Press shift to switch between different modes. NOT PH TESTER FUNCATION. 1 x Water Quality Tester Pen. 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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L74C Digital PH Meter Tester 4 in 1 TDS EC Temp High Accuracy Pen Type Tester Water Quality Tester
Aliexpress UK
ORP negative potential ±1999MV. Salinity 0-20%. The specific gravity of S.G seawater is 1.000-1.222. 2, TDS value 0-200000ppm. H2 hydrogen rich 0-2400PPb. EC value 0-200000㎲/cm. 1x 7 In 1 Tester Pen. PH value 0-14.
eBay
7 In 1 Digital Water Quality Tester ORP PH TDS EC Meter Salinity SG Temperature Tester Water Filter
Aliexpress UK
Product Function: Detect TDS value. Use of scenarios: daily drinking water, swimming pools, aquaculture water quality, agricultural water, daily water use, water quality testing. Water quality tester 1.
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5-in-1 Water Tester Pool Salt Tester High Accuracy PH/EC/TDS/Salt/Temp Meter Water Analyzer for
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. PORTABLE DESIGN-- Handheld TDS tester pen style and makes it conveniently fits in your pocket or bag and goes anywhere.
eBay
5-in-1 Water Tester Pool Salt Tester High Accuracy PH/EC/TDS/Salt/Temp Meter Water Analyzer for
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. PORTABLE DESIGN-- Handheld TDS tester pen style and makes it conveniently fits in your pocket or bag and goes anywhere.
eBay
WiFi Tuya Smart PH Meter Data Logger Temp TDS Salinity S.G. EC ORP Water Tester Monitor Analyzer for
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. PORTABLE DESIGN-- Handheld TDS tester pen style and makes it conveniently fits in your pocket or bag and goes anywhere.
eBay
5 In 1 Digital PH TDS EC Meter Salinity Temperature Tester Conductivity Water Filter Purity Pen with
Aliexpress UK
Press shift to switch between different modes. 3.5 minutes automatic shutdown. Save power and extend battery life. Accuracy: ± 2%. Temperature range: 0.1-80.0℃(32.0-176.0℉). 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.
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8 in 1 WiFi Tuya Aquarium Water Quality Tester Smart PH Meter ORP/TDS/EC/SALT/TEMP Monitor for
Aliexpress UK
ORP negative potential ±1999MV. Salinity 0-20%. The specific gravity of S.G seawater is 1.000-1.222. 2, TDS value 0-200000ppm. H2 hydrogen rich 0-2400PPb. EC value 0-200000㎲/cm. 1 x 7 In 1 Tester Pen.
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RS485 Communication Multi-function Water Quality Tester Monitor PH ORP TDS EC CF Теmp Humidity Meter
Aliexpress UK