Until the HM-500 HydroMaster is again available, this is our next-best option for continuous monitoring of pH, EC, and temperature.
The HM Digital HydroMaster HM100 conveys 3 critical parameters for successful gardening. The HM100 is a versatile continuous monitor that displays pH, EC (µS/mS), TDS (.5 (NaCl) / .7 (442)) & Temperature (°F / °C) providing accurate, reliable readings the user can rely on year after year. The HM100 can be wall mounted for 24/7 monitoring.
• Continuous PH/EC/TDS/Temp monitor
• High and low alarm set points
• Large, easy-to-read LCD screen
• AC 110v-220v 50/60Hz power supply
• Easy-to-use digital calibration
• Three-year warranty (monitor), Six-month warranty (pH probe)
• Stores up to 6 measurement readings
• Replaceable sensors
