Feature: The product is displayed by 6-bit LCD, and the reading is clearer. The panel can set count locking to prevent misoperation. It can input good contact signal and count accurately and reliably. The maximum counting speed can reach 200 times per second, no mechanical wear, long life, instead of electromagnetic counter. 48*24 standard panel size, easy to install. Specification: Model: H7EC-BLM Power supply: Internal power supply Type: Lithium-ion battery Model: CR2 Voltage: 3.0V Capacity: 800mA Battery life: 5 years Counting range: 0-999999 Minimum count signal: 3J-5OMS (10 seconds) 3J-2.5MS (200 times / sec) Reset method: Panel button reset, (6 digits) Operating ambient temperature: -10~60C Ambient humidity: 35~85% RH Opening size: 22.5*45MM Contact maximum resistance: 10km (count ON) Contact disconnection minimum resistance: 500km (count OFF) Package list: 1 * Counter Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.