The SMT 1500RM2U is a pure sine wave Smart UPS with a voltage output that is cleaner than any voltage you will get from your utility company, we have checked this with our oscilloscopes at work and believe me the voltage output is perfectly clean and the UPS will keep a rock steady output to all devices connected to it with protection from spikes and dips happening even in a fraction of a microsecond

It simulates utility power to the network to give a pure sine wave output.

It has pure sine wave output on the battery, energy saving green features, temperature compensated battery charging that is supposed to extend battery life, and it runs cool and quiet