Estes 2220 Electron Beam Launch Controller – Model Rocket Controller for Mini, A-C & D Engines with Safety Key and 17 ft Cable USB Plug-and-Play - Works with

USB Plug-and-Play - Works with any USB port including those found on PCs

Measuring System: Linear Capacitive

•USB host and device connectivity

Solid steel frame with black gloss finish is at home in harsh work environments or your kitchen counter

Estes 2220 Electron Beam Launch Controller – Model Rocket Controller for Mini, A-C & D Engines with Safety Key and 17 ft Cable USB Plug-and-Play - Works withEstes Electronic Beam Launch Controller for launching all mini, standard (A C) and D powered rockets Ignite your Estes model rockets and watch them soar (rockets sold separately) This package contains one controller, one safety key, one 17 foot launch cable, and instructions Requires four new AA alkaline batteries (not included)