Pyrometer Gauge Exhaust Gas Temperature Sensor for Trucks and Cars Product page: https://goo.gl/2KET6V The Pyrometer Gauge accurately displays the exhaust gas temperature, EGT. of your semi truck, tractor, RV, motorhome or car. Teltek USA gauges are best in class and backed by over 20 years of design and manufacturing. Made in the USA and secured with a Lifetime Warranty Temp range: 40°F to 1850°F Programmable high temp alert Choose between the following mounting hole sizes: Small (2 1/16"), Medium (3"), Large (fits 3 1/8" and 3 3/8") Includes gauge, thermocouple and lead wire Easy installation instructions included Lifetime warranty, excluding abuse and the sensor cables