Parameters Transmitter  Product model:F24-10D TX Shell:Glass fiber reinforced nylon Protection level:IP65 frequency range:VHF:310-331MHZ; UHF:425- 446MHz Transmitting power:less than or equal to 10dBm Transmitter power supply:2 alkaline 5 batteries safety code:32 bits (4.3 billion sets) temperature range:-40°C-+85°C Control distance:Remote control distance within 100m in open environment  Receiver Product model:F24-10D RX Shell:Glass fiber reinforced nylon Protection level:IP65 frequency range:VHF:310-331MHZ; UHF:425- 446MHz Transmitting power: -110dBm Receiver power supply:18-65V 24V 36V 220V 380V (Optional) safety code:32 bits (4.3 billion sets) temperature range:-40°C-+85°C Control distance:Remote control distance within 100m in open environment Control cable:1.3 m  Note: Equipped with battery voltage alarm device, low voltage will automatically cut off the circuit. The physical wiring diagram is attached in the packing list. Please refer to the wiring diagram for any operation that you don't understand.Code modification and replication can be accomplished by copying machine or data line. Application Bridge Crane / Overhead crane / Chain Hoist / Monorails / Concrete Pump Truck / Mobile Lifting / Tower Crane Package includes: 1.one transmitter /two transmitter 2.one receiver 3.handle protector 4. Insurance 5.wiring diagram 6.certificate 7.instruction manual