The PIR motion sensor built into the SpeechPOD detects the presence of people and activates a pre-programmed voice warning.
The dual sensor models of the SpeechPOD can issue two different voice messages depending on the direction from which they detect movement.
The steel security plate is a solid piece of steel that is used to fill the aperture of the letterbox when not in use. With the addition of a locking screw to secure the security plate, the ability to pass things through it is disabled. By locking the plate closed, unwanted items can not be pushed through the door, further reducing the risk of an arson attack.
An emergency light unit that can be wired to a switch, allowing it to be turned on or off for regular use (switching the unit between maintained and non-maintained operation). In the event of a mains power / circuit failure the lamp on the unit will be powered by its back-up battery.
When in emergency operation the light output of the emergency light will drop to approximately 10% of its normal light output. This ensures that the back-up battery will power the lamp for the required duration (3 hours). The stated light output (in Lumens) in the product description is the light output in emergency operation.