Calibration Standard for HI 723 Checker HC ®
All Product
Range 0.0 - 8.0 ppm | DPD method | Resolution 0.1ppm
All Product
Range 0:00 to 7:00 g / L | Photometric Method | Resolution 0.01g / L
All Product
Range 0 - 300 ppm in salt water | Colorimetric Method | Resolution 1 ppm
All Product
Range 0:00 to 2:00 ppm | EPA method 340.1 | 0.01ppm resolution
All Product
Range 0:00 to 5:00 ppm | EPA Method 315 B | 0.01ppm resolution
All Product
Range 0:00 to 3:50 ppm | USEPA Method 330.5 / DPD | Resolution 0.01ppm
The HI 775 Checker®HC is a simple, accurate, and cost effective way to measure alkalinity. Designed as a more accurate alternative to chemical test kits, the HI 775 provides quick, accurate results in four easy steps.
All Product
The HI 771 Checker®HC is a simple, accurate, and cost effective way to measure ultra-high ranges of chlorine. Designed as a more accurate alternative to chemical test kits, the HI 771 provides quick, accurate results in four easy steps.
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HI727 Checker HC ® - Color of Water 
HI739 Checker HC ® - Fluoride. HR 
เครื่องวัดปริมาณแอมโมเนีย ช่วงต่ำ รุ่น HI700 
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