Featuring a 3A USB (5V) output, this IP68-rated potted power supply provides protection from the elements in an outdoor setting. It is perfect for powering your Flex, Zen, or Classic Plus monitors outside. This power supply features a 17-foot reach and is available with various plug types for different countries. Important: The North American Type A and European Type C plugs with a Micro-USB connector have been discontinued as we move to USB-C being the default for our sensors. If your sensor uses Micro-USB, choose "USB-C + Micro Adaptor" under the "USB Type" option below. Sensor USB Type PurpleAir Zen USB-C + Micro Adaptor PurpleAir Flex USB-C + Micro Adaptor PurpleAir Classic USB-C + Micro Adaptor PurpleAir Classic Plus The USB Type of your sensor (selected when purchasing)