TDS Meters

Knowing the dissolved solids level of your hydroponic solution is critical when adding supplements and maintaining optimum levels of nutrients. These professional quality TDS meters will give you accurate information on your solution’s total dissolved solids. Some combine TDS and EC readings making conversions automatic. Want the fastest, most abundant growth possible? Get reading!

TDS Meter

Features an easy-to-read LCD screen, a hold function that saves measurements …

~~$37.00~~ $29.95
Combo Meter

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

~~$314.95~~ $304.95
EC/TDS Tester

The DiST5 (Dissolved Solids Tester) has a dual-level LCD that displays EC/ TDS and …

~~$130.95~~ $125.95
GroChek Combo

Continuously monitors the three most crucial nutrient parameters in hydroponic …

~~$246.95~~ $183.50
GroChek EC

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

~~$114.95~~ $104.50
GroChek pH/TDS

Equipped with two large LCDs for easy-to-read measurements, even from …

~~$210.95~~ $183.50
GroChek TDS

This water-resistant TDS meter features housing and cable connections that …

~~$114.95~~ $104.50
Guardian Monitor

Allows you to optimize EC, pH and temperature as the crop progresses through …

~~$398.95~~ $390.50
Portable Meter

Dials located on the front panel makes calibration quick and simple, even for …

~~$283.95~~ $249.50
PPM Pen

The ultimate pen for measuring conductivity and temperature!

~~$99.50~~ $92.95
Primo TDS Tester

Afast and dependable way to measure the Total Dissolved Solids in water samples.

~~$40.95~~ $36.95
Truncheon Meter

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

~~$144.95~~ $138.50