Pms-4k/pms-8k Is phone charge device that has accurate charge characteristics. The device has been used in restaurants, colleges, IP phone bars and so on. The device\'\'s detailed features are as follows A LCD screen which can simultaneously display four talk channels\'\' bills information. Auto-check rate and parameters function. More than one charge modes, such as polar reversal signal, compelling charge, delay charge. Common phone management system. Lightning protection, preventing high-voltage and static electricity. High brightness backlight (the item is optional). Spare power supply (the item is optional). The spare power supply can guarantee that the device normally work when the local power supply is cut. With these features, pms-4k&8k can provide user-friendly functionality, can meet different customers\'\' needs, and is suit to different charge standards in different areas. Default settings Temporary account is effective; Auto-print bills after hanging up is effective Auto-lock after hanging up is invalid Welcome to go WWW.IPOLEX.COM to view all of our products.