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MSA211 B
MSA211 B
MSA211 B

MSA211 B

MSA211 B

MSA211 B

MSA211 B

24GHz Large-space presence sensor（Casambi version）

MSA211 B is a 24GHz radar sensor based on Merrtek patented orthogonal half-wave bending antenna. Its antenna has high gain and wide detection range and is combined with Merrytek’s unique software algorithm. It can accurately detect minor movements brought by human in almost all indoor spaces and provide fast and accurate front-end sensing input for smart home, smart hotel, smart office and other scenes.

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Introduce Wiring Diagram Common FAQ Download

Features

  • Exclusive Merrytek Lifebeing Presence Detection
  • Accurate Presence/Absence Output
  • Daylight Sensor Available
  • Casambi APP Control Available
  • 24Ghz ISM Band Millimeter Wave Radar
  • Presence detection diameter: 5-7m Max
  • Minor Motion detection diameter: 6-8m Max
  • Motion detection diameter: 6-8m Max
  • Presence, minor motion and motion detection range are highly coincide
  • Round radiation. Effectively managing a whole space by a single sensor
  • Absence switch to Presence within 0.5S
  • Absence switch to Presence no less than 1MIN
  • Flush mounting installation available
  • Sensor parameter adjustable by Casambi APP
  • Sensing function based on millimeter wave radar technology
  • Low RF power output. No harm to human health
  • Not affected by temperature, humidity, noise, airflow, dust, light and other environments

Size and Function Diagram

Parameter characteristics

Input/Output Input voltage 100-240Vac 50Hz/60Hz
Rated voltage 220V AC
Working Current 50mA max
Working Power ≤1W 220V AC
Sensor Parameter Radar frequency 24GHz-24.25GHz  ISM band
Transmitting Power 5mW Max.
Detection Area APP adjust：10%-100%
Hold Time 1min + APP hold time
Daylight 0-1200Lux
Detecting Range
(100% detection area, radius)		 Presence/Minor motion/Motion（3m installation）:2.5-4m
Remote control Available
Mounting Height 2.5-4.0m
3db Beam Angle 100° (XZ field)
100° (YZ field)
Application Environment Drill hole Φ75mm
Working Temperature 0℃…+50℃
Storage Temperature -25℃~+80℃
Certificate Standard Certificate FCC/RED
Environmental Require ment Compliant to RoHS
IP Rating IP20
Note: “N/A” means not available.

Product details

Product dimension

  • Dimension: φ90x80mm
  • Terminal: 4pin terminal with 0.75mm²-1.5mm² wire diameter recommend

 

Product Initialization

Our sensor indicator will turns off after flashing for 20 seconds once it’s powered on.And sensor does not detect moving signal during initialization. You can turning ON/OFF indicator, hold time and detection area can be controlled by Casambi APP.

 

Factory Setting

Detection Area:100%;  Hold Time:1min;  Indicator light：open

 

Detection Signal

The product detects human moving, minor moving, and presence signals, and realizes the detection of human-existing/no-human in non-sleep state. The following is a description of the moving, minor moving and presence signals:

  • Moving signal: detect the human significant moving (walking) in the detection area.
  • Minor moving signal: detect the human slight moving in the detection area, such as leaning forward, leaning forwarder and back, swinging limbs, shaking head, typing, playing with mobile phones and so on.
  • Presence signal: detect human abdominal and thoracic expansion behaviors caused by breathing, but not detect moving signal and minor moving signal.

Wiring suggestions

Wiring suggestion：

1. If you’re going to use our sensor to trigger electricity switch-on-off,you’re suggestion to layout our sensor in an isolated UPS circuit.

Installation suggestion

N/A

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