
SA-02N
Supervised Wireless Magnetic Contact Sensor
Installation Manual
1
1. General Description
The SA-02N Supervised Wireless Magnetic Contact Sensor is a highperformance intrusion sensor, developed with the highest level of
technology to make it ideal for residential and commercial applications.
1.1 Standard Features
Supervisor
Case and Back Tamper Detectors
ASIC and Microprocessor Technology
Up to 3-year battery life with SPS
Ultra-low current consumption
Readily replaceable 3.6 V – 1/2 AA Lithium battery
SMD component technology
LED Test Function
Figure 1: SA-02N
2. Technical Specifications
2.1 Electrical Characteristics
Battery
CR123A 3V 1400 mAh (low battery signal when V =
2.5 V)
Current
Standby – 3 to 8 uA; Transmit – 5 mA
Pulse Count
Fixed at single pulse
Detect Range
Sensitivity of up to 2 cm from magnet
Alarm Transmit
One second
Indication
LED EN/DIS
2.2 Physical Characteristics
Dimensions (H x W x D):
87 x 35 x 25 mm (3.5 x 13.8 x 1 in.)
Weight
37 g (1.30 oz) without battery
Standards
FCC, CE, EN 50131-2-6, EN 50131-6, EN 50130-5,
EN 50130-4, Security Grade 2, Environmental Class
II
2.3 Environmental Characteristics
Operating Temperature
Range
-20°C to 50°C (-4°F to 122°F)
Operating Humidity
Range
Up to 95% (non-condensing) (max.)
RF Frequency
Available in 433.92 MHz or 868.35 MHz, with 1 m
Watt
Installation
Indoor
Magnet
Standard magnet with plastic housing and wall
spacer, adjustable height
Tamper Switch 1
Detects removal of Magnetic Contact Sensor Front
Cover (protected by case tamper switch)
Tamper Switch 2
Detects removal of Magnetic Contact Sensor from
the wall or from corner mount (protected by rear
tamper switch)
Supervisor
The supervisory signal is routinely transmitted to the
panels every 20 minutes, advising the Tamper
Status, Battery Status, and Event Activation Status to
the panel
3. Installation Recommendations
The SA-02N Magnetic Contact Sensor detects the opening and closing
of doors and windows, and transmits this information to the receiver
panel.
AVOID placing the Magnetic Contact Sensor near strong magnetic
or electrical fields other than the magnet with which it is intended
to be used; otherwise, performance may be affected and false
alarms may occur.
AVOID mounting on or near large metal surfaces and multiple
concrete/steel walls, as this may interfere or block the wireless
signals. Make sure to test the range from any location by using the
RF Test Procedure to ensure reception.
Install the magnetic contact sensor on windows or doors that
have firm hinges and firm locking action to prevent false
alarms associated with wind or bumping.
4. Installation Instructions
4.1 Selecting the Location
The location and mounting of the SA-02N affects both the
transmission range and the wear and tear of the transmitter. Preferably
the transmitter should be installed as close as possible to the receiver,
and mounted in a high location so that the transmission has less
interference.
1. Select a door or window within a room or hallway that best
matches the criteria in Section 3 (see Figure 2).
2. Make sure that the Magnetic Contact Sensor is mounted on a
sturdy, non-vibrating door or window frame.
Following this instruction reduces bumping and vibration
effects on the sensor and extends the life of the product.
3. Perform the RF Test from the proposed mounting location to
ensure that the sensor can be received.
4. Select the appropriate height for the magnet assembly that suits
the location of the sensor.
Figure 2: Selecting a Location

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4.2 Selecting the Magnet Height
The SA-02N comes equipped with a standard magnet of adjustable
height, suitable for most applications (Figure 3).
Figure 3: Magnet
When there is a mismatch in height between the door and the frame,
simply press on the sides of the mechanism on the magnet to adjust
the height of the magnet assembly to suit the location of the sensor.
4.3 Installing the Battery
Use only a 3.6 V Lithium battery (see battery specifications in Section
2.1).
1. Unscrew the case locking screw and remove the front cover. You
can now see the front of the PCB (Figure 4).
Figure 4: PCB Layout
Do not touch the magnetic element or the electronic
components inside, as doing so may cause damage.
2. For a new unit, simply remove the plastic strip contact breaker. For
replacement, remove the battery using a small screwdriver.
3. Install the new batteries in the correct alignment. The polarity of
each battery (+) and (-) must coincide with the markings (+) and (-)
on the plastic.
Dispose of the old battery properly. Do not recharge,
disassemble, heat, or incinerate.
4. To test, depress both the back tamper and the case tamper
buttons, or use a magnet to simulate a door opening and closing.
The LED lights up to indicate RF transmission.
5. Close the front cover and replace the locking screw.
4.4 Activating the Back Tamper
Each SA-02N Magnetic Contact Sensor is equipped with both a back
and case tamper detector. The case tamper detector is always active;
however, the wall (back) tamper detector (normally inactive) can be
optionally activated for additional protection against the theft or
removal of the sensor from the mounting location.
The back tamper can be activated to work in unison with the case
tamper by cutting the JP1 jumper, which is on the top side of the PCB.
1. Remove the case locking screw and front cover.
2. Cut the JP1 jumper to activate the back tamper switch (Figure 4).
3. Replace the front cover and locking screw.
4.5 Wiring the External Sensor
When an additional set of contacts is needed for the SA-02N, it is
possible to tie them together with those of the SA-02N to save having
an extra transmitter. In addition, the external magnetic sensor must be
connected in series with the internal SA-02N magnetic sensor so they
both occupy the same zone.
The maximum distance between the external contact and the
SA-02N is about 8.5 meters or 25 feet.
To wire the external sensor:
1. Remove the case locking screw and front cover.
2. Remove the jumper located below the terminal block pins (Figure
4).
3. Connect the external magnet(s) in series to the wired input
terminal block of the magnetic contact sensor.
4. Replace the front cover and locking screw.
4.6 Mounting the Magnetic Contact Sensor
The SA-02N Magnetic Contact Sensor is designed to be mounted onto
a flat wooden or stucco surface.
When mounting the SA- 02N to the surface, it is important to
see that the surface is flush with the back tamper device.
1. Remove the PCB from the back case.
2. Remove the knockouts from the back case labeled B, by using a
sharp tool or using a nail (Figure 5).
Figure 5: Mounting the SA-02N
3. Affix the two screws onto the wall, so that the back tamper arm is
pressed in.
4. Replace the PCB and tighten the PCB locking screw.
5. Replace the top cover of the magnetic contact sensor.
If the back tam per has been activated in previous steps, check
the security panel to ensure that there is no tamper signal, and
that the sensor is properly installed.
4.7 Performing Radio Transmission Test
This test is used to check the range and reception of the sensor to the
control panel receiver. If reception is poor, try to change the location of
the Magnetic Contact Sensor.
To perform a radio transmission test:
1. Ensure that all the settings of the Magnetic Contact Sensor are
adjusted as necessary for the location and that the Magnetic
Contact Sensor case is closed, with the locking screw firmly
secured.
2. Hold the sensor as close as possible to the mounting location, and
transmit using the magnet.
3. During this mode, each time the LED flashes, the sensor transmits
to the panel. If the panel is armed, an alarm is activated. If the
panel is in Test mode, the signal strength can be measured.
4. It is recommended to try several locations until the best reception
is attained.
JP1
Jumper
Antenna
LED
Terminal
Blocks (J2)
Jumper for
External Sensor
Battery
Holder
JP5 Jumper