DB961WP 20mm Waterproof Brushless Digital Metal Gear Large Servo from Hitec - HRC36961S
Powerful and dependable, the Hitec DB961WP is the perfect choice for those seeking top-tier performance and reliability. Featuring a wide voltage range, high resolution, and low deadband circuitry, this servo will take your hobby to the next level. This ultra-premium servo also offers waterproofing, ensuring durability in any condition.
Features:

Ultra-performance brushless motor
Dual oversized ball bearings
Water and dust resistant case
Hardened steel gear
Optimized for up to 2-cell LiPo use
IP67 waterproof rating
32-Bit MCU technology
User programmable thermal cutoff
Smart Sense technology for servo analytics
H25T industry standard output spline

Includes:

Hitec DB961WP 20mm Waterproof Brushless Digital Metal Gear Large Servo
Servo horns