by Hanna Instruments
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The HI 755 is a portable meter for measuring Alkalinity ideal for Saltwater Aquariums. The HANNA HI 755 Checker HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and have low resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 755 Checker HC is accurate and affordable. The Checker HC features an accuracy of +/-5 ppm (mg/L) +/-5% of reading and uses the colorimetric method. The contoured style of this Checker HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off. The HI 755 Checker HC is extremely simple to use. After zeroing the instrument with your water sample, add the reagent to the cuvette and gently invert 5 times. Then insert the cuvette into the HI 755 Checker HC and press the button to read the results. It’s that easy. Dedicated to a single parameter. Designed to work with HANNA’s liquid reagents. Uses 10 mL glass cuvettes. Small size, big convenience. Weighing a mere 64 g (2.25 oz.), the Checker HC easily fits into. the palm of your hand or pocket. Use for quick and accurate on the spot analysis. Single button operation: zero and measure. Operated by a single AAA battery. Ideal for Saltwater Aquariums. Range: 0 to 300 ppm (mg/L). Resolution: 1 ppm (mg/L). Accuracy at 25 degree C: +/-5 ppm (mg/L) +/-5% of reading. Battery Type: (1) 1.5V AAA. Light Source: LED at 610 nm. Light Detector: silicon photocell. Environment: 0 to 50 degree C (32 to 122 degree F); RH max 95% non-condensing. Auto-off: after ten minutes of non use. Dimensions: 81.5mm x 61mm x 37.5mm (3.2" x 2.4" x 1.5"). Method: colorimetric method.
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