♥ 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. ♥ PORTABLE DESIGN-- Handheld TDS tester pen style and makes it conveniently fits in your pocket or bag and goes anywhere.
eBay
YAGO Hydrogen Water Tester 7-in-1 TDS EC H2 ORP Salt Temp PH Meter for Drinking Water Pool Aquarium-Accurate Water Tester
Aliexpress UK
Press shift to switch between different modes. 1 TDS EC (Battery Included.). Each startup mode is the default mode used before shutdown. 3.5 minutes automatic shutdown. Save power and extend battery life.
eBay
Bluetooth 6 in 1 TDS Meter Digital Water Tester EC TDS SALT SG Temperature PH Meter Aquarium Water Tester Pool Accessories
Aliexpress UK
It is a must-have item for family to test tap water, distilled water, bottled water and more. Multifunctional, practical and convenient. TDS range: 0-9990PPM. Conductivity range: 0-9990us/cm. Due to the difference between different monitors, the picture may not reflect the actual color of the item.
eBay
New Blue-tooth 7 in 1 PH/TDS/EC/ORP/Salinity /S. G/Temperature Meter Water Quality Tester for Drinking Water Aquariums PH Meter
Aliexpress UK
Press the shift key to switch between different modes. 1 X 3-in-1 Water Quality Tester. Wipe the electrode clean and insert it into the electrode protection sleeve. Size: 15.5cm X 3cm X 1.5cm. ③ After the value stabilizes, press the HOLD key and take out the reading.
eBay
Tuya ZigBee Intelligent Chlorin Meter 7in1 PH ORP Total Dissolved Solids Salinity Temp CL Test Meter Swimming Pool Water Tester
Aliexpress UK
Shift between TDS and Conductivity. Can be used in : Water purifiers and filters, food(vegetable, fruit)&drink quality monitoring, pools and spas, aquarium, hydroponic. Accuracy: ±2%. Press the switch ,place the electrode into the testsolution.
eBay
Digital PH Meter Water tester Multi-parameter Online Water Quality Monitor Tester For Aquarium Acidometer with EU/USplug
Aliexpress UK
Type: PH Tester. Accuracy: ±0.2PH; ±0.1PH (20°C). Resolution: 0.1PH. Handheld pen style and compact carrying case makes it conveniently fits in your pocket or bag and goes anywhere. Display: LCD Digital.
eBay
5-in-1 Water Tester Pool Salt Tester High Accuracy PH/EC/TDS/Salt/Temp Meter Water Analyzer for Drinking Water Aquariums Tester
Aliexpress UK
[TDS Digital Reference Table]. > 1000: not suitable for drinking. [Easy to clean] - The electrode protector can be unplugged to clean the probe and sheath. 1× Water Quality Tester （Without battery）. 32MM 1.25IN Pool Hose Connector Swimming Pool Filter Pump Pipe Joint Pool.
eBay
4 in 1 Digital Water Tester TDS Meter 0-9990 PPM Water Quality Tester Pen Backlit LCD Display for Pools Drinking Water Aquariums
Aliexpress UK
This unit is not water-tight and is not covered under the warranty if water enters the unit. This item can be used in: water purifiers and filters, food (vegetable, fruits) & drink quality monitoring, pools and spas, aquariums, hydroponics.
eBay
Digital PH Meter 7 In 1 PH/ORP/EC/TEMP/SALT/S.G/TDS Water Quality Tester High Precision Water Purity Tester for Drinking Water
Aliexpress UK