SPECIFICATIONS F21-E1B 2 Transmitter + 1 Receiver 220V 380V 110V 12V 24V Industrial Remote Controller Switches Hoist Crane Control Lift Crane remote emergency stop button Warranty: 1 year Switch Type: Remote Control Remote Distance: at least 50 m Origin: CN(Origin) Model Number: F21-E1B Model 4: 2 transmitters + 1 receiver Model 3: 6 Channels Model 2: F21-E1B Model 1: Orange Material: Alloy Item Type: Switches Is Smart Device: No Features: 2 transmitter + 1 receiver Certification: CCC,ce Features: Low-cost, low energy consumption , two alkaline batteries can be used 4 months , Buyers bring their own batteryTemperature Range:-40C-+80 CProtection class:: IP65Material: fiberglass shell structureControl distance: up to 100 metersTransmitter Power: DC 3V (2 alkaline AA batteries can be used 4 months)Receiver Power Supply: AC 380V/220V/110V / or DC 12V/24V/36V/48Vthis items without include battery , because airlines and airplane do not allow
