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QC-1 HM Digital Filter System Monitor

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QC-1 HM Digital Filter System Monitor

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If you need a simple method to test your TDS or EC levels, you've found it in the QC-1. Program the unit to your desired levels and a single button press reveals a green light or red light for your water quality. No need to decipher complicated numbers, just set it and press the button to check it periodically. When you get the red light, it's time to maintenance your system. This is the easiest way to know your RO or DI system is working properly.

  • Simple one button operation is perfect for residential RO systems
  • Installs in minutes
  • Tests for TDS or electrical conductivity
  • Genuine OEM Product


Package Qty 1
Used In Brands HM Digital
Manufacturer's Id QC-1
UPC 799705707207
Actual Size (in) 3 inches (height) x 4/5 inch (width) x 1 9/10 inches (depth)
Actual Size (cm) 7.62 x 2.286 x 4.826
Operating Temperature (°F) 32 - 176
Operating Temperature (°C) 0 - 80
Fitting Type Quick Connect
Fitting Size (inches) 1/4 inch
Power Requirements 4 x 1.5V Button Cell Batteries (included), Battery Life: 12 Months
Warranty Guarantee 1-Year Limited Warranty
Additional Information ATC: No, Accuracy: +/-3%, Max. Set Point: 50 ppm (100 S), Cable Length: 24.5-inches (including sensor), TDS/EC Range: 0-5000 ppm (10,000 S)


The HM-DIGITAL-QC-1 is comparable with the following part numbers