3000VA Sentinel Pro Online UPS with Additional Charger. Sentinel Pro is an on-line double-conversion UPS offering the highest levels of reliability and protection for critical servers, voice and data processing IT systems. Each Sentinel Pro has a built-in mimic panel with LCD to show input and output voltages, and battery charge status.
A completetly re-designed inverter which is fully microprocessor controlled has been constructed to achieve the highest levels of operating efficiency and configuration options. USB communication ports as standard, with a built-in expansion slot for additional adapters, protocol converters and related contact cards. The 'ER' model does not inlucde batteries and instead is fitted with a high-capacity battery charger for longer runtime applications.