Geekstory 4 Cell AA Battery Holder Housing with JR Connector 2P+3CH Digital Servo Tester ESC Speed Controller Checker CCPM Servo for Helicopter Car Boat Robot Servo Blue

Geekstory 4 Cell AA Battery Holder Housing with JR Connector 2P+3CH Digital Servo Tester ESC Speed Controller Checker CCPM Servo for Helicopter Car Boat Robot Servo Blue

• Servo Tester: includes 3 modes to test servo motors or ESC. Can be connected to two servos or ESC; MCU control, good stability, high accuracy. Turn the knob, steering can be detected.
• This battery holder is for 4pcs AA batteries, batteries not included, you need to prepare it by yourself. It is very easy and convenient to use.
• The red wire of the holder is to connect with "+" of "IN" of the servo tester, and black wire is to connect with "-" of "IN". The other side marked "OUT" is to connect to servo, usually red wire is to "+", black or brown wire is to "-", and the rest is to "signal".
• What you get is 1pc 4 Cell AA battery holder case with JR Connector 2P black red wire, and 1pc 3CH Digital Servo Tester. AA batteries and servos not included in this listing.
• If you have any questions, pls feel free to contact us by clicking "Geekstory" under the shopping cart and click " Ask a question".