Microtek SEBz 850 VA sine wave UPS inverter is really a fantastic inverter.
I am using this product sine three month now and its working perfectly till now.
I am very satisfied with its power and it does not have any noise issue.
the best thing about this amazing product is that its so easy to handle.
It also protects my electrical appliances and work as a stabilizer too.
waterlevel indicator and short circuit protection is one of the best thing in this inverter.
I suggest you purchase it.
And I believe never come problem when you used it.
Great product ever.