| Item  | Model | ME 500 | ME 600 | ME 800 | ME 1000 | ME 1200 | ME 1500 | 
| Capacity | Output power | 500VA/300W | 600VA/360W | 800VA/480W | 1000VA/600W | 1200VA/720W | 1500VA/900W | 
| Input | Voltage range | 165~275Vac��5V (140--280v is option ) or 70 - 140V | 
| Frequency range | 50 or 60 �� 2.5Hz | 
| Output | Voltage | 220V or 110V �� 10% | 
| Frequency | 50 or60 �� 6Hz(battery mode) | 
| Transfer time | Max:10Ms | 
| Waveform | Simulated sine wave | 
|  Battery | Type | Sealed lead acid, maintenance free | 
| DC voltage | 12VDC | 
|  Battery number | 1*12V/7AH | 1*9AH/12VDC | 2*12V/7AH | 2*12V/7AH | 2*12V/7AH | 
| Protection point oflow Voltage | 9.5VDC-12VDC | 
| Standby time | Full load >3min,half load >8min | 
| Recharge | After fully discharged, charge 8 hours to 90% capacity | 
| Protecting | Output overload | Fuse & current limited when overloaded | 
|  Battery low voltage | Automatically lock out the machine so as to protect the Battery from over discharging | 
| Short circuit | Fuse & current limited | 
| Restart | Auto restart when AC recovery. | 
| Alarm |  Battery back-up | Sounding every about 4 seconds | 
|  Battery low | Sounding every about 1 second | 
| Overload  | Shutdown at once | 
| Indicator | LED | LED indicator for line on, battery back-up, UPS cut-off | 
| Surge Protection | 320 Joules, RJ11, RJ45 | 
| Communication | RS232 | 
| Package size | L*W*H(mm) 2PCS | 590*315*240 | 385*15*235 | 400*315*335 | 480*405*290 | 480*405*290 |  | 
| Package weight | Kg, 2PCS | 9Kg | 11Kg | 13.4Kg | 19.6Kg | 19.6Kg |  |