Now you can see your lap times - instantly! Includes display, receiver, harness & instructions. An infra-red transmitter mounted at trackside automatically triggers the In-Car Timer with 100% accuracy each and every lap - no 'thumb' errors. Use the Double Range transmitter where access to the edge of the track is limited. Standard transmitter works up to 60 feet. * Drivers see your lap times as they happen * Adjust your driving line to find the fastest time * Easy to install & remove * 60 lap memory with easy recall * Transmitter can be mounted inside or outside track (not included in this model) Longacre Hot Lap Standard Display System - Transmitter not included IO- HL707$198.95 OUTSIDE OF CALIFORNIA - YOU PAY NO SALES TAX. Safe & secure ordering with 128-bit SSL encryption. All prices in US dollars.