SPT5 SPT6 - Würth Elektronik Stelvio Kontek presents the new concept for roller shutter security sensor!
The classic roller shutter security sensor is based on a mechanical actuator.
This approach has a weakness in the fact that is unpredictable the steady state position of the actuator itself. There is the possibility that in some positions micro movement of the shutter causes alarm without intrusion tentative.
SPT5, SPT6 solve completely the problem passing from a mechanical approach to an electronic solution based on magnetic sensors managed by a microcontroller. The design of the product guarantees a right hysteresis in the shutter movement as a filter of micro movement.
SPT5 is a two wires product that can replace in the plant the traditional product without removing the existing cables or add other cable. It needs a master communicating by a proprietary protocol. The master furnish a contact as output to the alarm central unit.
SPT6 has been designed to drive a transmitter in a wireless plant.
It has a three terminals for supply and an open collector output. SPT6 interfaces just one transmitter and is powered by its own battery.
In steady state the consumption is about 2microA.