pH Meter for Hydroponics PPM EC Meter for Plant Nutrients Simultaneous Measurement of pH Conductivity TDS Temperature for Reservoir Tank Water DWC Aeroponic Garden Indoor Outdoor Growing

This thing is awesome! Cheap and works well and seems to be very accurate. I'm pleased with it!

Excellent meter. Read the directions though and follow them! My hydroponically grown plants have really benefited from regular use of meter.

Not quite as accurate as my bluelab ph meter but gives a much faster readout and includes ppm as a bonus.

Seems to be in working order. Even comes with a solution to calibrate the PPMs. Very nice and easy to use. I realized my old PPM meter was WAY off. Quality/build seems to be ok. Curious how long the batteries last with daily use. Very easy to read. I only have to use one meter to test the pH and PPM. It even includes temp, which isnt as important to me because I let my water sit in room temperature 12 hours ahead of time. Pretty good deal for the price. I just hope it's easy to get a new probe when it's time. Will update if anything craps out.

Do NOT recommend. pH values from the same sample are from 5.5 to 7.5 just after “calibration”… You better buy something else.