Product Specification Sheet APS1029

Rev. 12/2016

WPT501 Wireless Pendant Transmitter

  • Fully supervised wireless 900MHz EchoStream® transmitter
  • Water-Resistant
  • Large alarm button with alarm activation delay
  • Low battery warning before battery depletion
  • Flashing LED indicator during alarm activation
  • Continuous alarm signal until reset button pressed
  • Field-replaceable, 3V lithium battery (model BA501)
WPT501 Wireless Pendant Transmitter

The Alpha Communications® WPT501 Single Button Call Pendant Transmitter features the great range and reliability of 900 MHz in a small, water-resistant package. Users can wear the pendant in the shower or bathtub, outside in the rain, or other environments where the pendant may be splashed with water, or momentarily submerged. A single-button design with "press and one second hold" activation makes the pendant very easy to use, yet still reduces false alarms. When the WPT501 is activated, it continues to send an alarm signal until its reset button, located on the back, is pressed.

The WPT501 is especially suited for assisted living installations. Weighing only 1.4 ounces, it includes both a neck cord and a belt clip, and can easily be converted by the end user. 

The WPT501 features a fully supervised RF link to ensure reliability. The built-in LED flashes with all transmissions, including supervision, so the user can see the transmitter is still functioning. The battery is a field-replaceable long-life 3V lithium type, and is included.


Height: 2.2" (56mm)
Width: 1.9" (49mm)
Depth: 0.72" (19mm) - less neck lanyard

Weight: 1.4 oz.
Power: Two (3) 3V Lithium batteries (included)
Battery Life: 1-2 years (typical)
Range: 1 mile, open field
Environment: 0�C-60�C (32�F-140�F)
Required Components

AlphaEcall (200 Series) or AlphaEntry (v5.5 or later)  Wireless Emergency Call Systems

Architects' And Engineers' Specifications
The wireless call neck lanyard pendant transmitter(s) shall be Alpha Communications® WPT501 or approved equal. It shall use the 900 MHz frequency for signal transmission, and shall include a transmission indicator LED. No physical wiring connections shall be required to transmit a call. When activated, the WPT501 pendant shall continue to send an alarm signal until its reset button, located on the back, is pressed. The WPT501 shall also include a neck lanyard and a 3V lithium battery. The transmitter shall be no larger than 2.2" x 1.9" x 0.72" and shall be lightweight enough to be worn comfortably, and shall be water-resistant to IP67 standard.

Alpha Communications® has designed the AlphaEcall 200 series and AlphaEntry (v5.5 or later) to work as a system. The Master Stations have been carefully designed and matched to work with these wireless and wired peripherals. Alpha Communications® will not warrant or support components for these systems that are purchased separately unless the components are add-ons to previously sold systems. Alpha Communications® will also not warrant or support a system that is a mix of Alpha Communications® and Non-Alpha Communications® parts, unless prior written permission has been obtained. In order to track our systems and to inform facilities of software upgrades, full site information (site name, address and phone number) will be required when ordering. Site information and WNC510 warranty number will also be required when requesting technical support.

Alpha Communications
42 Central Drive • Farmingdale • NY • 11735-1202 • Phone: (631) 777-5500 • Fax: (631) 777-5599
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Due to continuous product improvement, all colors, sizes, materials, finishes and specifications are subject to change without notice.