If you want your best harvest you need a Koster Moisture Tester.
Announcements
Microbe Life Hydroponics
Koster Moisture Tester is now a Distributor of Microbe Life Hydroponics!
Do you want growth, bigger buds, bigger produce, and bigger bloom? We now have products for you.
New Products
KOSTER KMT-420
If you're in the Cannabis business, you will need one of our new testers created for you. From Farm to Dispensary, we have you covered.