HM Digital HM-500 Continuous pH/EC/TDS/Temp Monitor Carbon Filter & Fan Exhaust Kits Being able to easily raise

Being able to easily raise and lower the fixtures at the desired height level provides the user with higher overall lighting efficiency

The Re-Entry Interval (REI) also known as restricted entry interval or re-entry time

Some raw materials are slower to dissolve than others

Polymer lenses safeguard eyes against UV and IR

HM Digital HM-500 Continuous pH/EC/TDS/Temp Monitor Carbon Filter & Fan Exhaust Kits Being able to easily raiseThe HM 500 is the most versatile continuous monitor indicating EC TDS, pH, and Temp providing accurate and stable readings. With its rechargeable battery this unit is portable or can be wall mounted. To make it even more user friendly, it comes equipped with a touch screen, high and low alarm set points, and recorded readings. It is ideal for hydroponics and other applications such as labs, pools, aquariums, etc. Tests pH at a range of 0 pH 14 pH,