Based on Capacitively-Coupled Contactless Conductivity Detection (C4D) technology. Designed for using NORELL? Standard Series? NMR Tubes, 5 mm OD, 1.8-2.2 mL. Designed for small conductivity change detection with high resolution. Automated monitoring growth of uniformly and non-uniformly dispersed microorganisms in simple substrates (e.g. liquid culture media) and complex substrates (e.g. blood, yogurt, minced meat, sewage, and sludge) with real-time display of growth kinetics curves. Zero consumables: The entire analysis process does not require microbial separation or purification, nor any physical, chemical, or biological additives or consumables. A simple and user-friendly operating system that completes the entire analysis process automatically, with easy operation, good versatility, low application cost, and high accuracy.