EMX Orange and Black And White
WEL-200 safety edge sensor device

WEL-200: Wireless Edge Link

Eliminate the need for wiring between safety edges
and operator control boxes.

What if there was a way to make your safety edge installations easierfaster…and longer lasting with a single product?


Imagine spending less time on the job while reducing service calls, all the while also ensuring compatibility with UL325-2018 safety edge requirements?


That’s a no brainer!


It’s also why EMX Industries is thrilled to offer a FULL KIT solution including one receiver and one transmitter.


Something that comes in one package, ready to do it all


It’s called the WEL-200 wireless edge link…


Take a look below …

Auto frequency selection

The WEL-200 is the only wireless edge link that automatically chooses the cleanest frequency out of the 25 available to use. This featured increases the reliability even when installed in noisy radio frequency environments.

Multiple Transmitters

With the WEL-200, up to four transmitters (which corresponds to four separate safety edges) link to one receiver. For applications that require multiple safety edges, this eliminates the need to wire multiple safety edges and transmitters to multiple receivers, helping you save not only installation time but also on equipment costs.

Three Monitoring Methods

In compliance with UL325, the WEL-200R (receiver) features three monitoring methods:

  • NC relay contact,
  • resistive 10K monitoring,
  • and four-wire pulse monitoring.

The WEL-200 is compatible with both 8.2K and 10K monitored safety edges.

No complex wiring

Traditionally, safety edges are wired directly to a transmitter, which means that wiring is run along the length of a gate or behind a door. This is time-consuming to install, as the wiring itself must be measured, manually run between the safety edge and transmitter, bundled and secured, and tested repeatedly to ensure everything is working properly. If any changes are needed, this entire process repeats. Over time, this increases the number of service calls needed to replace, repair, or update the wiring. The WEL-200 eliminates the need for this complex wiring. Saving time on the job as well as time maintaining the safety edge system.

Long Battery Life

The WEL-200 operates using two AA Lithium-Ion batteries. Using this exact battery type (not AA alkaline), the WEL-200 should function with a minimum battery life of two years, making battery replenishment infrequent and ensuring the system is always running in your space.

200ft Line-of-Sight Operating Range

Making installation even easier, the WEL-200 can function with up to 200 feet between transmitters and receivers.

(Note that both units must have an unobstructed line of sight. For the best results, the operator housing box should be plastic to allow the radio signal to pass through.)

Made in the USA

All EMX products are proudly engineered, designed, and assembled in Cleveland OH.

Watch this short WEL-200 Kit Overview

Frequently Asked Questions

Yes, it is compatible with 8.2K and 10K edges.

No, the edge must be either an 8.2K or 10K sensing edge.

The WEL-200R receiver can be paired with up to 4 WEL-200T transmitters, and each transmitter can be connected to a separate sensing edge. (This is the long way of saying: 4 sensing edges can be connected.)

Two AA lithium batteries (2x 1.5V), which are supplied with the unit.


(We recommend Energizer Ultimate Lithium Brand AA batteries.)

The WEL-200 works with most operators that require a 10K, NC, or Pulse input for monitored entrapment protection. Be sure to confirm with the operator manufacturer that the unit is compatible with their system.

One receiver has 4 channels that can wirelessly connect to 4 transmitters. Each transmitter can be connected to a separate sensing edge.

Up to 200 ft (line of sight)

Yes, both the transmitter and receiver are housed in NEMA 4X enclosures. This allows the receiver to be mounted outside of the operator and eliminates the need for an external antenna.

Each KIT includes:

(1) WEL-200R Receiver 

(1) WEL-200T Transmitter


Additional WEL-200T Transmitters are sold separately.

Yes. The WEL-200T (transmitters) are also sold separately.

Technical Details

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