The System Sensor 2WTR-B is a 2-wire, photoelectric i3 smoke detector with thermal sensor and Form C relay.
Throughout the i3 series, installation is simple with its installer-friendly base and plug-in design.
The base accommodates a broad range of back box and direct mounting options and provides ample space for pre-wiring the device.
To complete the installation, the i3 detector plugs into its base with a simple Stop-Drop ’N Lock action.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
The Biggest Fire Alarm Shop in the World!
- 1-Year Warranty
- 30-Day Money-Back Guarantee
- Same Day Shipping
- Worldwide Shipping
- World-Class Customer Success