There are 4 modes are: TDS temperature, EC temperature, TDS Fahrenheit, EC Fahrenheit, the lower right corner is the temperature display. Press the shift to switch between different modes. TDS test range: 0~9999PPM.
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Digital Water Quality Tester TDS EC Meter Range 0-9990 Multifunctional Water Purity Temperature Meter TEMP PPM Tester
Aliexpress UK
10-25-50-100-200x 5 in1 Aquarium Tester Strip. We have tested and sold for many years, and update regularly. Total Hardness.
eBay
Digital Water Quality Tester TDS EC Meter Range 0-9990 Multifunctional Water Purity Temperature Meter TEMP PPM Tester
Aliexpress UK
There are 4 modes are: TDS temperature, EC temperature, TDS Fahrenheit, EC Fahrenheit, the lower right corner is the temperature display. Press shift to switch between different modes. TDS test range: 0~9999PPM.
eBay
Barrow Computer Water Cooling Water-proof Leak- Seal Tester Air Pressure Airtightness Test Tool Leak Tester GJQM-01
Aliexpress UK
(5-in-1 Soil Tester for plants and lawns. 1x 5 in 1 Soil PH Tester（4 Battery Included ). PH value Test Range(12 levels): 3.5~9.0PH. Sunlight Test Range(9 levels): LOW-, LOW, LOW+, NOR-, NOR, NOR+, HGH-, HGH, HGH+.
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PH Meter High Digital Precision pH Tester Backlight Display Water Quality Tester Laboratory Drinking Water Hydroponics Tank Tool
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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PH Meter Digital PH Tester Water Quality Testers Acidity Measure Device Water Pool Aquarium Hydroponics Home Brew 0-14pH
Aliexpress UK
Step 1: Clean the surface soil layer’s all organic impurities which may affect the test results, such as the leaf or the root. Step 3: Insert the probe tip in the testing soil, the probe tip should LEVEL with root.
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2 in 1 For Swimming Pool SPA Water Chlorine Tester PC-102 PH Tester Water Quality Testing Device PH Chlorine Meter CL2 Measuring
Aliexpress UK
CL2 can also get eaten up if lot of nitrogen (from debris, pee, sunscreen, sweat). An electro-tester for testing pH and free chlorine (Cl2) levels in water for routine monitoring of pH and chlorine levels of swimming pools, spas and different water sources.
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1PC White Digital Water Quality Tester TDS EC Meter Range 0 to 9990 Multifunctional Water Purity Temperature TEMP PPM Tester
Aliexpress UK
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Smart Pen Type 3 in 1 Water Quality Tester PH Temp EC Meter for Laboratory Soil Meat Water Dough Soil Tester Analyzer
Aliexpress UK