Product Specification Sheet APS728

Rev. 07/2013

SF525ES Maintained N/O Contact Transmitter (TC500 Series)

  • Reliable 900MHz frequency EchoStream® operation
  • Supervised signals
  • Tamper-Resistant case
  • Mounting bracket included
  • 3V Lithium battery included
SF525ES Maintained NO Universal Contact Transmitter

The Alpha Communications® / TekTone SF525ES Maintained NO Universal Contact Wireless Transmitter is for use with the Tek-CARE®500 (TC500) Wireless Emergency Call System. The SF525ES is based on EchoStream® spread spectrum technology and transmits signals at the 900 MHz frequency. The SF525ES sends supervised signals to the TekCARE®500 system at a selectable interval, making it ideal for both high security installations and residential installations. It supports a NO maintained external contact closure.

The SF525ES requires no physical wiring connections to transmit an alarm call and is powered by a 3V lithium battery. The SF525ES has a tamper-resistant case and includes a mounting bracket.


Height: 3.60" (92mm)
Width: 1.70" (44mm)
Depth: 0.96" (25mm)

Construction: Attractive, flame retardant ABS plastic
Connections: Plug-in type
Battery Life: 4-5 Years (Typical)
Housing: Plastic single-gang box
Battery: 3V Lithium (model BA505)
Required Components

  • Tek-CARE500 (TC500) Wireless Emergency Call System
Architects' And Engineers' Specifications

The Maintained NO Universal Contact Wireless Transmitter(s) shall be Alpha Communications® / TekTone SF525ES or approved equal. The SF525ES shall use the 900 MHz frequency for signal transmission. The SF525ES shall support a NO maintained external contact closure. No physical wiring connections shall be required to transmit an alarm call. The SF525ES Shall be powered by a 3V lithium battery. A mounting bracket shall also be provided.

TekTone® has designed the Tek-CARE®500 (TC500) to work as a system. Its NC501ES Master Station Computer has been carefully designed and matched to work with TC500 wireless and wired peripherals. TekTone® will not warrant or support components of TC500 that are purchased separately unless the components are add-ons to previously sold systems. TekTone® will also not warrant or support a system that is a mix of TekTone® and Non-TekTone® 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 NC501ES 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.