Features:There are 8 operation keys, including seven single speed buttons and one total stop button.Number of control points reached 9.With battery voltage warning device, cut off the circuit when the voltage is insufficient.Safe key switch to prevent unauthorized use.Can be connected to the computer interface to set internal functions.The power button can be set to normal, self-locking and acceleration by the computer.Up/down, east/west, south/north can be set to whether or not they inhibit each other.Standby 1 button can be set to boot, speed up, stamp, normal and other functions.Suitable for single hook single speed, two mechanism jog hoist and industrial control below 6 contacts.Specification:Condition: 100% Brand NewWeight: 1410g/49.7ozControl distance: up to 100 metersSecurity code: more than 4.3 billion, factory never repeatProtection Level: IP65Operating Temperature: -35 to +80 (regardless of battery temperature)Transmitter power supply: DC 3V (2 alkaline no.5 batteries can be used for 4 months, NOT included.)Remote Control Parameters:Housing Material: Fiberglass Reinforced NylonProtection Level: IP65Transmit Power: <10dbmTransmitter Power: 2* AA Batteries (NOT included)Security Code: 32 Bits (4.3 Billion Groups)Control Distance: 100 MetersReceiver Parameters:Housing Material: Fiberglass Reinforced NylonProtection Level: IP65Transmitting Power: 110dbmSecurity Code: 32 Bits (4.3 Billion Groups)Electric Shock Capacity: 8A Fully Sealed Relay InputReceiver Power Supply: AC380VPackage List:1 * Transmitter1 * Receiver1 * 1m Connecting Cable1 * Certification1 * User Manual1 * Wiring Diagram1 * Dust Cover