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7507
Introduction
The 7507 is a magnetic sensor that operates by radio waves to protect areas and goods contained in them.
This sensor can be used with Gemini alarm systems of the 7500 series or above.
Installation and Operation
The magnetic sensor and the control magnet must be fastened respectively to the fixed part and the
moving part of the door or window that opens into the area to be protected (for example on the door jamb
and on the door of a room or on the window jamb and the part of the window that opens).
A magnetic contact (reed switch), controlled by the position of a permanent magnet detects any forced
opening of the door or window,
When the magnet is near the sensor (door or window closed), the reed switch is closed and the radio
transmission is disabled.
When the magnet moves away from the sensor for a distance of about 2 cm. (door or window open), the
Reed switch is opened and radio transmission is activated to the Gemini alarm system mounted on the
vehicle
Testing the Operation
After mounting the 7507 sensor, check that the LED comes on for about 2 seconds when the door or window
is opened. When the LED is on, the alarm signal is being transmitted and the sensor is operating correctly. If
the light does not come on, make sure that the distance between the reed switch and the magnet is not
greater than the distance needed to attract the reed.
NOTE: YOU SHOULD NOT POSITION THE MAGNETIC SENSOR ON METAL PARTS.
Self-learning the code
The magnetic sensor code is self-learned by the Gemini alarm system of the 7500 series or higher in the
same way as the remote controls (instead of pressing the button, simply open the door or the window).
Battery Checking and Substitution
The intensity of the LED light shows the battery condition; a bright light indicates that the batteries are
charged, if the LED light is dim or if it blinks, the batteries need to be replaced. To do this, follow these
instructions:
- Remove the cover;
- Take out the old batteries and insert fresh ones respecting the polarity;
- Replace and fasten the cover.
Note: Do not dispose of used batteries in the environment; always throw them away in special
ecological containers.
TECHNICAL CHARACTERISTICS
POWER 2 - 3V LITHIUM BATTERIES
CR 1616
STANDBY CURRENT A
RADIO TRANSMISSION
RANGE
20 METRES
TRANSMISSION FREQUENCY 433.92 MHZ
9


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