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Small white rectangular wireless sensor, model 3551

Safety Technology International

Safety Technology International STI-3551 Wireless Entry Alert Sensor

SKU CH-CSH8-TFHN6

Wireless entry sensor pairs with chime model 38XL85 for door monitoring

  • Pairs with chime 38XL85 for door monitoring
  • Wireless sensor 3551 simplifies installation
  • New condition ensures reliable operation
  • Designed for alarm system integration

Wireless Entry Alert Sensor

The Safety Technology International STI-3551 is a wireless sensor designed to detect entry and trigger an alert. It functions as part of a security or monitoring setup for doors, gates or other access points. The sensor is sold new and intended for use with a compatible wireless chime unit.

Compatibility limited to 38XL85 chime

This sensor operates only when paired with the Wireless Entry Alert Chime No. 38XL85, as specified by the manufacturer. No other chime models or receiver units are supported by the supplied data. Buyers needing multi-zone coverage or integration with different alarm platforms should verify compatibility before purchase.

Highlights

  • Pairs with chime 38XL85 for door monitoring
  • Wireless sensor 3551 simplifies installation
  • New condition ensures reliable operation
  • Designed for alarm system integration

Specifications

BrandSafety Technology International

Questions about this item

Which sensor version works with the 38XL85 chime?

The STI-3551 sensor is designed for use with the Wireless Entry Alert Chime No. 38XL85.

What does the 3551 model number indicate for my setup?

The 3551 identifies this specific wireless sensor that pairs with the 38XL85 chime to signal an entry alert.

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