Feature 1 This control kit is suitable for single hook and single speed/double mechanism hoist and industrial control less than six contacts 2 It has eight operation buttons, including seven single speed buttons and one master stop button 3 With battery voltage alarm function, so it can automatically cut off circuit when under-voltage 4 Designed with security key switch to prevent unauthorized user 5 Inner function can be set through computer port, and start button can be set as common function, self-latching function or acceleration function Features: This control kit is suitable for single hook and single speed/double mechanism hoist and industrial control less than six contacts. It has eight operation buttons, including seven single speed buttons and one master stop button. The control points is up to 9. With battery voltage alarm function, so it can automatically cut off circuit when under-voltage. Designed with security key switch to prevent unauthorized user. Inner function can be set through computer port, and start button can be set as common function, self-latching function or acceleration function. Up/down, north/south, east/west can be set to restrain each other or not. Specifications: Receiver Power Supply: 24V DC Remote Power Supply: 2pcs AA alkaline batteries (NOT included) Output Contact Capacity: 5A relay output (using AC 250V/10A, 5A fuse) Max. Control Distance: 100meters/109yards Security Code: >4.3billion Operating Temperature: -35 to +80(not considering battery operating temperature) IP Rating: IP65 Remote Size: 16*7.5*4.5cm/6.3*3.0*1.8in Receiver Size: 19*10*8.5cm/7.5*3.9*3.3in Cable Length: About 1 meter Weight: 1.3kg(approx.) Package Includes: 1 x Remote Control (batteries are NOT included) 1 x Receiver with Cable 2 x Fuses 1 x Dustproof Bag