5-IN-1 Digital Water Quality Tester Waterproof pH TDS EC Temperature Meter Pool Kitchen Utensils 360° rotating reel makes it

360° rotating reel makes it easy to operate

designed to enhance tank vibrancy with 5-colour LEDs

And the air quality sensor with coloured indicators clearly shows when the air quality is good

USB hard disks

and eight ports are located on the cable extension

5-IN-1 Digital Water Quality Tester Waterproof pH TDS EC Temperature Meter Pool Kitchen Utensils 360° rotating reel makes itFeature: Multi functional water quality test pen, which can measure ph pH, solubility, EC conductivity, salinity and temperature. (Sea salt fresh water salt) It is a waterproof water quality test pen with five functions. It has high performance, pen design and fast numerical value. Parameters: Sea salt: Sea water salinity is the ratio of total dissolved solids to the weight of sea salt in sea water, usually expressed in grams per kilogram of sea