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