Super strength servo ideal for applications requiring a standard size servo with high torque. Universal connector fits most RC receivers including Futaba and Hitec. Heavy duty standard size servo with that extra bit of power and speed. Includes aluminium servo arm. DS3245SG 45kg waterproof digital servo. Can be widely used for robots, mechanical arms, climbing cars, remote control boat, remote control aircraft etc. [Large Torque]: Maximum torque can up to 45kg.cm (6.8V) [High Performance]: Equipped with high precision potentiometers and high-resolution digital chip, ensure stable performance, fast response, strong anti-interference ability, low noise, fast heat dissipation. [High Quality]: Waterproof rubber seals screws, made of first-grade material ensure the longevity of the products. High-precision metal gear with hard anodizing for better accuracy and longer service life. CNC aluminium middle shell enhances heat dissipation and ensures the servo motor can work well. [High Rotation]: 180 degree rotation. Controllable angle range from 0 to 180 degrees, excellent linearity, precision control. Can be rotated within 360 degrees when power off, perfect for robot joint activities. Product Description DS3245SG RC servos are designed for remotely operating model vehicles, such as cars, airplanes and robots. It provides the functionality of a light weight standard-sized servo, HV high torque, waterproof, sensitive and responsive. It is tailored for RC hobbyist to provide different experience and delight. Specifications: Electrical Specification: Operating voltage range: 5-8.4 Volts Operating speed at no load ( 5V ): 0.18 sec/60° Operating speed at no load ( 7.4V ): 0.13 sec/60° Operating speed at no load ( 8.4V ): 0.11 sec/60° Stall torque at locked ( 5V ): 35kg.cm(486oz-in) Stall torque at locked ( 7.4V ): 46kg.cm(638.8oz-in) Stall torque at locked ( 8.4V ): 51kg.cm(708.2oz-in) Stall current at locked ( 5V ): 3.5A Stall current at locked ( 7.4V ): 5.2A Stall current at locked ( 8.4V ): 5.8A Idle current at stopped (5/7.4/8.4V): 5mA Control Specification: Control System: PWM (Pulse width modification) Pulse width range: 500-2500μsec Neutral position: 1500μsec Running degree: 270° (when 500-2500μsec) Dead band width: 2μsec Operating frequency: 50-330Hz Rotating direction: Counterclockwise (When 1500-2500μsec) Product Specification: Suitable for: for 1/8 1/10 1/12 Scale RC Cars, Trucks Motor Type:Coreless Motor Gear Type: Stainless Steel Spline:25 Tooth Gear ratio: 342 Bearing:Double Bearing Waterproof Performance:IP67 Connector Wire: 17.7in (450mm) Size: 1.57*0.79*1.59inch(40 * 20 * 38.5mm) Weight: 2.11oz (60g) CE /RoHs: Yes Packing List: 1*DS3245SG 45kg Servo 1*25T Adjustable Metal Servo Arm 1*Accessories Set (as shown in picture)