Labtron Plant Nutrition Analyzer measures chlorophyll from 0.0 to 99.9 SPAD and nitrogen content from 0.0 to 99.9 mg/g for plant assessment. Its 2-second measurement interval enables rapid testing, while the HD display presents readings. Built-in GPS records locations, and 2000 data storage retains results for field review. Manufactured for field-based crop assessment, this portable plant nutrient analyzer supports agricultural research and nutrient monitoring.