Item Type: Crane Remote Control Model: YU 8D Material: ABS, copper. Remote Control Battery: 2 x AA alkaline battery, delivered without battery. Application: For crane, conveyor, CNC, coal mining machinery, generator start, concrete pump, grab bucket and other machinery. Package List 1 x Crane Remote Control 1 x Receiver 2 x Dust Cover 2 x Fuse 1. After use, the main power of the crane should be turned off, and the power of the receiver should be cut off as well. 2. Press the reset emergency stop button of the transmitter, and place the transmitter in a safe place. Personnel should not press it randomly to avoid accidents. 3. The crane should have the main power relay, limit switch, and other safety facilities. 4. Stop using it in case of lightning strike or interference. 5. During installation and maintenance, the main power supply of the crane and the power supply in the receiver should be turned off to avoid electric shock. 1Smart Control: With this remote controller, you can easily control the operation of crane, largely improving your working efficiency. 2Better Design: The transmitter with LED indicator and 800MHz transmission frequency can monitor power status, also anti interference. 3Reliable Work: Ensuring stable work performance in welding fume and metal dust, waterproof and durable with oil, drop, acid and more. 4Broad Utility: Widely applicable to cranes, conveyors, coal mining equipment, concrete pumps and many other mechanical equipments. 5Simple Wiring: The receiver comes with copper cable and U shaped terminal, thus the wiring is very convenient to complete.