What kind of battery does it have?

1 x 3V button battery CR2032 , it's included in the water tester. Sincerely hope you enjoy the products we sell on Amazon!

how can i test if the unit is accurate could i use distilled which i assume should be zero, thanks tom

Thanks for your question. This TDS meter is pre-calibrated in factory, no need calibrate again by customer, we do this to prevent as many calibration related mistakes as possible, and it's easier to use. To maintain the accuracy, it's better to rinse the probe with distilled water after each use. For your mentioned distilled water, it should read 0 ppm theoretically, but in actual application, if you can't keep test condition very clean, it may read 0-2ppm usually.

Can this also check for ph ?

It Does not. It measure TDS , EC and Temperature 3 in 1. PH Meter is another tester.

Has anyone else experienced this reading into the hundreds on very low ppm water after a couple weeks of use? solutions?

Are you rinsing the probe with distilled water after each use and patting it dry, if not, dried solids will build up on the probe and render the measurements inaccurate.

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We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.

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Our Other Brands:Hewyn|Selfship

Description

📈 Elevate your water quality game with Phantom precision!

SMART POWER SAVER - Automatically shuts off after 2 minutes of inactivity to extend battery life.
EFFORTLESS OPERATION - Auto-lock function stabilizes readings instantly, so you never miss a beat.
LIGHTWEIGHT PORTABLE - Compact 46g design fits perfectly in your pocket or lab kit for on-the-go testing.
READ ANYTIME ANYWHERE - Large backlit LCD ensures crystal-clear readings even in low light environments.
TRIPLE CHECK PRECISION - Professional-grade TDS, EC, and temperature measurements in one sleek device.

The Ginarelo Phantom Cables WDVB 061 is a professional 3-in-1 TDS, EC, and temperature pen featuring a large backlit LCD for easy reading, auto-lock for stable measurements, and an auto-shutdown function to conserve power. Lightweight and portable, it delivers fast, accurate water quality analysis ideal for professionals and enthusiasts alike.

Specifications

ASIN	B073713G5F
Batteries Required?	No
Batteries included?	No
Battery Cell Type	Lithium Ion
Colour	White
Customer Reviews	4.5 4.5 out of 5 stars (15,539)
Date First Available	31 May 2017
Display style	LCD
Included Components	1
Item Package Quantity	1
Item Weight	46 g
Item model number	HFTDS-M7
Manufacturer	Ginarelo
Material	Plastic
Part Number	HFTDS-M7
Power Source	ac
Product Dimensions	15.98 x 2.9 x 1.5 cm; 46 g

Reviews

M**A

Recomendado

Muy buen instrumento de medición

28.01.2026

D**K

Like described

9.09.2025

U**R

It works great!

28.02.2026

L**E

Great product

18.05.2025

N**N

Efficient

3.02.2024

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