Red backlight = non-drinkable warning (>50 ppm), green backlight = directly drinkable (<50 ppm). 【Multipurpose Tds Tester】 Test the purity of drinking water to ensure it's safe and healthy, monitor if Reverse Osmosis (RO)/Deionization(DI) System works properly, whether filter need replaced, maintenance aquarium, hydroponics(test nutrients), well, pool, hot tub, spa and testing tap water, bottle water etc.
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RS485 Communication Multi-function Water Quality Tester Monitor PH ORP TDS EC CF Теmp Humidity Meter Aquarium Online Analyzer
Aliexpress UK
Before drinking a test, drinking water at ease, TDS on behalf of the total soluble solids content in the water, the lower the TDS value / the purer the water quality. TDS water quality testing pen 1.
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Yieryi BLE-C600 Bluetooth-compatible Water Quality Pen 7 in 1 PH EC TDS ORP SALT S.G TEMP Meter APP Intelligent Control Tester
Aliexpress UK
This water quality tester is designed to test pH and chlorine level for swimming pool and spa. It is easy to operate, no more chemicals need. Large screen quickly shows the test result with high precision.
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PH Probe Controller Sensor Digital 0-14PH Sensor Electrode Water Quality Meter
Aliexpress UK
Material:plastic. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Color:blue.
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BlueTooth PH EC TDS TEMP Salinity Meter Digital Drinking Water Quality Tester Smart Online Monitor APP Control for Aquarium Pool
Aliexpress UK
PH Range: 3.5-8 Ph (3.5-6.5 ACID, 7 NOR, 7-8 ALKALI). - PH Range: 3.5-8PH ( 3.5-7 Acid, 7-8 Alkaline). Step 5: Remove probe from soil and wipe clean after each use. Step 3: Adjust the position of the probe until the pointer on the dial swing slightly.
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2 In 1 Chlorine Detector PH & CL2 Meter Swimming Pool Spa Chlorine Monitor Tester Aquarium Hot Spring Water Quality Tester
Aliexpress UK
Press shift to switch between different modes. 3.5 minutes automatic shutdown. Save power and extend battery life. Size: 15.5cm 3cm 1.5cm. Accuracy: ± 2%. Temperature range: 0.1-80.0℃(32.0-176.0℉).
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2 In 1 Chlorine Detector PH & CL2 Meter Swimming Pool Spa Chlorine Monitor Tester Aquarium Hot Spring Water Quality Tester
Aliexpress UK
How to Use: Step 1: Clean the soil moisture probe. Step 2: Stick plant watering devices probe into the soil about 2-4 inches. Step 3:You can quickly get the moisture reading in less than 10 seconds. Step 4: Remove probe from soil and wipe clean after each use.
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2/3/4 in 1 PH ORP H2 Temperature Hydrogen-rich Meter Portable Pen Water Quality Purity Detector for Aquarium Pool Hydroponic
Aliexpress UK
A 5-in-1 Water Quality Tester from Mainland China, model number 9909, with a digital display featuring backlight. Accuracy: ±0.05pH. Resolution: 0.01pH. Accuracy: ±2% of reading. Accuracy: 0.01-5.00% (±0.1%) 5.10-25.00% (±1%).
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Yieryi 7 in 1 Salinity Meter PH TDS EC ORP S.G TEMP Water Quality Tester IP67 Swimming Pool Monitor Aquarium Analysis Instrument
Aliexpress UK