This is the 3 Axis High G G-Force MicroSensor from Eagle Tree Systems. FEATURES: For recreational use in radio control aircraft and model rockets Standalone or eLogger V3 or V4 compatible-when used standalone acceleration is displayed on the seven segment LED display-when connected to the eLogger, acceleration for each axis for the entire flight can be displayed and graphed using the eLogger"s Windows software Measures changes in acceleration in the X, Y and G axes Precalibrated-no user calibration required One year limited warranty INCLUDES: 3 Axis High G G-Force MicroSensor with Standalone Cable and Instruction Manual SPECS: Acceleration Recording Limits: GFORCE-LOWG: to at least +/-7 g (up to 8 g) in each axis GFORCE-HIGHG: to at least +/-38 g (up to 40 g) in the X and Y axis and at least +/7 g (and up to 8 g) in the Z Axis Resolution: Approximately 0.05 G in each axis Power Input (standalone mode): 4 - 16V (4 - 6V with High G Sensor Weight: 4 grams (0.15oz) approximately Dimensions: 1.1 x 0.62 x 0.4" (28 x 16 x 10mm) COMMENTS: Not compatible with the Eagle Tree eLogger V1 or V2 or Data Recorder products. jxs 12/13/11 ir/jxs