OVERVIEW This kit includes a Bosch 4.2LSU sensor for use with any AEM Wideband UEGO Controller or Gauge. The Bosch 4.2LSU sensor, which gives AEM Wideband controllers their speed and accuracy, is laboratory calibrated at the factory and never requires free air calibration when used with an AEM controller! No free air calibration required - ever.Accurate to 0.1 AFR. Will not work with the newer 30-4110 wideband UEGO AFR gauge. Most emails are answered within 24 hours, including weekends and holidays. The item "AEM Replacement Bosch 4.2LSU Sensor for Wideband O2 Air/Fuel UEGO Controller NEW" is in sale since Monday, October 27, 2014. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Air Intake & Fuel Delivery\Sensors". The seller is "sparktecmotorsports" and is located in San Leandro, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay, Russian federation.