Its embedded microprocessor controller guarantees high reliability. It can automatically shut down without any load and restart while AC power is recovering. Software Monitoring included (Serial # on CD Sleeve). Strong EMI compatibility, no EMI to load.Protection against Surge, Over / Under voltage. Humidity: 20% - 90% (RH). Input - Phase: Single & GND. Input - Voltage Range: 230 / 240VAC. Input - Frequency: 44 - 55Hz ± 1Hz / 55 - 65Hz ± 1Hz. Output - Voltage Range: 230 / 240VAC. Output - Wave Form: Sine Wave (AC Mode) Square Wave (Inverter). Output - Frequency: 50 / 60Hz ± 1% (Battery Mode). Output - Crest Factor: 3:1. Protection Test Standard: IEEE 587 Cat. Protection - LAN: RJ45 Surge protection. Noise Filtering - EMI / RFI: Full time suppression. I/O Ports - UK Mains Socket: Three. I/O Ports - RJ45: Two (In / Out). I/O Ports - USB: One (For USB Monitoring). I/O Ports - IEC Socket: Three. Battery - Type: Sealed Lead-Acid, Maintenance Free. Battery - Quantity: 12V8AH x 2. Battery - Recharge Time: 90% capacity after 8 hours. Battery - Backup time: 15-20 minutes (dependent on load). What's In The Box: UPS, Mains Cable (IEC C13 to IEC C14), USB Cable (A to B), Software - UPSmart 2000I (Serial # on CD sleeve), 2 x UPS Fuse, Manual. Unit (Product) Dimensions (mm): 125mm x 230mm x 345mm (W x H x D). Packaging Dimensions (mm): 400mm x 188mm x 302mm (W x H x D). Net Weight (KGs): 12.7 KGs. Gross Weight (KGs): 13.2 KGs.