Pitch Counters descriptions： We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. Magnetic Inductive Proximity Switch Durable Digital Electronic Counter Puncher. Features: Five-digit Big LCD, Super Low Power Consumption, Large and Clear Indication Press Counting/Pause Key (Pause) to Stop Counting, After 0-30 Sec,  LCD Indication Will Be Automatically off and in Standby State. Press the Counting/Pause Key Again to Turn on the Indication and Continue to Count Use Magnetic Induction, Easy to Install and Precise Counting Maximum Counting Speed: 20 Times Per Second Reset: Through Pressing the Reset Buttons on Board or Exterior Use the Common 5th Battery, Free from External Power Supply Anti-vibration, Efficiently Ensure the Stable and Reliable System Operation Free from Mechanical Abrasion, Safe Work, Long Lifespan Specifications: Power: 1.5V €”AA 5th Battery Reset Modes: Board/exterior Counting Range: 0---99999 Available Ambient Temperature: -5-40 °C Minimum Counting PW: 10mS Dimension: 64*38*38*mm Distance Within the Magnetic Induction: About 5-10 Mm Distance out of the Magnetic Induction: 30mm Hole Size: 61*36 Mm Total Weight: About 100g Package Includes: 1 Electronic Counter . Products number : SOMONO150896