Silicon (shown) to do the following; coat the (internal) bottom connector, placed the desiccant packet inside, coated the base of the threads (using a toothpick), replaced/seated the rubber gasket, coated the top of the rubber gasket, and then tightly screwed on the top. After letting it cure 24 hours, I placed it in the pool and so far, it is working perfectly.When the batteries eventually need replacement, I will simply break the seal, peel off the old silicon and repeat this process (I have done this before using the same 3M silicon for other marine products and connections). Until something more watertight comes along, I plan to use this proven method to keep the unit safe from leaks and corrosion. Given the sale price and my past satisfaction with INKBIRD products, I bought a second unit to use in our hot tub during the winter.An additional note for those of you that have a saltwater pool, make sure you use sacrificial zinc anodes to ensure your corrosion is minimized. You can buy anodes here on Amazon that can be placed in the skimmer baskets, it is cheap protection!In closing, I will try to remember to come back at the end of this season and update this review with the product’s longevity using this approach.UPDATE on 4/15/2025:After two years, the probe and receiver batteries ran down and lost connection in February. I just opened up my pool, used a knife to remove the silicon, and opened the unit - bone DRY! After replacing the batteries, everything is working like new and ready for the new season. I just applied a new coat of silicon and closed up the unit for another two years of service. Please check out the new pictures of the old silicon ring I removed, the dry packet inside, and the unit ready to go again! It's the best pool temp probe purchase I ever made by far!

I purchased this in 2022 (lasted 3 years). I have purchased several Ink Bird products and consider design and functionality to be just what I'm looking for everytime. This floating pool thermometer is great but many reviews complain of flooding. Mine lasted 3 years and slowly failed. When you begin to see condensation under the LED display that can't be wiped off mositure is intruding into the device and it fails. It was also inexpensive so let's not be too judgemental here. I just bought another but InkBird- I'd gladly pay twice the cost if Ink Bird could put a little more improvement in sealing the floating transducer unit to mitigate moisture intrusion and making it last twice as long or longer.

It works great. Just put grease on the threads to seal it. You should do that with any of these devices. Many electronics do not work with rechargeable batteries. This does, but it will read low battery for months even though it's fine.