Seawater PH is 7.9 to 8.5. Normal urine PH is 5.5 to 5.7. The total pH scale ranges from 1-14, with 7 considered to be neutral. A pH ＜ 7 is said to be acidic and solutions with a pH ＞7 are basic or alkaline.
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1PCS YF-S401 Water Coffee Flow Sensor Switch Meter Flowmeter Counter 0.3-6L/min Water Purifier Hall Sensor
Aliexpress UK
Ideal use to test for water, pools, aquariums, spas, hydroponics, food, wine and beer making and more. TDS: 1-19999ppm. TDS: +/-2%. EC: 1-19999μ s/cm. PH: 0.00-14.00ph. PH 6.86point Accuracy: +/-0.1ph.
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1PC White Handheld LED Digital Water Tester TDS EC Meter Range Household Water Purity Temperature Meter TEMP PPM Tester
Aliexpress UK
Display: Supports backlight. Range: 0-10000us/cm, 10.01- 19.99mS/cm, 20.1400.0mS/cm (Convert range automaticly). Accuracy: ±0.05 pH. Resolution: 0.01pH. Accuracy: ±2% F.S. Power source: 3x1.5LR44. Range: 0-10000ppm, 10.1- 200.0ppt (Convert sangeautomaticly).
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4 in 1 TDS Meter TDS EC Temperature(°C,°F) Meter, Instant Read Digital Water Tester Kits for Drinking Water PPM Test
Aliexpress UK
Help the salt chlorinator work more efficiently in the appropriate salinity value. Check the salt concentration of saltwater pool & hot tub that use salt chlorine generator. Test pool salt level- Salt range:0-9990ppm/10-100ppt.
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DN50 G2" Turbine Flowmeter Water Flow Hall Sensor Switch Meter for Water Heater
Aliexpress UK
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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Digital Water Flow Meter High Accuracy IPX5 Water Consumption and Flow Rate for Garden Irrigation Hose Brass Metal Flow Meter
Aliexpress UK
About this item【5-in-1 Water Quality Tester】Salinity Meter, EC Meter, TDS, PH, and Temperature tester. Salinity measurement range: 0~10000ppm/10.1~200.0ppt or 0.0-25%, salinity tester has an ATC function, which can decrease the error caused by the change of liquid temperature.【Two Salinity Meters】Digital PH meter can detect the salinity of edible salt, and it can detect the salinity of seawater too. Food salinity measuring range: 0.00-25.00%, seawater salinity measuring range: 10.1-200.0 ppt, 1%=10 ppt=10000 ppm. TDS and salinity units are the same, but when measuring salinity, the pH meter needs to be converted to salinity mode.【High Precision】The high precision algorithm chip and electrode of our digital ph tester ensure an accurate and fast re.
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Water Quality Detection Pen Household Drinking Water EC Meter 2in1 TDS Test Meter
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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Water Flow Meter with Brass Metal Thread High Accuracy Waterproof Hose Water Consumption Meter For Outdoor Garden Watering Tank
Aliexpress UK
It features a dial display and is made of durable plastic, making it suitable for outdoor use. With a length of 29 cm, it is also portable and easy to carry around.
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4 In 1 TDS Meter Water Salt Concentration SALT TDS EC Temp Meter Digital Water Quality Tester for Pools Aquariums
Aliexpress UK