WEL-200 Wireless Edge Link Overview
The WEL-200 system provides a complete wireless solution for interfacing sensing edges with gate and door operators. This wireless edge link eliminates the wiring between the safety edge and operator control box while ensuring compliance with 2018 UL325 monitoring standards.
The WEL-200 operates up to 200 feet line of sight between transmitter and receiver. The receiver connects with up to four transmitters with separate relay and pulse outputs for open and close edge functionality. The transmitter for the WEL-200 is compatible with both 8.2K and 10K monitored safety edges.
NEW! The Redesigned WEL-200 Transmitter
A look at the redesigned transmitter — a new housing with an LED status window, captive screws, and a steel mounting bracket.
WEL-200 Dip-Switch Overview
How to configure the receiver dip-switches to assign each channel to OPEN or CLOSE functionality.
NEW! Redesigned WEL-200 Transmitter
The WEL-200T transmitter has been redesigned. The radio, the wiring, and the fit and function are all the same, and the WEL-200R receiver is unchanged — every update is in the housing, and each one makes installation and service easier.
- Redesigned housing: The circuit board stays enclosed for battery replacement, edge wiring, and pairing, which reduces the risk of electrostatic discharge in the field.
- LED status window: Check pairing and battery status from outside the housing, with the cover closed.
- Captive screws: One bracket screw and four case screws stay in the housing through installation and service.
- Steel mounting bracket: Mount the bracket first and wire at working height, then hook the transmitter on. The edge cable enters through the bottom or through a rear knockout.
UL 325: The improved transmitter was submitted to UL in June 2026 and is approved as an alternate construction under the existing WEL-200 UL file. OEMs who previously submitted the WEL-200 with their operator do not need to resubmit — existing approvals are grandfathered and remain compliant.
Features of Our WEL-200 Wireless Edge Link
- Long Range Operation: Operates up to 200 ft. (line of sight) between the transmitter and receiver.
- Multiple Transmitter Support: Connects with up to four transmitters, providing separate relay and pulse outputs for open and close edge functionality.
- Durable: Housed in rugged, watertight NEMA 4X enclosure.
- Universal & Compliant: UL325 Compliant and Compatible with both 8.2K and 10K monitored safety edges. Resistive edges only.
- Long Life: WEL transmitters will operate for two years on two AA lithium batteries.
NEW! Radio Signal Quality Display
The WEL-200 Receiver features a one-digit display that reports signal quality (0 to 9) for the selected transmitter, allowing for quick assessment of connection strength.
SPECS
| TECHNICAL DATA | WEL-200T | WEL-200R |
| Operating range | Up to 200 ft. (line of sight) | Up to 200 ft. (line of sight) |
| Operating frequency | 915 MHz | 915 MHz |
| Response time | 100ms | 100ms |
| Edge resistance range | 4K – 12K ohms (resistive edges only) | NA |
| Power/fault indicator | Green, yellow and red LEDs visible at the housing viewport | Red power LED/green channel LED |
| Channel status indicator | NA | Green LED |
| Signal quality display | NA | One digit, 0 to 9, for the selected transmitter |
| Channel mode selection switch | NA | Assign each channel to OPEN/CLOSE function |
| Outputs | NA |
|
| Resistive termination | NA | 10K ohm across NO contact, DIP selectable per relay group |
| Power protection | Thermal fuse | Thermal fuse, MOV |
| Environmental rating | NEMA 4X | NEMA 4X |
| Power supply | 3-3.6 VDC (2x AA batteries) (ANSI 15-LF, IEC-FR14505 (FR6)) |
12-24 VAC/VDC |
| Battery life | 2 years at 25°C | NA |
| Current draw | NA | 1 Relay – 42mA, 2 Relay – 70mA |
| Operating temperature | -40°…60°C (-40°…140°F) | -40°…60°C (-40°…140°F) |
| Dimensions (L x W x H) | 180mm (7.0”) x 32mm (1.3”) x 67mm (2.6”) |
140mm (5.5”) x 34mm (1.3”) x 90mm (3.5”) |
| Weight | 180g (6.4 oz.) | 200g (7 oz.) |
| Connections | 2 terminals (18-26AWG) | 12 terminals (18-26AWG) |
