Yewhick Pool Salt Tester, Digital Salinity Tester for Saltwater Pool, 7 in 1 pH ORP Salt Meter for Pools Aquarium Sodium Chloride Swimming Pools Hot Tub Spas

Awesome product, work right out of the box

I service 30 pools weekly and this little gadget saves me time and it's pretty accurate. Wish I found it when I had 80 accounts! Lol I did not need to calibrate it, so I was able to use it right out of the box.

It works a lot better than any test strip available.

Product seems to work fine. Fast delivery

Have had this for a couple of weeks. I cannot get it to read accurate pH for my salt-based hot tub - it consistently measures about .6 too high. I have gone through the calibration process twice - which works just fine using their pH samples but still measures high in the real world. Haven't used long enough yet to determine how accurate it is for TDS - will report back in that but disappointed thus far.

Good tester, but be darn sure of cap placement and be careful when you cap, otherwise you will bust the sensor wide open and it becomes useless.

Not very accurate and doesn't show what is testing for some of the different tests. Results do not compare to water tests done at hot tub store.