RS485 Communication 24GHz Human Presence Detection Sensor With FMCW Detection Mode
Brand Name:Merrytek
Certification:CE
Model Number:MSA203D 485
Minimum Order Quantity:100PCS
Delivery Time:1, Sample and small order: Within 5 working days after receiving your payment. 2, Bulk order: 3-4 weeks after receiving deposit.
Payment Terms:T/T
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Location:
Shenzhen Guangdong China
Address:
101-1101, Building 17, Dianda Guyuan Industrial Park, Mashantou Community, Matan Street, Guangming District, Shenzhen
Supplier`s last login times:
within 33 hours
Product Details
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Product Details
RS485 communication 24GHz human presence detection sensor with FMCW detection mode
MSA203D 485 is a 24GHz radar sensor based on the patented large-beam orthogonal antenna of Mairui Technology. It has high antenna gain and wide sensing range. Combined with Mairui Technology's unique software algorithm and automotive-grade FMCW radar modulation method, it can accurately detect subtle movements caused by human vital signs in almost all indoor spaces, thereby providing fast and accurate front-end sensor input for current scenarios based on the presence of the human body, such as smart homes, smart hotels, and smart offices.
1. Features
1) Adopt lifebeing detection technology, which can detect movement, slight movement, and breathing signals, and realize the true presence detection.
2) Using FMCW to detect the presence of human bodies
3) Super small installation size, can be applied to smart buildings, intelligent hotels, smart offices, presence detectorss, and other related intelligent control fields.
4) 24-24.25GHz (ISM band) millimeter wave radar. no interference to 5G WIFI and no penetration of detection signals through solid walls.
2. Parameters
| Working voltage | 12-24V DC |
| Working current | @12Vdc: 53±2mA @24Vdc: 32±2mA |
| Stand-by Power | ≤1W |
| Microwave Operating frequency | 24GHz -24.25GHz, ISM Band |
| Microwave emission power | 5mw Max. |
| Antenna 3db Beam Angle | 100° |
| Detection range (radius) | 3.5±0.5m |
| Sensitivity adjustable level | 0-100% |
| Hold time | 3s-7200s |
| Daylight sensor | 0-1200lux |
| Mounting height | 2.5-4.0m |
| Installation | 1. Ceiling mounting 2. Φ45mm embedded type hole size |
| Wiring | Screw terminal block 0.75mm2-1.5mm2 |
| Working temperature | 0℃...+50℃ |
| Storage Temperatur | -25℃...+80℃ |
| Comply with | RoHS, REACH |
| Package | White box + K=K carton |
| Lifetime | 5 years warranty@Ta 230V full load |
3. Functions
Movement signals active Slight motion& Breathing signal maintain
The sensor detects human walking, slight motion(such as body movement, turning up head, and other minor movements), and breathing to realize the detection of human existence in a non-sleep state.
* Movement signal: There is big movement for sensor triggering within the detection area.
* Slight motion signal: very small movement can be collected within the detection area, for example: leaning forward, leaning back, body swinging, shaking his head, typing, playing with mobile phones, and other small range of behavioral actions.
* Breathing signal: Detected breathing signal (abdominal cavity and chest cavity dilation behavior)
4. Dimension (unit: mm)
5. Wiring
6. Structure
7. Installation Instruction
1)Flush mounting
a.Cut a hole of 45 mm on the ceiling.
b.Remove the crimping cover using a flat-head screwdriver.
c.Connect the wire to the terminal.
d.Install the wire cover and press the wire.
e. Bend the spring clamp backward to push the pre-opened hole in
the ceiling.
f. Ensure stable and reliable installation.
2) Surface mounting
a. Cut off the reserved thin wall for the thread.
b. Fix the product on the target mounting surface by a matching
screw.
c. Connect the input wire to the wiring terminal, and close the
cover tightly.
d. Remove the top cover with a flat-blade screwdriver.
e. Adjust the dip switches and the parameters, and then cover the
top cover.
f. Push the product into the ceiling seat, the buckle will fasten
the product to prevent it from falling off.
g. To separate the product from the ceiling seat, insert a
flat-blade screwdriver to the disassembly gap, lift the
screwdriver, and pry down with the tip, the product will pop out of
the ceiling seat.
h. Ensure stability and reliable after installation.
8. Detection pattern
Remark:
1) Due to the influence of electromagnetic wave transmission
characteristics, the detection range is related to the size of
person, material and thickness of covering, and the effective radar
action range will change accordingly.
2) The electromagnetic wave in the millimeter wave frequency band
has certain penetration characteristics for non-metallic materials.
It can penetrate the common glass board screen and thin partition
wall and can detect the moving object behind the shield, but it
cannot penetrate the thick load-bearing wall and metal door.
9. Initialization
When the power is turned on for the first time, the indicator light flashes for 10 seconds and then turns off. Then it enters the 20S judgment. If it is judged that there is no one in 20S, the no-one command will be sent. If it is judged that there is someone, it will enter the normal sensing state (that is, start running the delay time). During the initialization period, no external motion-sensing signal is detected. The indicator light can be turned off and on through RS485 commands or Merrytek MH10 remote control. At the same time, the delay time and detection range (sensing distance) can be set through RS485 commands or Merrytek MH10 remote control
10. Factory Settings
Detection Area:4m Hold Time:30s Indicator light: open
11. Application notice
1) The sensor should be installed by a professional electrician.
2) Put the sensor as far as possible from large areas of metal plate, glass, and other materials with high medium density to avoid triggering by mistake.
3) Avoid using objects that have been vibrating for a long time around the sensor, such as shaking fans, etc. The vibration signal will be regarded as the motion signal that triggers the sensor.
4) Do not install the sensor close to the wireless router, at least above 0.5 meters.
5) MH10 remote control can be used to set the sensitivity and indicate switch Settings, (remote control HS button indicates "on" and LS button indicates "off").
6) The microwave sensor may penetrate glass or wooden walls, and the microwave penetrating outside the wall may cause false triggering when it detects moving objects outside. To avoid false triggering, please don't install the sensor close to the glass door/window, plaster wall or wood wall. And, select the appropriate detection area during installation, for example:
A. When the product is used in a room of 2m *2m or smaller space, the detection area should be set to 25% (Application: Washroom or Reception room).
B. When used in a room of about 3m *3m, the detection area should be set to 50% (Application: Restroom, entrance, or reception room)
C. When used in a room of about 4m *4m, the detection area should be set to 75% (Application scenario: small office meeting room or library)
D. When used in a room of about 5m *5m or bigger, the detection area should be set to 100% ( Application: large office, conference room, or library)
Note: the suitable detection range of the actual application needs to be based on the actual environment. The sensitivity selection of the above application scenarios is only for reference.
7) Hold time Settings: single space: 1 min -3 min, multiplayer space: 30 s -1 min.
It is not recommended to set a delay of more than 5 minutes, to avoid interference of small motion signals in the space.
RS485 Communication 24GHz Human Presence Detection Sensor With FMCW Detection Mode
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