Overview: This product is used for recording the cumulative total of electronic pulse signals. It is widely used in various electric pulse counting applications in the oil, chemical, textile, machinery, mining, defense, agriculture, food, printing, and other industries. Features: Four-digit electromagnetic counter designed to record the cumulative number of electric pulse signals. High-speed counting capability with accurate measurement and low indication error. Simple and compact design, easy to carry and store. Can be integrated with secondary instruments to function as a digital display unit. Generates electromagnetic force when an electrical signal is input to the counter. Suitable for various electric pulse counting applications in petroleum, chemical, textile, machinery, mining, defense, agriculture, food, printing, and other industries. Specifications: Model: CSK4-YKW Material: Plastic Weight: 108g / 3.8oz Count Range: 0–9999 Voltage & Power: 01 AC 220V, AC 2.5VA 02 AC 110V, AC 2.5VA 03 DC 24V, DC 1.5W (Optional) Voltage Fluctuation Range: ±10% Tolerance: -15% to +10% (rated voltage) Frequency: 50–60Hz Count Speed: DC 20 times per second, AC 10 times per second Indication Error: < 1 × 0.00001 Operating Temperature: -20°C to +50°C Relative Humidity: ≤85% Installation Method: Panel mount Reset Mode: Push-button type (with lock) Package List: 1 × Electromagnetic Counter