Can this used to test bath water?

Since it will register up to 120 degrees and is advertised for hot tubs, spas and pools, I’m guessing that it would be right for the job. I use it in my heated swimming pool and it works great!

how long does it take to get an accurate reading

As long as it takes to pull the thermometer out of the water and read it.

Can the top be taken off so it sinks? I'd like to tie it to the ladder and get the temp reading deeper.

Yes. The top provides buoyancy and press-fits onto the thermometer. Separating them and the thermometer sinks like rock. To add a line you will need an eye fastened to the thermometer, or as you indicate "tie it to the ladder". No problem.

Every one I've purchased lasts only a few months. The thermometer comes loose from the backing making it useless. Anyone have this experience?

I have not had an issue with mine. I have had it for 5 months. It is in my koi pond. Not sure if a chlorinated pool would cause this.

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[Large Floating Pool Thermometer] eLander Pro Water Thermometers, for Outdoor & Indoor Swimming Pools, Spas, Hot Tubs, Fish Ponds

Product ID: 30586920

Details

Age Range (Description)
Adult
Brand
eLander
Color
White
Display Type
Analog
Item Length
7.3 Inches
Model Name
A15-EL

📏Large 7.3-inch display

🌡️Accurate temp readings ±0.5°F

🛡️Shatter-resistant durable build

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€ 24.70

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌊 Dive into perfect pool temps with precision and style!

BUILT TO LAST - Crafted with premium, shatter-resistant materials designed to withstand outdoor elements and rough handling.
BOLD CLEAR DISPLAY - Oversized analog dial ensures effortless visibility from across the pool—no squinting required.
PRECISION AT A GLANCE - Instant, highly accurate temperature readings in both Fahrenheit and Celsius to keep your pool perfect.
UNIVERSAL COMPATIBILITY - Ideal for all water bodies—swimming pools, spas, hot tubs, aquariums, and fish ponds alike.
EFFORTLESS USE STORAGE - Comes with a strong nylon string for secure floating and easy retrieval, plus compact storage.

The eLander Pro Large Floating Pool Thermometer delivers fast, accurate temperature readings up to 120°F (50°C) with a large, easy-to-read analog display. Built from durable, shatter-resistant materials and equipped with a strong nylon string, it’s designed for reliable use in all outdoor and indoor water settings including pools, spas, hot tubs, and fish ponds. Trusted by thousands, it’s the essential tool for maintaining your ideal water environment.

Specifications

ASIN	B01GHM6XEQ
Additional Features	High Accuracy
Age Range Description	Adult
Best Sellers Rank	#6,970 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #15 in Pond Test Kits & Thermometers
Brand Name	eLander
Color	White
Customer Reviews	4.3 4.3 out of 5 stars (5,397)
Display Type	Analog
Global Trade Identification Number	00701979997550
Indoor Outdoor Usage	Outdoor
Item Length	7.3 Inches
Manufacturer	eLander
Model	A15-EL
Model Name	A15-EL
Outer Material	Plastic
Part Number	A15-EL
Product Care Instructions	Hand Wash Only
Response Time	500 Milliseconds
Reusability	Reusable
Smart Home Compatibility	Not Smart Home Compatible
Style Name	Contemporary
UPC	701979997550
Unit Count	1.0 Count
Upper Temperature Range	50 Degrees Celsius

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TrustScore 4.5 | 7,300+ reviews

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