Digital TDS & EC Water Quality Tester – 0-9990 Ppm, Temperature Display (White)

This little white pen is super handy for checking your water.

It’s a digital TDS/EC meter that also reads temperature, measuring from 0 up to 9990 ppm.

Just dip it in to test the purity of your drinking water, aquarium, or hydroponics setup.

It’s a no-name brand, but it’s a brand new, functional tool made for the job.