Adjustable magnification: The magnifier can be easily positioned, providing magnification options of 3 to 9 times for optimal viewing. Enhanced efficiency: The specialized probe pen minimizes manual effort and improves counting efficiency. Audible confirmation: Each count is confirmed with a sound alert, ensuring accurate results. Stable setup required: For accurate use, place the instrument on a level and sturdy surface, and ensure cleanliness to avoid contamination of the counting area. Versatile application: This digital colony counter is suitable for various industries including food, pharmaceuticals, cosmetics, sanitation, biological products, drinking water, and wastewater management.