Features:Mount next to a door or other entry point to alert when someone enters or exitsProvides an audible alert (doorbell sound) when triggeredSounds for approximately 4 seconds or for as long as the sensor detects changes in visible lightCDS sensor...

Features: Extra wireless speaker for Seco-Larm Enforcer Wireless Door Entry Alert Power adapter included Easy pairing Sensor Range: Up to 22 feet (7m) Wireless Range: Up to 328 feet (100m) Wireless Speaker (for E-931CS22RFCQ only): ...

Features: Weatherproof wireless reflective sensor (Tx) Wireless speaker (Rx) Reflector Two power adapters Three mounting brackets: One each for the sensor, reflector, and speaker Type - Wireless Weatherproof Entry Alert System Sensing Range - Up to...

Features:Retro-reflective design. Perfect for monitoring an entrance or use as an entrance indicator. Will make “ding-dong" sound or siren sound when the beam is interrupted. Speaker volume can be adjusted or turned off. When in siren mode, sounding...

Features:Automatically tracks how often the E-931CS22RRCQ is triggered. Push buttons to manually add to or subtract from counter, or to reset to zero. Plugs into speaker - no wiring needed. Other applications: offices, schools, warehouse, vehicle...