Jolly Logic makes simple, reliable flight electronics that are perfect for model and high-power rocketry. The AltimeterOne is an easy-to-use, rechargeable altimeter that shows how high your rocket flew, with a sunlight-readable screen and flight-history storage. The AltimeterTwo adds deeper rocket flight data, including altitude, speed, acceleration, timing, and flight analysis, all displayed directly on the unit without needing a computer. The Jolly Logic Chute Release gives flyers better control over recovery by holding the parachute closed after ejection and releasing it at a preset altitude, helping reduce drift on windy days or smaller launch fields. Together, these tools make it easier to track performance, improve recovery, and fly with more confidence.