SAMLEX's EVOLUTION series inverter / charger pure sine wave inverter, adaptive battery charger, and transfer relay—all in one unit. Using state-of-the-art technology, the Samlex EVO inverter / charger operates at 165 million instructions per second with lightning fast load and response times, has nine points of physical protection monitoring (being scanned up to 10,000 times per second) to detect fault conditions and prevent product damage and uses five (5) different temperature sensors to activate two (2) speed controlled cooling fans. It doesn’t get much smarter than this. Samlex inverter / chargers are robust, reliable, and affordable for everyone. Experience the Evolution.