The Estes Pro Series II™ Launch Controller (2240) is a high‑output controller designed for advanced model rocketry. Built for robust ignition and clean launches, it’s well suited for higher‑power applications and can be used with composite E through G motors when paired with an appropriate power source.

For Advanced Launches and Higher‑Power Motors

This controller provides stronger output than standard low‑power launch systems and is a good choice for flyers moving into more demanding flights, including composite E–G motors and cluster configurations. For most typical Estes A–D black powder rockets, many users will be better served by a simpler, standard Estes launch controller.

Best Results with the Pro Series II™ Li‑Po Battery (Estes 2217)

For the most reliable ignition—especially when using composite motors or flying clusters—we highly recommend adding the Estes Pro Series II™ Li‑Po Power Battery & Charger (SKU 2217). This 800 mAh 11.1 V 50C Li‑Po pack is designed to work with the Pro Series II™ Launch Controller and delivers the fast, high‑current output needed for:

• Composite E–G motor flights
• Cluster launches (including rockets like the Estes Timewarp™)
• Multiple launches in a single session with quick recharging

Using the 2217 Li‑Po system instead of disposable C‑cells gives you stronger, more consistent ignition performance and a more capable launch setup overall.

Power Options and Safety Features

The Pro Series II™ Launch Controller can be powered either by six C‑size alkaline batteries (not included) or by the Estes 2217 Li‑Po battery system (sold separately). A two‑button arming and launch sequence and an audible continuity buzzer provide clear, simple safety checks so you know when your rocket is properly connected and ready to fly.

30 ft Cable: Works for G, Longer Cables Recommended for More Distance

The controller includes 30 ft (9.1 m) of heavy‑duty cable with four rugged alligator clips, giving you a solid, reliable connection at a reasonable standoff distance. For most mid‑power E–G launches, 30 ft works fine. However, if you prefer more separation from the pad—especially for frequent G‑motor flights or larger launch sites—we recommend stepping up to a controller system with longer leads.

Durable, Ready‑to‑Use Design

Supplied fully assembled, the Pro Series II™ Launch Controller is ready to go on launch day. Connect your power source, hook up your igniters, step back to the pad distance, and you’re set for clean, powerful lift‑offs with higher‑power and cluster rockets.