Hanna Instruments Marine Ammonia Checker (Saltwater) (HI784)

🧪 Product Overview

The Hanna HI784 Marine Ammonia Checker is a compact digital colorimeter designed specifically to measure ammonia levels (NH₃/NH₄⁺) in saltwater aquariums with high precision. It offers quick, reliable results without the guesswork of traditional color comparison test kits.

📏 Key Specifications

• Measurement Range: 0.00 to 2.50 ppm

• Resolution: 0.01 ppm

• Accuracy: ±0.05 ppm ±5% of reading at 25°C

• Light Source: LED @ 610 nm

• Detector: Silicon photocell

• Method: Adaptation of the salicylate method – produces a blue-green color

• Power Supply: 1 AAA battery

• Auto Shut-Off: After 10 minutes of inactivity or 20 minutes total

• Dimensions: Approx. 86 × 61 × 37 mm

• Weight: Approx. 64 g

• Operating Temperature: 0–50°C; sample cuvette must be between 18–29°C

🌟 Key Features

• Simple One-Button Operation with built-in timer for accurate reaction timing

• Designed for Saltwater Use – ideal for reef tanks and marine systems

• Digital Accuracy – eliminates subjective color matching

• Compact and Portable – perfect for on-site or home use

• Highly Sensitive – detects low ammonia levels that are critical for marine life

💡 Usage Tips

• Always use clean, scratch-free cuvettes

• Avoid bubbles and fingerprints on the glass

• Let the sample and device reach room temperature before use

• Perform tests on a level, well-lit surface for best results

📦 What’s Included

• Hanna Marine Ammonia Checker HC (HI784)

• 2 sample cuvettes with caps

• 1 pipette

• Starter reagents for 10 tests

• 1 AAA battery

• Instruction manual and quick guide
  

✅ Why Choose the HI784?

• Eliminates color-guessing from ammonia testing

• Precise and reliable for detecting harmful ammonia levels

• Compact design with lab-grade accuracy

• Ideal for reefers, aquaculture facilities, and marine enthusiasts