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September 08, 2026 2 min read
Product sheet for the United Security Products WA-900 Wanderer Alert, a supervised 900MHz wireless system that detects wandering patients and calls for help.
Product sheet for the United Security Products WA-900 Wanderer Alert — a supervised 900MHz wireless system that detects patients wandering away and automatically sounds an alarm and calls for help.
The Wanderer Alert protects loved ones and at-risk patients from wandering away unnoticed. A wireless pendant transmitter, worn on the wrist or ankle with a non-removable band, sends a signal to the receiver-dialer every 3 seconds. If the receiver doesn't hear from the pendant within an adjustable period — indicating the patient has moved beyond the set range — it automatically sounds a horn/strobe alarm and/or dials emergency numbers, delivering a pre-recorded message in any language. There are no monitoring fees, and only 1 transmitter is used per WA-900 system.
Turn the Range Dial left (CCW) until the desired Safe Area or Roaming Range is satisfactory. The pendant activates the Wanderer Alert when the patient wanders from the unit, allowing the patient to move throughout the home or living area.
Turn the Range Dial right (CW) until the desired Safe Area or Roaming Range is satisfactory. This allows the patient to move throughout living areas and into the garage, yard, garden, and to the mailbox. The alert activates when the patient wanders from the unit.
When activated, the Wanderer Alert automatically detects wandering, sounds the alarm, and calls to deliver the help message to: family or neighbors, emergency services (where local regulations permit), health care providers, and cellular phones/pagers.
| Model | Description |
|---|---|
| WA-900 | Complete system: Wanderer Alert unit, horn-strobe, wireless pendant with extra wrist/ankle locking bands, AC adapter |
| PP-1 | 24-hour battery back-up pack |
| EM-900-WA | Monitors up to 40 different patients |
| LWA-900 | Patient locator |
The pendant may be worn on the wrist or ankle using the supplied band.
United Security Products. Tel: 800-227-2474 · Fax: 800-227-1592 · www.unitedsecurity.com · www.emergencycaller.com
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