Price is for 120 volt 15 amp. Can be made 120 or 240 volt, 15 or 20 amp call for pricing. Orton AF Express Stand-alone controllers are a great addition for manually operated kilns to provide accurate temperature control and monitoring. Stand-alone Models are compatible with most brands of small electric kilns and can be supplied with a variety of power cords and kiln receptacles for plug-n-play installation. AF Express Stand-alone controllers come in wall-mount enclosures which are designed to sit near the kiln on a workbench or shelf. A thermocouples which measure the kiln temperature is included with a 6ft. wire extensions. Automatic controllers offer improved performance, repeatability and accurate kiln firing result. Orton controllers are manufactured with quality components and backed by a 1 year controller warranty.