EMX-4012-2 WEL-200K Wireless Edge Link Safety Kit
This wireless edge link kit delivers a complete solution for connecting monitored safety edges to gate and door operators without hard wiring. It supports reliable communication up to two hundred feet, enhances safety compliance, and simplifies installation in residential and commercial access systems. Designed for harsh environments, the enclosure protects electronics while ensuring fast response and dependable monitored operation for modern automated gate requirements.
- Wireless safety edge connection up to two hundred feet range
- Supports monitored outputs including normally closed and resistive modes
- Connects multiple transmitters for open and close protection
- Weather resistant enclosure suitable for outdoor installations
- Long battery life with efficient low power operation
Offers a complete wireless solution for integrating safety sensing edges with gate and door operators, eliminating the need for hardwired connections.
Operates reliably up to 200 feet (61 meters) between transmitter and receiver, suitable for large gate installations.
Uses a 915 MHz operating frequency to ensure strong, interference-resistant wireless communication.
Supports up to four safety edge transmitters per receiver, each with dedicated relay and pulse outputs for open and close edge functions.
Compatible with normally closed (NC), 10K, and pulse monitored safety edge outputs, enhancing system flexibility.
Transmitter is designed to work with 8.2K and 10K monitored edges, providing broad compatibility across devices.
Equipped with NEMA 4X-rated enclosures for protection in outdoor environments, including resistance to rain and dust.
Transmitter operates on two AA lithium batteries, providing up to two years of maintenance-free use.
Receiver is powered by 12-24 VAC/VDC, suitable for a range of control system configurations.
Meets UL325-2018 compliance standards, ensuring safety and code adherence in professional installations.
Includes visual LED indicators for power, channel status, and transmission activity for straightforward diagnostics.
Features opto-isolated open collector transistor outputs for pulse signal transmission, improving signal integrity.
Selectable channel mode allows assignment of channels to specific OPEN or CLOSE functions for customized control.
Backed by a 2-year limited manufacturer warranty, offering peace of mind and reliable product support.
Manufactured in the USA, ensuring quality craftsmanship and supporting domestic production.
| MODEL NAME | EMX 4012-2 WEL-200K Wireless Edge Link Kit |
| MANUFACTURER | EMX Industries |
| MPN | EMX-4012-2 |
| SKU | EMX-4012-2 |
| SYSTEM TYPE | Wireless Safety Edge Interface System |
| APPLICATION | Gate and door operator safety edge monitoring |
| UL COMPLIANCE | UL325-2018 compliant |
| MADE IN | USA |
| WARRANTY | 2-Year Limited Manufacturer Warranty |
| OPERATING RANGE | Up to 200 ft (61 m) line of sight |
| OPERATING FREQUENCY | 915 MHz |
| SYSTEM COMPONENTS | Receiver (WEL-200R) and Transmitter (WEL-200T) |
| MAX TRANSMITTERS SUPPORTED | Up to 4 safety edge transmitters |
| EDGE COMPATIBILITY | 8.2K and 10K monitored safety edges |
| RESPONSE TIME | 100 ms |
| RECEIVER ENCLOSURE RATING | NEMA 4X |
| TRANSMITTER ENCLOSURE RATING | NEMA 4X |
| RECEIVER POWER SUPPLY | 12–24 VAC/VDC |
| TRANSMITTER POWER SUPPLY | 3–3.6 VDC (2 x AA lithium batteries) |
| BATTERY TYPE | AA Lithium (ANSI 15-LF, IEC-FR14505) |
| BATTERY LIFE | Up to 2 years at 25°C |
| RECEIVER CURRENT DRAW | 50 mA |
| POWER PROTECTION | Thermal fuse and MOV (receiver) |
| OUTPUT TYPE - OPEN | Form C relay contacts (NO, COM, NC) |
