The SM-1 is provides an easy to read single line TDS monitor that provides a digital readout

which stands for Made In North America

Get the Milwaukee MA871 Digital Brix Refractometer and the purpose-built Milwaukee MA800 Hard Carrying Case together in one complete bundle — everything you need to measure

Our advanced probe technology ensures that you get ultra-fast pH measurements direct from the root zone or in solutions

Plug Type: US-style (Type A)

Bluelab Conductivity Pen – Waterproof EC, TDS & Temperature Meter | ATC | Made in NZ MA887BOX The SM-1 is provides anBluelab Conductivity Pen Waterproof EC, TDS & Temperature Meter An accurate and reliable conductivity (EC) and temperature pen for serious growers. The Bluelab Conductivity Pen (SKU: PENCON) measures nutrient levels and temperature to help you create the optimal nutrient environment for plant growth. Maintaining the right EC prevents nutrient burn and stunted growth keeping your crops healthy and your yields high. Factory calibrated and ready to use