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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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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TDS Meter, Digital Water Tester - Accurate and Reliable, Measures TDS, EC & Temperature (°F/°C), 0-9990ppm, Water Test Meter for Drinking Water, RO/DI System, Aquariums, etc

Product ID: 44553954

⚡Titanium alloy probe for precision

💡Backlit LCD with auto-lock display

📊3-in-1 TDS, EC & Temp measurement

B/.45

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Stay ahead of water quality with precision and ease!

SMART AUTO OFF - Saves battery by shutting off after 2 minutes of inactivity, so it’s ready when you are.
EFFORTLESS READINGS - Big backlit LCD with auto-lock ensures you never miss a stable measurement, even in low light.
PRECISION YOU CAN TRUST - Titanium alloy probe + intelligent chip deliver lab-grade accuracy for your water quality needs.
TRIPLE CHECK YOUR WATER - Simultaneously measures TDS, Electrical Conductivity, and Temperature for comprehensive insights.
VERSATILE WATER TESTING - Perfect for drinking water, RO/DI systems, aquariums, hydroponics, pools, and spas—stay ahead of contamination.

The HoneForest TDS Meter is a professional-grade digital water tester featuring a premium titanium alloy probe and intelligent chip for highly accurate TDS, EC, and temperature measurements. Its large backlit LCD with auto-lock function ensures easy, stable readings, while the device’s auto-off feature conserves battery life. Ideal for monitoring drinking water purity, RO/DI systems, aquariums, hydroponics, pools, and spas, this compact and reliable meter empowers you to maintain optimal water quality effortlessly.

Specifications

ASIN	B073713G5F
Best Sellers Rank	#2,100 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #86 in Pool Chemicals & Water Testing Products
Color	White
Customer Reviews	4.5 4.5 out of 5 stars (16,476)
Date First Available	May 31, 2017
Display Style	LCD
Included Components	1 x TDS Meter, 1 x Instruction, 1 x portable leather bag, 1x color box
Item Package Quantity	1
Item Weight	1.62 ounces
Item model number	HFTDS-M7
Manufacturer	HoneForest
Material	Plastic
Part Number	HFTDS-M7
Power Source	Battery Powered
Product Dimensions	6.29 x 1.14 x 0.59 inches
Size	6.3 x 1.18 x 0.62 Inch

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