Brand: Computech Systems Manufacturer's Part Number: 1000 Part Type: Racing Weather Stations Product Line: Computech RaceAir Pro Weather Stations Summit Racing Part Number: CPK-1000 UPC: 601808010002 Live Weather Data Monitoring: Yes LCD Readout: Yes LCD Displays: Monochrome Backlit: Yes Reads Temperature: Yes Reads Barometric Pressure: Yes Reads Relative Humidity: Yes Reads Dew Point: Yes Reads Density Altitude: Yes Reads Oxygen Altitude: No Oxygen Sensor Included: No Measures Wind Speed: No Wind Direction: No Reads Air Density Ratio: Yes Reads Vapor Pressure: Yes Displays ET Predictions: Yes Low Battery Indicator: Yes Predicts Quarter-Mile ETs: Yes Predicts 1/8 Mile ETs: Yes Calculates Sea Level ETs: Yes Displays Throttle Stop Predictions: Yes Calculates Throttle Stop Ratio: Yes Horsepower Correction Feature: Yes Utilizes Run Completion: Yes Data Transmits to Pager: No Includes Pager: No Power Supply: AA battery Batteries Included: No Quantity: Sold individually. Notes: May be powered with a 12v DC adapter. Adapter is not included. Computech RaceAir Pro Weather Stations Computech RaceAir Pro weather stations are competition weather analyzers and computers that will help you perfect your setup for the variable conditions around you. These top-of-the-line all-in-one electronic drag racing weather stations utilize highly precise digital sensors to detect even the smallest changes in atmospheric conditions that will impact your tuning and ET prediction decisions. They feature internal fan and automatic air sampling to provide highly accurate and repeatable results. RaceAir Pro features multi-line LCD displays that provide weather data and calculated values. Also extensive programs for drag racing， circle track， road racing， tractor pulling， and karting--all of which are accessed through the user-friendly keypad--no computer is necessary. One thing that will directly impact your racing performance， but you have no control over is the weather--especially when your day racing turns into night racing. Computech RaceAir Pro Weather Stations allow you to account and adjust for these changes to maintain racing consistency and success.Calculations and formulas:* Dial-in programs - Single run ET prediction - Database ET prediction* Throttle stop program* Multiple car prediction* Run completer* Test and tune - Holley - Precision jets - Fuel injection - Blower overdrive - Mikuni jets - Keihin jets - High speed - Square area* Drag racing performance - Full run standardizing - Intermediate run - Estimated 1/8 and 1/4 mile hp - Estimated ET and mph* Drag racing formulas - Gear ratio - Trap rpm - Converter slippage* Engine builder formulas - Calculate ratio - Calculate and pour chamber - Calculate and pour dome* Circle Track formulas - Gearing and tires - Engine rpm vs tire/gear change - Gear ratio - Tire size - MPH calculator - Tire stagger* Chassis setup by weight and percent* Fuel mileage* Liquid weights