Low-mounting PIR motion sensor (ON/OFF version)
MSA246S IR A is a low-mounting PIR motion sensor with daylight detection function. Combined with the unique software algorithm of Merrytek, it can accurately detect human movements in almost all scenario to trigger smart scene application.
| Input/Output | Input voltage | 220-240V AC |
| Rated voltage | 230V AC | |
| Working current | 20mA max | |
| Power consumption | ≤0.5W @230V AC | |
| Output signal | ON/OFF(17A relay) | |
| Max surge voltage | 2KV(L/N,EN61000-4-5) | |
| Max surge current | 50A (50% Ipeak, twidth =500us, 230Vac full load, cold start) | |
| Max loading | 1200w resistive loading and 800w inductive loading | |
| Sensor parameter | Function | PIR motion detection+ daylight sensor |
| Detection Area | Rotation switch/MH18 remote/MH10 remote setting: 100%/75%/50%/25% |
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| Hold Time | Rotation switch/MH18 remote/MH10 remote setting: Test 2s/30s/1min/3min/5min/10min/30min |
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| Daylight Sensor | Rotation switch/MH18 remote/MH10 remote setting: 5Lux/15Lux/30Lux/50Lux/100Lux/150Lux/Disable |
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| Daylight threshold learning mode | When sensor enter daylight threshold learning mode,it’ll learn current environment’s daylight level and set it as threshold | |
| Daylight priority mode | 50lux light on,400lux light off; 100lux light on,500lux light off; 150lux light on,600lux light off; 200lux light on,700lux light off |
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| IQ mode | When sensor enter IQ mode.our sensor will auto set hold time based on sensor trigger frequency,hold time setting range is 10s-10min. 1.when current hold time is 10s and sensor triggered more than 3 times,hold time will auto set as 20s; 2.when current hold time is 20s and sensor triggered more than 6 times,hold time will auto set as 30s; 3.when current hold time is 30s and sensor triggered more than 10 times,hold time will auto set as 1min; 4.when current hold time is 1min and sensor triggered more than 20 times,hold time will auto set as 3min; 5.when current hold time is 3min and sensor triggered more than 40 times,hold time will auto set as 5min; 6.when current hold time is 5min and sensor triggered more than 80 times,hold time will auto set as 10min; when current hold time is 10min and sensor enter absence or sensor be re-powered,hold time will return to initial hold time |
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| Pulse mode | When sensor enter pulse mode.our sensor will keep on 2s and block sensing 8s when motion detected | |
| PUSH button control | available | |
| SYNC group control | When muti sensor is connected by SYNC terminal,they can be group controlled.when either sensor be triggered,all light will turn on light,and all light will turned off only when all sensor is not triggered | |
| Radius detection range based on 100% detection range | 3m height installation: tangential movement at 1m/s speed: 4-5m @25℃ radial movement at 1m/s speed: 2-3m @25℃6m height installation: tangential movement at 1m/s speed: 4-5m @25℃ radial movement at 1m/s speed: 2-4m @25℃ |
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| Remote control | available(MH18 remote/MH10 remote) | |
| Mounting heights | 2.5-6m typical value: 3m | |
| Application environment | Drill hole | Φ65mm |
| Working temperature | -25℃…+50℃(detection range might differ based on different temperature ) | |
| Storage temperature | -25℃~+50℃, humidity ≤60%(non-condensation status) | |
| Warranty | 5 year(available based on product quality under indoor application) | |
| Certificate Standard | Certificate | