This is the Seagull Wireless Dashboard Flight System from Eagle Tree Systems. FEATURES: Installs easily in model airplanes, helicopters, boats and cars and provides real time data at modeler"s fingertips Provides up to 20 channels of data about model displayed on scrollable pages of LCD data dashboard Partial list of what can be displayed includes; Servo Movements-displays positions of up to 4 servos Receiver Battery Voltage Speed Altitude/Climb Rate RPM Temperature Software switchable sample rates (1-10 samples/second) for high resolution or longer battery life Self-contained telemetry receiver attaches to radio or can be monitored by pit crew-no laptops needed Transmitter is powered by receiver battery-no extra battery needed Built-in variometer support for audible and visual climb rate monitoring of airplane 65,536 unique IDs (programmable) means interference problems are extremely unlikely System receiver is a USB peripheral that can be plugged into a laptop to get full screen live display and recording on laptop screen Alarms can be set for low battery, high temp, stall speed, high RPM and much more Operates at 900MHz spread spectrum, see COMMENTS below One year limited warranty INCLUDES: Real Time Data Dashboard Wireless Telemetry Transmitter Flight Data Recorder Four Wire Cables 3" (91cm) Pitot Tube Hose Plastic Pitot Tube Extension Temperature Sensor RPM Sensor Four Magnets Custom USB Cable CD-ROM Battery Backup Harness (use optional) Instruction Manual REQUIRES: Installing on model and connecting all cables SPECS: Transmitter; Frequency Range: 902-908MHz FCC Approval: 15.247 Frequency Hopping Spread Spectrum Maximum Output Power: Approx. 200 mWatt Dimensions: 2-3/4" x 1-1/4" x 1/4" (70mm x 32mm x 6mm) approx. Weight: 0.5oz (14g) approx, transmitter only Temperature Range: 0-140° F TX Antenna: Thin flexible stainless whip Power: taken from Recorder/Receiver battery Current Draw: Transmitter + Recorder, average <50 milliamp Receiver; Sensitivity: <-110dBm nom. RX Antenna: Thin flexible stainless whip Temperature Range: 0-140° F Battery: Standard 9V Display: 16x2 character LCD Pushbuttons: 4 Contrast Adjustment: Potentiometer behind battery door USB Connection: Yes Flight Data Recorder; Airspeed: Around 9mph (14.4kph) minimum, approx. 290mph (467kph) max Altitude: 0-32,000" (9754m) in approx 8" (2.4m) increments Operational Voltage: 4.35V-7.0V Current Draw: <35mA @4.8V Weight: Recorder, 4 Y cables, RPM & Temp Sensors & Pitot Tube 1.5oz (42.5g) approx. Temperature: Dual Inputs, 0° F-424° F RPM Range: 100 RPM-40,000+RPM (approx) Units Supported: English & Metric COMMENTS: Currently approved for United States use only. Available Accessories; Electric Expander: ETRP9001 Exhaust Gas Temp Expander Extra Pitot Tube: ETRP2000 Extra Temperature Sensor: ETRP7000 jxs 10/20/04 ir/jxs