Check the listing for details. Hoist Crane Wireless Industrial Remote Control Transmitter & Receiver F21-E1B. Condition: New. Listed at 91.90 USD. Package Included : 1 Transmitter + 1 Receiver or 2 Transmitter + 1 Receiver(According to your choice） 1 X Dust Bag Application : Bridge Crane / Overhead crane / Chain Hoist / Monorails / Concrete Pump Truck / Mobile Lifting / Tower Crane Specifications : Transmitter Number of function buttons 6 x one-step buttons (Up/ Down, East/ West, South/ North) Other buttons 1 x Stop button, 1 x Start button Material Glass-Fiber PA Dimension 164*75*46mm (in.) Weight 315G (without batteries) Protection Class IP65 Frequency range VHF: 310~331MHz; UHF: 425~446MHz Transmitter power Less than or equal to 10dBm Safety code 32bits (4.3 billion) Temperature range -40~85 degrees Celsius (-40~185 degrees Fahrenheit) Control distance Approx100m (200 meters is customized) Receiver Receiver power supply AC/DC12V, AC/DC 18~65V , AC/DC 65~440V Material Glass-Fiber PA Dimension 205*86*80mm (8.1*3.4*3.1 in.) Weight 620G Protection Class IP65 Temperature range -40~85 degrees Celsius (-40~185 degrees Fahrenheit) Frequency range VHF: 310~331MHz; UHF: 425~446MHz Receiver sensitivity -110dBm Cable length 1.65 meters Safety code 32 bits (4.3 billion) Control distance Approx100m (200 meters is customized) Features: Remote Control Parameter:F21-TX/F21-RX Material:Glass-Fiber PA Protection level:IP65 Frequency range optional:VHF:310-331 MHZ Tranmitter power :