Product images are provided for reference and may not represent the exact model, configuration, or included components.

Overview

SKU: STI-3331
Condition: New
Availability: Usually ships in 24 hours
Warranty Manufacturer Warranty
Write a Review 28% OFF

STI STI-3331 Wireless Doorbell Extender Sensor

STI STI-3331 Wireless Doorbell Extender SensorOverviewThe STI STI-3331 is a wireless doorbell extender sensor designed to integrate with access contro…

Add to cart for sale price
$26.44
$18.99
Ships same business day
In stock

Quantity:

Adding to cart… The item has been added
Compatibility guidance available for your deployment
Certified experts for pre and post-sales support
Authorized sourcing and documentation support
Shipping and lead-time confirmation before install

Bryan

Talk to Bryan

200+ hrs training • U.S - based

Certified Expert • 877-277-7147

STI STI-3331 Wireless Doorbell Extender Sensor

$26.44
$18.99

Overview

SKU: STI-3331
Condition: New
Availability: Usually ships in 24 hours
Warranty Manufacturer Warranty
Description

STI STI-3331 Wireless Doorbell Extender Sensor

Overview

The STI STI-3331 is a wireless doorbell extender sensor designed to integrate with access control and door monitoring systems. Operating at 9VDC, it provides wired power connectivity with wireless communication capability, enabling extended coverage for doorbell and entrance monitoring applications in multi-unit or distributed access deployments.

Compatibility

This sensor integrates with door access and intercom systems requiring wireless signal extension. It supports installation in security integrator configurations where extended wireless range or multiple entry point monitoring is necessary. Installers should verify compatibility with the primary access control system's wireless protocol and power requirements before deployment.

Specifications
Product Type: Lock/Strike
Communication: Wireless
Voltage: 9VDC
Q&A
Reviews
Have Questions? Ask an Expert.

System Design, Deployment & Technical Support

Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.

Fixed scope • Fixed price

System Design Assistance

  • Get help validating product compatibility
  • Coverage requirements
  • Storage planning and deployment architecture before you buy.
Request Design Help

Deployment & Configuration Support

  • Access fixed-scope support for rollout planning
  • User setup guidance
  • Migration and system standardization across single-site or multi-site deployments
View Support Services

Guides, Tools & Calculators

  • PoE requirements
  • Storage retention
  • Camera selection and deployment methodology
Open Technical Resources