The tool measured pretty accurately and gave instant results.

The tool measured pretty accurately and gave instant results.  Read Less

You’ve got everything you need to handle hydroponics, measuring the quality of your tap water, or the ph of a beverage, or a my...  Read More

You’ve got everything you need to handle hydroponics, measuring the quality of your tap water, or the ph of a beverage, or a myriad of other liquids.  Read Less

I think the seals are not as good as they could be, so this unit should not be submerged - if you do repeatedly, i think you'll...  Read More

I think the seals are not as good as they could be, so this unit should not be submerged - if you do repeatedly, i think you'll eventually have leaks and then failures.  Read Less

I tested this against our calibrated meters and the ph was consistently 0.

I tested this against our calibrated meters and the ph was consistently 0.  Read Less

For under 30 bucks, *and* with a coupon, i’d say it’s worth the cost.

For under 30 bucks, *and* with a coupon, i’d say it’s worth the cost.  Read Less

On 200ppm and 1100ppm solutions, this unit agreed to within 3 percent on every solution - and the others agreed to within 2 percent.

On 200ppm and 1100ppm solutions, this unit agreed to within 3 percent on every solution - and the others agreed to within 2 percent.  Read Less

I know that a couple that i've gotten have not shown results anything close to what the pool store has when i've taken samples ...  Read More

I know that a couple that i've gotten have not shown results anything close to what the pool store has when i've taken samples to them for testing.  Read Less