Hanna (HI701) Free Chlorine Colorimeter - Checker® HC
Hanna HI701 Free Chlorine Colorimeter - Checker® HC
Digital pocket-sized chlorine testing that eliminates color-matching guesswork and delivers lab-accurate results in seconds
Precise chlorine measurement without the confusion
Eliminates Visual Interpretation
Digital colorimetric analysis removes the subjectivity of traditional color-matching test kits. The HI701 measures free chlorine from 0.00 to 5.00 mg/L with clear numeric results.
Pocket-Portable Design
Compact Checker HC form factor fits in your shirt pocket or tool bag. Take accurate chlorine testing anywhere—from pool decks to water treatment sites.
Single-Button Simplicity
One-button operation means anyone on your team can perform accurate testing. No complex calibration procedures or confusing menu navigation required.
Lab-Grade Accuracy
Uses DPD method chemistry for precision free chlorine measurement. Superior to test strips and traditional drop-count kits for water quality, environmental testing, and pool service work.
Testing applications
The Hanna HI701 Checker HC is designed for free chlorine testing in drinking water systems, municipal water quality monitoring, pool and spa maintenance, aquaculture operations, food service sanitation verification, and environmental field testing. Works with standard DPD reagents for chlorine analysis.
Reagent replacement schedule
HI701-25 Reagents
Each test requires one powder packet. Reagent packs sold separately in boxes of 25 tests. Store in cool, dry location away from direct sunlight.
Cuvette Cleaning
Rinse sample cuvettes with deionized or distilled water between tests. Replace cuvettes if scratched or clouded, as this affects light transmission and measurement accuracy.
Battery Replacement
HI701 operates on standard AAA batteries. Replace when low battery indicator appears on display to maintain measurement reliability.
No More Color Guessing
Digital measurements eliminate the frustration of comparing sample colors to printed charts in varying light conditions
Field-Ready Tool
Rugged construction and portable size make the HI701 ideal for technicians who test water quality across multiple locations
Consistent Results
Standardized digital readings ensure testing accuracy across different users and eliminate operator-dependent color interpretation errors
Hanna HI701 Free Chlorine Colorimeter - Checker® HC
Digital pocket-sized chlorine testing that eliminates color-matching guesswork and delivers lab-accurate results in seconds
Precise chlorine measurement without the confusion
Eliminates Visual Interpretation
Digital colorimetric analysis removes the subjectivity of traditional color-matching test kits. The HI701 measures free chlorine from 0.00 to 5.00 mg/L with clear numeric results.
Pocket-Portable Design
Compact Checker HC form factor fits in your shirt pocket or tool bag. Take accurate chlorine testing anywhere—from pool decks to water treatment sites.
Single-Button Simplicity
One-button operation means anyone on your team can perform accurate testing. No complex calibration procedures or confusing menu navigation required.
Lab-Grade Accuracy
Uses DPD method chemistry for precision free chlorine measurement. Superior to test strips and traditional drop-count kits for water quality, environmental testing, and pool service work.
Testing applications
The Hanna HI701 Checker HC is designed for free chlorine testing in drinking water systems, municipal water quality monitoring, pool and spa maintenance, aquaculture operations, food service sanitation verification, and environmental field testing. Works with standard DPD reagents for chlorine analysis.
Reagent replacement schedule
HI701-25 Reagents
Each test requires one powder packet. Reagent packs sold separately in boxes of 25 tests. Store in cool, dry location away from direct sunlight.
Cuvette Cleaning
Rinse sample cuvettes with deionized or distilled water between tests. Replace cuvettes if scratched or clouded, as this affects light transmission and measurement accuracy.
Battery Replacement
HI701 operates on standard AAA batteries. Replace when low battery indicator appears on display to maintain measurement reliability.
No More Color Guessing
Digital measurements eliminate the frustration of comparing sample colors to printed charts in varying light conditions
Field-Ready Tool
Rugged construction and portable size make the HI701 ideal for technicians who test water quality across multiple locations
Consistent Results
Standardized digital readings ensure testing accuracy across different users and eliminate operator-dependent color interpretation errors
Original: $208.22
-65%$208.22
$72.88Description
Hanna HI701 Free Chlorine Colorimeter - Checker® HC
Digital pocket-sized chlorine testing that eliminates color-matching guesswork and delivers lab-accurate results in seconds
Precise chlorine measurement without the confusion
Eliminates Visual Interpretation
Digital colorimetric analysis removes the subjectivity of traditional color-matching test kits. The HI701 measures free chlorine from 0.00 to 5.00 mg/L with clear numeric results.
Pocket-Portable Design
Compact Checker HC form factor fits in your shirt pocket or tool bag. Take accurate chlorine testing anywhere—from pool decks to water treatment sites.
Single-Button Simplicity
One-button operation means anyone on your team can perform accurate testing. No complex calibration procedures or confusing menu navigation required.
Lab-Grade Accuracy
Uses DPD method chemistry for precision free chlorine measurement. Superior to test strips and traditional drop-count kits for water quality, environmental testing, and pool service work.
Testing applications
The Hanna HI701 Checker HC is designed for free chlorine testing in drinking water systems, municipal water quality monitoring, pool and spa maintenance, aquaculture operations, food service sanitation verification, and environmental field testing. Works with standard DPD reagents for chlorine analysis.
Reagent replacement schedule
HI701-25 Reagents
Each test requires one powder packet. Reagent packs sold separately in boxes of 25 tests. Store in cool, dry location away from direct sunlight.
Cuvette Cleaning
Rinse sample cuvettes with deionized or distilled water between tests. Replace cuvettes if scratched or clouded, as this affects light transmission and measurement accuracy.
Battery Replacement
HI701 operates on standard AAA batteries. Replace when low battery indicator appears on display to maintain measurement reliability.
No More Color Guessing
Digital measurements eliminate the frustration of comparing sample colors to printed charts in varying light conditions
Field-Ready Tool
Rugged construction and portable size make the HI701 ideal for technicians who test water quality across multiple locations
Consistent Results
Standardized digital readings ensure testing accuracy across different users and eliminate operator-dependent color interpretation errors
