The Compact Reactor™ 40 Hydraulic Autopilot with Shadow Drive™ by Garmin is an entry-level autopilot that features Shadow Drive™ technology for added security.
Unit dimensions, WxHxD: 4.3 " x 4.4 " x 1.9 " (10.9 x 11.2 x 4.8 cm)
Pump dimensions, LxWxH: 6.6 " x 3.9 " x 3.3 " (16.8 x 10.0 x 8.5 cm)
NMEA output: NMEA 2000
Supply voltage: 10V to 20V
Operating temperature: -15° C to 70 C° (5° F to 158° F)
