Features: 1. Operating voltage range: 4.8-6.8V brand new and high quality 2. Command signal: pulse width modification 2. Operating temperature range: -25°C~70°C 2. Weight: 58g±2g 3. Amplifier type: digital controller 3. Limit angle: 360° 4. Bearing: double bearing 4. Pulse width range: 500～2500usec 5. Horn gear spline: 25T diameter: 5.9mm 5. Median: 1500usec 6. Operating angle: 180±3°(PWM 500～2500usec) or 270±3°(PWM 500～2500usec) 6. Shell: engineering plastic + aluminum alloy 7. Connecting line: 300mm±5mm 7. Dead zone width: 3 usec 8. Motor: carbon brush motor electrical 8. The direction of rotation is counterclockwise: (when 1000～2000usec) Applicable environment:1. Storage temperature range: -30°C~80°C Mechanical specifications:1. Size: 40.0x20x40.4mm Specification: Specifications: Material:Plastic+Metal Operating Voltage Range: 4.8-6.8v Limit Angle: 360° Storage Temperature Range: -30°c~80°c Operating Temperature Range: -25°c~70°c Size: Approx. 40.0x20x40.4mm/1.57x0.78x1.59inch Package Includes: 1 X Digital Servo 1 X 25T Adjustable Metal Servo Arm note: 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.