... With built-in battery 2. LCD display 3. Arrange: 1~999999, 1~99999999 4. contact, electric, sensor signal ZYC03 Built-in ... Battery Digital Counter8 bits LCD screen display Ideal mini feature Reset to Zero Keep data for ... display, big and clear display4. Panel reset with lock, avoid error operate5. Input contact or ... Installation dimension: 22.5×45mm ZYC03 Built-in Battery Digital Counter