Operating pressures and temperatures can easily be read with a simple glance. The display brightness can be set for driver comfort. The peak operating levels can be set to flash warning for safety. The low mount does not restrict vision. Peak levels are saved in memory and can be viewed after a trip. The exhaust temperatures are monitored with a Pyrometer probe inserted in the exhaust flow. The probe can be mounted before of after the turbocharger. If mounted after the turbo the temperatures will vary from 300° F to 1000° F. If mounted before the turbo temperatures of 300° F to 1200° F will be normal working levels. Select the temperatures that should not be exceeded and the numbers will flash when it is attained.