Pardon my ignorance but after you get the reading what do you compare the number to? I didn't receive any chart.

You do not compare it to anything the number is the amount of electro conductivity in your water(ppm of dissolved solvent witch are mostly minerals)Pure water that reeds 0 ppm does not conduct electricity. If you want clean drinking water try to filter it to were it is around 50 ppm that way you still get some minerals witch your body needs. If you are using it for mixing fertilizer for your plants you should not exceed 600 ppm when they are small and do not exceed 1500 ppm when plant are larger with more roots.

The instructions say it's warranty is for 3 years. It's odd that there is no company name as to who it would be returned to. Who is the manufacturer?

Hi LmariThe brand name iSpring is stamped on the TDS meter itself. We are currently updating the manual for the TDS meter due to the typo in the warranty. This meter has a 1 year warranty and not 3. If you are experiencing any problems with this product please contact us at (678)261-7611.ThanksiSpring

Do it need a calibration solution?

Sure it works right out of the box, but i it accurate? The only way to know is with a calibration solution. Most meters are quite close when they are new, but as time goes by, the accuracy can decline. If you want accurate readings, get some calibration solution.

Essential minerals are also picked up by TDS meters and that is not an effective to way to check or test water quality. True?

True. TDC=S meters usually measure the EC of particles to indicate TDS (Total Dissolved Solids) Dissolved solids can be good or bad.

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iSpring TDS 3-Button Digital Water Quality Test Meter with Temperature Test Function

iSpring TDS 3-Button Digital Water Quality Test Meter with Temperature Test Function

Product ID: 220013887

Details

Age Range (Description)
Adult
Brand
iSpring
Colour
Pocket Size
Included Components
1 TDS meter
Special Feature
High Accuracy

📊Instant ppm reading

🌡️Built-in temperature test

🛡️Durable metal casing

E£ 558

Duties & taxes included

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Description

💧 Elevate your water IQ—because pure water is the new luxury.

TRUSTED ACCURACY - Industry-favorite with 4.3-star rating and 864 reviews—join thousands who rely on iSpring’s precision.
RUGGED PORTABLE - Compact metal body with protective case—perfect for on-the-go professionals and home use.
UNIVERSAL APPLICATION - Ideal for tap water, hydroponics, aquariums, pools, and industrial water testing—one tool, endless uses.
DUAL FUNCTION PRECISION - Seamlessly switch between TDS and temperature tests for comprehensive water quality insights.
INSTANT WATER PURITY CHECK - Get real-time TDS readings in just 2 seconds—know exactly what’s in your water.

The iSpring TDS 3-Button Digital Water Quality Test Meter delivers fast, accurate readings of Total Dissolved Solids and water temperature. Housed in a durable metal casing and equipped with a user-friendly digital display, it’s designed for professionals and home users alike. Perfect for monitoring tap water, filtration systems, hydroponics, and more, this compact, battery-powered device ensures you never compromise on water quality.

Specifications

ASIN	B00IDBZ1A2
Age Range Description	Adult
Best Sellers Rank	#39,899 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #91 in Conductivity Meters & Accessories
Brand Name	iSpring
Colour	Pocket Size
Customer Reviews	4.3 4.3 out of 5 stars (870)
Display Type	Digital
Global Trade Identification Number	00662425070015
Immersion Depth	15 Centimetres
Included Components	1 TDS meter
Indoor Outdoor Usage	Indoor, Outdoor
Item Type Name	High Accuracy TDS Meter with Temperature Function
Item Weight	50 g
Manufacturer	iSpring
Model Name	TDS 3-Button Digital Water Quality Tester
Model Number	TDS3-FBAK
Outer Material Type	Metal
Part Number	TDS
Power Source Type	Battery Powered
Product Care Instructions	Wipe Clean
Response Time	2 Minutes
Reusability	Rechargeable
Special Features	High Accuracy
Style Name	Digital
UPC	662425070015
Unit Count	1 Piece

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