When you meet calibration error-like you would like to calibrate pH 6.86 but get 4.01 value, please

Long press the "HOLD/TEMP" & "MODE/CAL" Button for 3-5 seconds to restore factory Settings, and then use the powder pack for calibration the Digital pH meter

It took a long time to calibrate or after calibrating, the reading was tested but the reading came out "0" value?

Please check whether the glass probe was broken. If not that means you met calibration error. For this issue, please long press the "HOLD/TEMP" & "MODE/CAL" Button for 3-5 seconds to restore factory Settings, and then use the powder pack to calibrate

For better using experience of the pH meter for water

We recommend to soak the pH meter in clear water for 5 minutes before starting calibration after receive the product or long time no use. Because it may cause inaccurate readings if you immediate use for the first time or long time no use.

Accuracy of this digital pool water tester

±0.01 pH Resolution, pH Range: 0.00 to 14.00 pH; 1ppm, ±0.1ppt Resolution, TDS Value: -9990ppm; ±32.9˚F/0.5˚C Resolution,TEMP: 32 to 140˚F (0 to 60˚C); Auto Power-Off: 5 minutes without operation.

Why isn't the pH meter calibrating correctly after following the temperature and solution instructions?

Please check if the product has gotten water inside. If it has, please disassemble the product, shake out the water, and then let it air dry naturally.

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

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pH Meter, 3-in-1 TDS Meter Digital Water Tester with 0.01 High Precision, Water Tester for Drinking Water with 0-14 pH Test Range, TDS/Temp/pH Tester for Wine, Aquarium, Pool, Garden, Bath and Water

Product ID: 267856059

Details

Battery Description
Alkaline
Brand
PmoYoKo
Color
Grey
Item Weight
0.17 Kilograms
Product Dimensions
1.5"W x 7.2"H

🔬3-in-1 pH/TDS/Temp

⚖️0.01 pH precision

🌡️Temp range 0-60°C

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€ 37.52

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Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Master your water quality game with precision and style!

POCKET SIZED PORTABILITY - Compact and lightweight design fits in your pocket—perfect for on-the-go testing from pools to wine fermentation.
TEMPERATURE COMPENSATED ACCURACY - Advanced ATC technology delivers reliable pH results across 32°F–140°F without manual adjustments.
ALL IN ONE WATER QUALITY ANALYSIS - Seamlessly measure pH, TDS, and temperature with a single sleek device—ditch the clutter.
LAB GRADE PRECISION AT YOUR FINGERTIPS - Experience ultra-accurate 0.01 resolution pH readings trusted by professionals.
SMART BACKLIT DISPLAY FOR ANY ENVIRONMENT - Auto-activated bright backlight ensures effortless readings day or night, even in low-light grow tents.

The PmoYoKo 3-in-1 Digital pH Meter combines high-precision 0.01 pH resolution with simultaneous TDS and temperature measurement, all in a compact, pocket-sized device. Featuring an auto-activated backlit display and advanced temperature compensation, it delivers lab-grade accuracy for diverse applications—from aquariums and pools to wine and hydroponics. This all-in-one tester simplifies water quality monitoring, empowering professionals and enthusiasts to maintain optimal conditions effortlessly.

Specifications

ASIN	B08RD488NP
Battery Description	Alkaline
Best Sellers Rank	#14,717 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #20 in Lab pH Meters
Brand Name	PmoYoKo
Color	Grey
Customer Reviews	4.1 4.1 out of 5 stars (2,232)
Global Trade Identification Number	00721678690132
Included Components	1*pH Meter Digtal, 3 pH buffer powder
Item Dimensions W x H	1.5"W x 7.2"H
Item Weight	0.17 Kilograms
Manufacturer	PmoYoKo
Model	EZ-9901
Mounting Type	Tabletop
Part Number	PH-9901
Smart Home Compatibility	Not Smart Home Compatible
Temperature Accuracy	0.5
Temperature Reading Accuracy	plus_minus_0_point_5_degrees_celsius
UPC	692041265243 692041265113 721678690132 692041265106
Unit Count	1.0 Count
Upper Temperature Range	140 Degrees Fahrenheit
Voltage	1.5 Volts

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