Honeywell Sensing and Control Limitless Series Wireless Global Limit Switch

The Limitless™ series of switches is based on 802.15.4 point-to-point communications and can be configured to potentially allow up to sixteen devices to communicate with one receiver module. The products are based on Honeywell’s proven harsh duty and medium duty limit switches. They have the same mechanical life, temperature ratings, and sealing as standard switches, but they’re wireless. Wireless functionality is implemented through an 802.15.4 open protocol RF board operating in the 2.4 GHz globally license-free frequency band. The wireless signal is received by either a panel-mount receiver, or an industrial DIN-rail module, that then converts it to an output. Outputs can be LEDs, buzzers, or electrical signals. The capability also exists to provide CAN, ProfiBus, and standard Ethernet communications.

The Limitless™ switches eliminate the need for maintenance of equipment’s wiring. Because there is no actual wiring to install, no wear-and-tear to mend, no frayed cord to ever replace. Which interprets into a better bottom line and increased uptime.


  • Enables presence/absence detection in remote parts of application/machinery, where wiring is an issue or not feasible
  • Reduced installation/maintenance costs with no wires, conduit, strain relief, clips, connectors, connection boxes, etc.
  • Eliminates issues with wire connection integrity on moving equipment
  • Consumes ultra-low power to prolong battery life