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:
Aquaculture, natural, waste, drinking waters and agriculture

Orthophosphates are found in natural and wastewaters. They are commonly added to drinking water as a corrosion inhibitor. The instantaneous analysis of orthophosphate by colorimetric determination provides rapid results using a standard analysis technique.

The HANNA HI 713 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give only a few resolution points while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 713 Checker®HC is accurate and affordable.

The HI 713 Checker®HC portable handheld colorimeter features a resolution of 0.01 ppm (250 points) and ±0.04 ppm (mg/L) ±4% of reading accuracy. The HI 713 Checker®HC uses an adaptation of Standard Method 4500-P E, Ascorbic Acid method.

The HI 713 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the Checker®HC, press the button and read the results. It’s that easy.

Order Information:
HI 713 Checker®HC is supplied with sample cuvettes with caps (2), powder reagents for phosphate (6), battery and instructions.

Range 0.00 to 2.50 ppm (mg/L)
Resolution 0.01 ppm (mg/L)
Accuracy @ 25°C ±0.04 ppm (mg/L) ±4% of reading
Light Source LED @ 525 nm
Light Detector silicon photocell
Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Battery Type (1) 1.5V AAA
Auto-off after two minutes of non-use and ten seconds after reading
Dimensions 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight 64 g (2.25 oz.)
Method adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic Acid method