TDS Testers

This handheld pen includes a large screen and a built-in thermometer at a great price.

Use to maximize plant health, prevent burn and ensure optimum plant yields.

A fast and dependable way to measure the total dissolved solids in water samples.

All you need for simple and reliable crop management and it’s all within arms reach.

Continuously monitors the three most crucial nutrient ranges in hydroponics.

Ideal for hydroponics applications where constant measurements are required.

Delivers accurate results with automatic calibration and temperature compensation.

Easy to use, just hang above the sample to be monitored or take it along with you!

Ships complete with a low-maintenance probe and complete instructions.

Easy to use, just plug it in and place the probes in your nutrient reservoir.

Large dials located on the front panel makes calibration quick and simple.

It is essential to KNOW the strength of the solution before feeding your plants.