F21-4s Wireless Remote Control - Material: Abs Plastic

High cost-efficient, reliable and durable
8 operation buttons, 4 single speed Push buttons ,1 EMS "STOP", 1 start button
Program the button function by computer interface(software and cable is optional)
Glass-fiber PA for extra shock resistance.
Wide working voltage input: AC/DC 24-48V or AC/DC 100-440V (depending on clients' need), 12VDC is available
Operating distance up to 100 meters, extendable with extra antenna
High level Enclosure protection class IP 65
Transmitter with working power led indicator
Transmitter with housing for extra shock resistance and shoulder strap cord
Low cost for electronic chain, hoist/monorail
Standard AA alkaline batteries(not included)
Low power consumption transmitter, 2AA batteries last up to 4 months
With battery voltage warning device, the power supply is cut off during low power
Over 4.3 billions unique ID code available
Hamming code
Enhanced watch-dog circuit