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MSA220 Z

24GHz Medium-space presence sensor(Tuya Zigbee version)

MSA220 Z is a 24GHz radar sensor based on Merrtek patented multi-array high-gain. Its antenna gain is high, and it is especially suitable for detection of human body existence information after people enter deep sleep within the range of a bed. Combining with the special algorithm of Merrytek, it can accurately detect the subtle movements brought about by vital signs after people enter deep sleep on the bed. Thus, it provides fast and accurate front-end sensing input for cardless power access of smart hotels based on the presence of human bodies.

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Features

  • The first Lifebeing detection created by Merrytek
  • Accurately output human-existing/ no-human signals
  • Accurately detect the human presence information after human enter deep sleep state
  • Support TUYA ZigBee wireless communication
  • International standard: 24Ghz ISM Band Millimeter Wave Radar
  • Presence detection diameter: 1-4m Max
  • Minor Moving detection diameter: 1-4m Max
  • Moving detection diameter: 1-4m Max
  • Presence, minor moving and moving detection range are highly coincide
  • Elliptical radiation. Effectively realize bed space detection coverage
  • Switching time of no-human state to human-existing state: less than 0.5s
  • Switching time of human-existing state to no-human state: more than 30s
  • Support surfaced mounting and flush-mounted installation
  • Set parameters by TUYA APP
  • The direction pointed by the arrow is the long side of the sensor, and the direction perpeendicular to it is the short side of the sensor
  • 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

Dimension & Function Diagram

Parameter characteristics

Input/Output Voltage Range 100-240Vac 50Hz/60Hz
Rated Voltage 220V AC
Working Current 50mA max
Working Power ≤1W 230V AC
Wireless
module
Communication Model Frequency 2.4GHz-2.484GHz ZigBee Transmitting Frequency: 10dB Receiving
Sensitivity: -101±2dBm
Transmitting Working Frequency 24GHz-24.25GHz ISM Band.
Transmitting Power 5mW Max.
Detection Area Grade1-Grade12(set by APP)
Hold Time 30s-30min(set by APP)
Daylight When the change in ambient illuminance meets the preset
illuminance difference, the sensor immediately reports the ambient
illuminance value
The change value: 10-100lux, set by APp
Illuminance 5-1200Lux
Detecting Range
(100% detection area, radius)
Movement: (at 3m height) Short side: 0.5-1m, Long side: 1.5-2m
Minor Movement: (at 3m height) Short side: 0.5-1m, Long side: 1.5-2m
Presence:(at 3m height) Short side: 0.5-1m, Long side: 1.5-2m
Mounting Height 2.5-4.0m   typical value: 3m
3dB Beam Angle 100°(XZ field)
100° (Yz field)
Environment Insert mounting hole dimensions Ф55mm
Working Temperature 0℃….+50℃
Storage Temperature -25℃~+80℃
Certificate
Standard
Certificate FCC/RED
Environmental Requirement Compliant to RoHS
IP Rating IP20
Note:”N/A” means not available.

Product details

Product Package

  • Dimension: φ65×54.5mm
  • Wiring: 2-position terminal

 

Start Process & Initialization

When the first power-on, indicator turns off after flashing for 20 seconds. Sensor does not detect moving signal during initialization. Turning ON/OFF indicator, hold time and detection area can be se by APP.

 

Factory setting

Detection Area:100%, Hold Time: 5min, 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 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

1. Our sensor is recommended layout in UPS circle to guarantee instant smart scene execution or electrical appliance operation.

Installation suggestion

Installation suggestion
Our sensor is suggested installed heading to human chest or adjust its sensing antenna toward human chest for best detection result.

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