First rinse the electrode with distilled water and suck it with filter paper. Total concealed fit in your bag or pocket for easy, casual carrying. Users can use it directly. If the data is about 6.86 or the deviation is relatively small, no correction is required; if the value deviates from 6.86 relatively large, press and hold the CAL button for three seconds, let go after the screen flashes, and the automatic correction is in progress.
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PH-990 Digital PH Meter Water Tester Multi-parameter Online Water Quality Monitor Tester For Aquarium Acidometer with EU Plug
Aliexpress UK
【HIGH ACCURACY PH TESTER】- The glass probe of this pH tester is made of low-resistance glass sensitive film, and the response speed is within 0.1 seconds. TDS electrodes are made of agile, high-quality titanium alloy with perfect corrosion resistance.
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Digital pH Meter Water Quality Tester Pen Type pH Tester 0-14.00 for Drinking water, Aquarium, Swimming pool
Aliexpress UK
【5-in-1 MULTI FUNCTION】-This digital pH meter is designed with a 5-in-1 function, which is can be used to test the PH / TDS / EC / Salinity / Temperature of water. The measuring range is pH 0.00-14.00 (0.05PH accuracy), TDS 0-10000ppm, 10.1-200.00 ppt, EC 0-10000uS/cm, 10.1-19.99mS.20.1-400.0mS/cm, salinity 0.00%-25.00% and temperature 0-60℃.【LCD GREEN BACKLIGHT DISPLAY DESIGN】- This PH meter is designed with a clear LCD green backlight screen that displays the information in an intuitive layout. You can still read the digital even in a low visibility situation. With a handheld pocket size design, it is also convenient to carry out. And 5-minute auto-off design saves power and ensures battery life.【HIGH ACCURACY PH TESTER】- The glass probe of t.
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10 in 1 Digital PH Meter Water Quality Tester PH/Cl₂/TDS/EC/Hardness Hydrogen-rich Detector for Drinking Water Aquariums Pools
Aliexpress UK
Its user-friendly design makes it suitable for both beginners and experienced gardeners. Maintain healthy and thriving plants with this4-in-1 Digital Soil Tester, an essential tool for every gardener.
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5 In 1 Water Quality Tester Digital PH Meter TDS EC Meter Salinity Temperature Tester Water Filter Purity Pen with Backlight
Aliexpress UK
【Easy to Use】Simply insert the probe into the soil about 10cm deep, wait 10 seconds to get an accurate reading. (This tester cannot be used to test liquids. If the soil is too dry, do not insert it into hard soil. ).
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Digital PH Meter High Precision pH Tester Backlight Display Water Quality Tester for Laboratory Drinking Water Hydroponics Tank
Aliexpress UK
The probe should be inserted into the soil to a depth of two-thirds (more than 10 cm). Step 1: Clean the surface soil layer’s all organic impurities which may affect the test results, such as the leaf or the root.
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3 in 1 Digital PH /TDS/ EC Meter Tester Thermometer Pen Water Purity PPM Filter Hydroponic for Aquarium Pool Water Monitor Tools
Aliexpress UK
Small and lightweight, it is ideal for any growroom.
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Digital PH/TDS/EC Meter Tester Thermometer Pen Water Purity PPM Range 0-9999 Filter Hydroponic for Aquarium Pool Water Monitor
Aliexpress UK
Everything needed to monitor plant health in one device. ☀️ OPTIMISE GROWING CONDITIONS | Check sunlight exposure and soil fertility to support healthier growth, stronger roots and improved yields. Ideal for indoor plants, vegetable patches and lawns.
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Digital PH Meter Pen Water Quality Tester Accuracy 0.01 PH Temp Test Aquarium Pool Drinking Water Detector 0-14pH
Aliexpress UK