Press shift to switch between different modes. 1 x Water Quality Tester Pen. NOT PH TESTER FUNCATION. 3.5 minute automatic shutdown. Save electricity and extend battery life. ③ After the value stabilizes, press the HOLD key and take out the reading.
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2pcs TDS PH Meter Digital Water Tester 0.01ph High Accuracy PH Meter 0-9990ppm Temperature TEMP PPM Tester
Aliexpress UK
Press shift to switch between different modes. 3.5 minutes automatic shutdown. Save power and extend battery life. Temperature range: 0.1-80.0℃(32.0-176.0℉).
eBay
3in1 Water Quality Detection Pen Household Drinking Water Purity EC Meter High Accuracy TDS Meter 0-9990ppm Digital Water Tester
Aliexpress UK
🌊 5-in-1 Digital Water Quality Tester – pH, TDS, EC, Salinity, Temperature | Hydroponics, Aquarium, Drinking Water. 🎯High Accuracy – ±0.05 pH, ±2% EC/TDS readings. 🧪Key Features Accuracy: ±0.05 pH.
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Soil PH and Humidity Tester Nutrient Water Tester High Precision Household Gardening Flower Grass Fertility Meter 1PC
Aliexpress UK
Conductivity: 0-9990us / cm, TDS:0-9999ppm. 1/2PCS Water Testing Pen. -5 minutes automatic shutdown. Save power and extend battery life. -Accuracy: ± 2%. -Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.
eBay
TDS Meter 0-9990ppm Digital PH Meter 0.01 PH High Precision Pen Water Tester TDS&PH Meter 0-14 PH LCD PPM Tester Aquarium Filter
Aliexpress UK
RANGE : 0-9990 ppm. Used to test the purity of the water quality of the filter. ACCURACY : +/- 2%.
eBay
Flower PH and Humidity Tester High Precision 1PC Detector Nutrient Water Tester Household Soil Gardening Grass Fertility Meter
Aliexpress UK
Ideal for any aquarium, the fishing industry, swimming pools, spa. school laboratories, food & beverage, drinking water etc. readings are quickly display on a large lcd display.
eBay
TDS Meter Digital Water Tester 0-9990ppm Drinking Water Quality Analyzer Monitor Filter Rapid Test Aquarium Hydroponics Pools
Aliexpress UK
Mini TDS Pen Design: Portable, lightweight, and compact for on-the-go water testing. Widely Used: Ideal for testing in professional and personal settings, including aquariums, hydroponics, pools, and drinking water systems.
eBay
PH Meter 6 in 1 Digital Water Tester EC TDS ORP CF Temp Drinking Water Quality Analyzer Monitor Aquarium Hydroponics Laboratory
Aliexpress UK
The higher ppm value is,the more substances in the water. Widely apply to test water quality,for RO system, aquariums, hydroponics, pools, spas,etc. 2 x TDS Tester. Range :0-9990 ppm. ON/OFF: on and off.
eBay
4 in 1 Digital Water Tester TDS Meter Backlit LCD Display TDS EC & Temperature(°C °F) Meter for Pools Drinking Water Aquariums
Aliexpress UK