Specification Sheet

Chlorine is the most common water disinfectant. The
monitoring of chlorine is crucial in applications such as
swimming pools and spas, fruit and vegetable
sanitation, disinfection and drinking water. By
monitoring this crucial parameter, serious health and
safety risks can be avoided.
The HANNA HI 711 and HI 701 CheckeHC’s bridge the
gap between simple chemical test kits and professional
instrumentati
on. Chemical test kits are not very
accurate and only give 5 to 10 points resolution while
professional instrumentation can cost hundreds of
dollars and can be time consuming to calibrate and
maintain. The HANNA HI 711 and HI 701 Checker®HCs
are accurate and affordable.
T
hese Checker®HC portable handheld colorimeters
feature a resolution of 0.01 ppm (250 points for free
chlorine, 350 for total chlorine)
and ±0.03 ppm
(
mg/L) ±3% of reading accuracy. They also use an
EPA approved DPD method.
The contoured style of these Checker®HC’s fit 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 711 and HI 701 Checker®HC’s are extremely
simple to use. First, zero the instrument with your
wa
te
r sample. Next, add the reagent. Last, place the
vial into the Checker®HC, press the button and read
the results. It’s that easy.
Easier to use and more accurate than chemical
test kits
EPA approved DPD method
±0.03 ppm ±3% of reading accuracy
0.01 ppm resolution (250 points for free chlorine,
350 for total chlorine)
Large, easy to read digits
Auto shut off
Dedicated to a single parameter
Designed to work with HANNAs powder reagents
Uses 10 mL glass cuvettes
Small size, big convenience
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:
Swimming pools and spas, fruit and vegetable
sanitation, disinfection, drinking water and quality
control checks
SHOWN ACTUAL SIZE
ACCURATE AND AFFORDABLE CHLORINE MEASUREMENT