| OUTPUT TYPE - CLOSE | Form C relay contacts (NO, COM, NC) |
| PULSED OUTPUT - OPEN | Open collector transistor, opto-isolated |
| PULSED OUTPUT - CLOSE | Open collector transistor, opto-isolated |
| RESISTIVE TERMINATION | 10K ohm across NO contact (jumper selectable) |
| CHANNEL MODE SELECTION | Assignable to OPEN or CLOSE function |
| POWER INDICATOR | Red power LED |
| CHANNEL STATUS INDICATOR | Green channel LED |
| TRANSMITTER STATUS LED | Green transmit/status LED |
| OPERATING TEMPERATURE | -40°C to 60°C (-40°F to 140°F) |
| RECEIVER DIMENSIONS | 140 x 34 x 90 mm (5.5 x 1.3 x 3.5 in) |
| TRANSMITTER DIMENSIONS | 180 x 32 x 67 mm (7.0 x 1.3 x 2.6 in) |
| RECEIVER WEIGHT | 200 g (7 oz) |
| TRANSMITTER WEIGHT | 170 g (6 oz) |
| RECEIVER CONNECTIONS | 12 terminals (18–26 AWG) |
| TRANSMITTER CONNECTIONS | 2 terminals (18–26 AWG) |
| WIRING REQUIREMENT | No wiring between edge and operator control box |
| MOUNTING ENVIRONMENT | Indoor / Outdoor |
| USAGE TYPE | Commercial and residential gate systems |
| SAFETY FUNCTION | Monitored wireless safety edge communication |
| COMPATIBLE OPERATORS | Swing, slide, and door operators |
| INSTALLATION TYPE | Surface mount |
| MONITORING STANDARD | Continuous edge supervision |
| PRODUCT CATEGORY | Safety & Sensors – Wireless Safety Edges |
EMX 4012-2 WEL-200K Wireless Edge Link Kit from EMX delivers a reliable, UL325-2018 compliant solution for wirelessly connecting safety edges to gate and door operators. Designed for performance, the system offers a wireless operating range of up to 200 feet and supports up to four safety edge transmitters with independent outputs for open and close functions.
Reliable Wireless Safety Integration
The WEL-200 system eliminates the need for direct wiring between safety edges and operator control boxes. Operating at 915 MHz, it features NEMA 4X enclosures for durability in outdoor environments and includes power/fault status LEDs for real-time diagnostics. The system supports NC, 10K, and pulse monitored outputs, making it highly compatible with a variety of monitored safety edges.
- Wireless range up to 200 ft. (61 m)
- Operates on 915 MHz frequency
- Supports up to 4 safety edge transmitters
- Works with NC, 10K, and pulse monitored outputs
- Runs for 2 years on 2 AA lithium batteries
- NEMA 4X outdoor-rated enclosures
- Complies with UL325-2018 monitoring standards
- 2-Year Limited Manufacturer Warranty
Versatile Components for Flexible Installation
The receiver (WEL-200R) features selectable channel modes for OPEN/CLOSE relay or pulsed output configurations and includes 12 terminal connections. The transmitter (WEL-200T) is battery-powered for easy installation and has a 2-year battery life. Both components are rated for extreme temperatures from -40°F to 140°F, making them ideal for harsh environments.
- Receiver Dimensions: 5.5" x 1.3" x 3.5"
- Transmitter Dimensions: 7.0" x 1.3" x 2.6"
- Receiver Power: 12-24 VAC/VDC
- Transmitter Power: 2 AA lithium batteries
- Receiver Weight: 7 oz. | Transmitter Weight: 6 oz.
Installers looking for a wireless safety edge solution that is compliant, easy to install, and built for rugged outdoor applications can trust the EMX 4012-2 WEL-200K kit for dependable gate and door safety integration.
Technical Specifications
- Model: EMX-4012-2
- Operating Range: 200 ft. line of sight
- Frequency: 915 MHz
- Receiver Power: 12-24 VAC/VDC
- Transmitter Power: 3-3.6 VDC (2x AA lithium)
- Battery Life: 2 years at 25°C
- Enclosure Rating: NEMA 4X
- Temperature Range: -40°—60°C (-40°—140°F)
- Outputs: Relay & Pulse (Open/Close functions)
- Compliance: UL325-2018






