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SKU HI977104 Kategorie

pH, Alkalinity, Free Chlorine, Total Chlorine, and Cyanuric Acid Photometer - HI97104

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The HI97104 pH, Alkalinity, Free Chlorine, Total Chlorine, and Cyanuric Acid Photometer combines accuracy and ease of use in a simple, portable design. The advanced optical system provides lab-quality accuracy while its user-friendly design is easy for any user making it the perfect photometer for your water quality testing needs. The HI97104 meter measures five important parameters commonly used in the treatment and disinfection of drinking water, waste water, and swimming pools.

  • No warm up time needed before taking a measurement.
  • Tutorial mode for easy step-by-step instructions.
  • CAL CheckTM for performance verification and calibration.

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Let your photometer guide you through setup, calibration, and testing with on-screen tutorials and animations so you always know the next step. Simply access Tutorial Mode at any stage in the setup or measurement process with the dedicated help key.

The auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.

When the battery level is below 10%, a warning symbol will blink to indicate low battery condition. When low battery power may affect your results, the meter will shut down to avoid erroneous readings caused by low battery level.

Data Logging

Missed a measurement? No need to worry because your photometer will automatically log the last 50 measurements. The results can be viewed instantly using the Log Recall Menu.

CAL Check Validation

Hanna’s exclusive CAL Check feature provides a stress-free, straightforward way to ensure your photometer is working properly. Simply insert the certified CAL Check standards and let your meter guide you through validation. If your photometer is out of specification for any reason, simply calibrate to your standard.

Advanced Optical System

A Light Emitting Diode (LED) provides more light while using less power and a narrow band interference filter results in more accurate and repeatable readings.

Built Better

Designed to withstand the knocks, drops, and spills of real life, the new IP67 body ensures top performance in any environment. Internal optics are sealed from outside dust, dirt, and water. In addition, it floats, just in case you drop your meter in water. This photometer uses an exclusive positive‑locking system to ensure that the cuvettes are placed into the holder in the same position for accurate readings every time.


Cyanuric Acid Photometer

Portable Design

Made to fit comfortably in your hand for on-the-go testing or sit on a table for benchtop use, a backlit LCD display provides at-a-glance readings from any angle, day or night. The supplied AA batteries provide life for more than 800 measurements.



Specification NameDetail
Chlorine, Free & Total Range0.00 to 5.00 mg/L (ppm)
Chlorine, Free & Total Resolution0.01 mg/L
Chlorine, Free & Total Accuracy±0.03 mg/L (ppm) ±3% of reading
Chlorine, Free & Total MethodAdaptation of US EPA method 330.5, DPD Colorimetric method
Cyanuric Acid Range0 to 80 mg/L (ppm)
Cyanuric Acid Resolution1 mg/L
Cyanuric Acid Accuracy±1 mg/L ±15% of reading
Cyanuric Acid Methodadaptation of the turbidimetric method
pH Range6.5 to 8.5 pH
pH Resolution0.1 pH
pH Accuracy±0.1 pH
pH MethodPhenol Red method
Light Sourcelight emitting diode
Light Detectorsilicon photocell
Bandpass Filter Bandwidth8 nm
Bandpass Filter Wavelength Accuracy±1.0 nm
Logging50 readings (auto logging)
Power SupplyAlkaline 1.5 V AA (3 pcs.)
Battery Life> 800 measurements (without backlight)
Auto-offAfter 15 minutes of inactivity (30 minutes before a READ measurement)
Environment0 to 50 °C (32 to 122 °F); 0 to 100% RH, non‑serviceable
Dimensions142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0″)
Weight380 g (13.4 oz.)

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