5 digit digital counter electronic magnetic induction punch OOTDTY Feature: 1. 5 digits large LCD display screen, large and clear 2. Use ordinary AA battery, no external power supply and easy battery 3. Press the pause button to pause/count, press the pause button again, and resume counting 4. The input adopts ordinary signal, simple and convenient to select the sensor, accurate and reliable counting 5. Highest counting speed: 20 times/second, 1200 times/minute 6. Clean: Panel/outdoor use Technical parameters: Power supply: 1.5V-AA battery (for safe, not included) Counting range: 0 - 99999 Highest frequency counting: 20HZ Minimum pulse width counting: 10mS Maximum contact resistance: le; 10KOmega; Minimum contact disconnect resistance: ge; 500KOmega; Clear Method: Panel/Outdoor Clear Minimum Pulse Width: 0.1 seconds Ambient Temperature: -5-40°c Dimensions: 64*38*38mm Hole Size: 61*36mm Usage: Start Counting: Input terminal input signal counting, counter starts counting. Pause counting: press the pause button to pause counting; Press the pause button again to resume counting. Clean panel: press RESET directly. External clear: clean the external pin of the terminal and clean it directly. Package Included: 1 * Electronic Meter (Batteries Not Included for Safe)