HM Digital Hydromaster 500 - Continuous pH/TDS/EC/Temp meter books-&-videos In the absence of high

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select a sunny spot in your garden that receives at least 6 hours of direct sunlight each day

Safe for Your Veggie Garden

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It is estimated that more than 80% of homes across the country are affected by hard water

HM Digital Hydromaster 500 - Continuous pH/TDS/EC/Temp meter books-&-videos In the absence of highDescription HM 500 HydroMaster: EC TDS, pH, Temp Continuous Monitor The HM 500 is the most versatile continuous monitor indicating EC TDS, pH, and Temp providing accurate, stable readings the user can rely on. With its rechargeable battery this unit is portable or can be wall mounted.. To make is even more user friendly, it comes equipped with touch screen, high and low alarm set points, and recorded readings. It is ideal for hydroponics and other