Product Specification Sheet APS566

Rev. 07/2013

SF525 Maintained N/O Contact Transmitter (NC500 Series)

This Specsheet is for a product which is discontinued. Please contact us for alternative products.
Architects' And Engineers' Specifications

The Maintained NO Universal Contact Wireless Transmitter(s) shall be Alpha Communications® / TekTone SF525 or approved equal. The SF525 shall use the 900 MHz frequency for signal transmission. The SF525 shall support a NO maintained external contact closure. No physical wiring connections shall be required to transmit an alarm call. The SF525 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 NC501 Master Station Computer has been carefully designed and matched to work with Tek-CARE®500 wireless and wired peripherals. TekTone® will not warrant or support components of Tek-CARE®500 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 NC501 warranty number will also be required when requesting technical support.

SF525 Maintained NO Universal Contact Transmitter

The Alpha Communications® / TekTone SF525 Maintained NO Universal Contact Wireless Transmitter is for use with the Tek-CARE®500 (TC500) Wireless Emergency Call System. The SF525 is based on Frequency Agile® spread spectrum technology and transmits signals at the 900 MHz frequency. The SF525 sends supervised signals to the Tek-CARE®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 SF525 requires no physical wiring connections to transmit an alarm call and is powered by a 3V lithium battery. The SF525 has a tamper-proof case and includes a mounting bracket.

  • Reliable 900MHz frequency operation
  • Supervised signals
  • Tamper-Proof case
  • Mounting bracket included
  • 3V Lithium battery included

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

0C-60C (32F-140F)
Attractive, flame retardant ABS plastic
Battery Life:
4-5 years
Contact Closure:
1.5 seconds minimum
3V Lithium (model # BA505)

Required Components
  • Tek-Care®500 (TC500) Wireless Emergency Call System
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.