MSA246S 99 V

Features

Exclusive Merrytek Lifebeing Presence Detection
FMCW modulation technology applied to detect micro movement brought by breathing
Accurate Presence/Absence detection
Daylight sensoravailable
One channel 16A relay ON/OFF output+one channel 0-10V dimming output
24Ghz ISM Band Millimeter Wave Radar technology
Max loading capacity :1200w resistive loading and 600w inductive loading
Major/Minor/Micro Motion detection diameter: 6-8m Max
Sensor parameter adjustable by knobswitch or MH10/MH18 remote
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
Flush mounting and surface mounting(extra surface mounting kit needed) installation available
5 years warranty

Dimension & Function Diagram

Parameter characteristics

Input/Output	Input voltage	220-240V AC 50/60Hz
	Rated voltage	230V AC
	Consumption	≤2W @230V AC
	Output signal	One channel 16A relay ON/OFF+one channel 0-10V dimming
	Max surge voltage	2KV(L/N,EN61000-4-5)
	Max surge capacity	30A(50% Ipeak, twidth =500uS, 230Vac full load, cold start)
	ON/OFF channel max loading	Max 1200w resistive loading and 600w inductive loading
Sensor Parameter	Sensor technology	24GHz radar sensor+daylight sensor
	Detection Area	Knob switch or remote setting: 0.5m-4m
	Hold Time	Knob switch or remote setting: 10s/30s/1min/3min/5min/10min/20min/30min
	Standby Time	Knob switch or remote setting: 0s/10s/1min/3min/5min/10min/30min/＋∞
	Standby Dim Level	10%/20%/30%/50%
	Daylight Sensor Threshold	Knob switch or remote setting: 5Lux/15Lux/30Lux/50Lux/100Lux/Disable
	Daylight harvesting	Available,dimming rang:50%-100%
	QS1+100% detection range radius	major/minor/micro movement（3m height installation）: 3.5±0.5m（based on 41m² open area test and might change due to different space）
	Remote control	Available(MH10/MH18)
	Mounting height	2.5-4.0m typical value:3m
Application Environment	Drill hole	Φ65mm
	Working Temperature	0℃…+50℃
	Storage Temperature	-25℃~+50℃, Humidity ≤60%(non-condensation)
	Warranty	5 years(（only for product quality problem）)
Certificate Standard	Certificate	CE ROHS
	Environmental Requirement	Compliant to RoHS
	IP Rating	IP20

Product details

Product dimension

Dimension:φ63(Internal diameter)x80.5mm/φ80(external diameter)x80.5mm
Connection: 6-pin terminal

Initialization

When powered on,sensor indicator will turn off after flashing for 10S and will enter a 10S detection cycle,if there’s presence detected,then sensor will report presence and enter hold time calculating,if absence detected,then sensor will report absence.During initialization,sensor will not detect moving signal and you can use our MH10/MH18 remote or rotation switch to adjust detection area、hold time and daylight sensor etc parameter.

Factory setting

Detection Area: 4m
Hold Time: 30S
Standby Time:0s
Indicator light :Open
Daylight sensor :Disable

Wiring suggestions

Wiring layout suggestion：

LN terminal stands for AC input, L’N’ stands for AC output,please wiring correctly
One sensor’s max loading capacity is 1200w resistive loading and 600w inductive loading for one single load.if you want connect more load in one loop,we recommend to add an AC contactor in our output LN terminalto avoid momentary surge overload.
0-10v terminal max current 100mA,wire length shall shorter than 10m.

Installation suggestion

N/A

NameDateDownload
MSA246S-99-V-V1.0-spec.pdf 2026-08-03 07:50:25