AP-1 HM Digital Water Test Meter

Price $29.95
Availability: In stock
  • Measures TDS and Temperature with automatic temperature compensation to give you greater accuracy
  • Ultra convenient push button calibration (no tools necessary)
  • 0-5000 ppm range for nearly every water condition
  • Magnetic body so you can stick it to the fridge and never lose it
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If you own any type of reverse osmosis or deionizing filter system, you should own a TDS meter. With an accuracy rating of +/- 2% the AP-1 is a highly accurate TDS meter that will give you the information you need quickly and easily. Designed for a wide range of applications, the AP-1 is powerful enough to be used in commercial settings while maintaining a simple design anyone can use.
Package Qty 1
Used In Brands HM Digital
Manufacturer's Id AP-1
UPC 891144000120
Actual Size (in) 5 9/10 inches (height) x 1 1/10 inches (width) x 1/2 inch (depth)
Actual Size (cm) 14.986 x 2.794 x 1.27
Operating Temperature (°F) 32 - 176
Operating Temperature (°C) 0 - 80
Power Requirements 1 x 3V Button Cell (Model CR2032 - Included)
Includes TDS Meter, Batteries, Instructions

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


User Guide


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