STI STI-1250NR Weather Stopper Flush Mount Electric Strike
Overview
The STI-1250NR is a 9VDC flush-mount electric strike designed specifically for outdoor and weather-exposed door access control installations. This unit operates on standard 9V DC alkaline battery power (included), eliminating the need for hardwired power in remote or temporary deployments. The Weather Stopper design incorporates closed-cell gaskets for environmental sealing, making it suitable for schools, hospitals, retail buildings, and public facilities where access control must withstand rain, temperature swings (-40°F to 250°F / -40°C to 121°C), and physical exposure. UL-listed to U.S. and Canadian safety standards, the STI-1250NR delivers fail-safe or fail-secure strike functionality depending on your door control logic—critical in facilities managing both legitimate entry and alarm suppression.
Compatibility
The STI-1250NR integrates with any access control system that supplies 9VDC strike output: card readers, keypads, proximity systems, and networked credential platforms. Flush-mount configuration fits standard door frame preparations for single and double-door installations. Verify your control panel or reader outputs 9VDC strike voltage before ordering. The unit works with both supervised and unsupervised access control circuits. If your infrastructure requires remote power management or integrated monitoring, confirm your panel supports battery-powered strike operation or upgrade to the remote-powered variant if available in your region.
Installation Notes
Outdoor installations require the standard Weather Stopper gasket package (included); verify door frame is properly sealed against water ingress around the strike cutout. Typical working temperature range of polycarbonate is -40°F to 250°F; confirm your installation zone does not exceed these extremes for extended periods. The 9V alkaline battery (factory-supplied) delivers reliable operation across normal seasons; plan for annual battery replacement in 24/7 high-traffic scenarios. For ADA-compliant installations covering larger pull stations, the optional STI-3100 conduit spacer accommodates surface-mounted hardware without compromising seal integrity.
What's in the Box
- 1x STI-1250NR flush-mount strike assembly
- 1x 9V DC alkaline battery (installed)
- 1x installation hardware kit (mounting screws and frame plates)
- 1x Weather Stopper gasket set
