1With 8 operation buttons, including 7 single-speed buttons and 1 total stop 2Up to 9 control points 3With battery voltage warning device, it can cut off the circuit when the voltage is insufficient. 4Safe button switch to prevent unauthorized use. 5Internal functions can be set by the computer interfaceFeatures:With 8 operation buttons, including 7 single-speed buttons and 1 total stop Up to 9 control points With battery voltage warning device, it can cut off the circuit when the voltage is insufficient. Safe button switch to prevent unauthorized use. Internal functions can be set by the computer interface Upper/lower, east/west, south/north can be set as whether they inhibit each other. Standby 1 button can be set to boot, speed up, stamp, normal and other functions. It is suitable for industrial control of single hook single speed/two mechanism inching hoist and less than 6 contactsSpecification:Control distance: up to 100 metersSecurity code: more than 4.3 billion, factory never repeatTemperature: - 35to + 80(regardless of the cell temperature resistant)Protection level: IP65Transmitter power supply: dc 3V (2 *AA batteries )(NOT Included)Parameters of remote control:Case: glass fiber reinforced nylonProtection level: IP65Transmission power: Transmitter power supply: 2 AA batteriesSecurity code: 32 bits (4.3 billion sets)Control distance: 100 metersReceiver parameters:Case: glass fiber reinforced nylonProtection level: IP65Transmission power: 110dBmSecurity code: 32 bits (4.3 billion sets)Contact capacity: 8A hermetic relay inputReceiver power supply: AC220VWeight: Approx.1682g/59.3ozPackage list:2 x transmitters (batteries NOT Included)1 x receiver with a cable of 1m1 x Qualification certificate, specification and wiring diagram2 x Dust cover