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The HI97733 makes high-range ammonia testing simple and reliable. With on-screen tutorials and intuitive animations, you’ll be guided through setup, calibration, and analysis with ease. Activate Tutorial Mode at any time using the dedicated help key for step-by-step support.
Protect battery life and data integrity with built-in safeguards. An auto-off function powers the meter down when idle. A blinking indicator warns when battery power drops below 10%. The unit will shut off entirely if battery voltage could compromise reading accuracy.
Track your testing history automatically. The HI97733 stores the last 50 measurements, which can be instantly recalled via the Log Recall Menu for trend analysis and record-keeping.
Keep your photometer in spec with CAL Check™ technology. Insert certified calibration standards and follow the onscreen prompts to verify instrument performance. If needed, simply recalibrate to restore accuracy.
Engineered for consistent, repeatable results. A high-output LED combined with a narrow band interference filter ensures accurate ammonia measurements, delivering exceptional stability with minimal power use.
Durable enough for field and lab conditions. The HI97733 is sealed against water, dirt, and dust and even floats if dropped in liquid. A locking cuvette holder guarantees that every reading is aligned precisely every time.
Designed for convenience wherever you work. Use it in your hand or on the bench. A large backlit LCD screen ensures visibility in any lighting, and three AA batteries provide power for over 800 measurements.
Your HI97733 Photometer (Meter Only) includes the essentials for getting started with high-range ammonia testing:
Upgrade to the HI97733C Kit for a complete ammonia HR testing package including certified CAL Check™ standards:
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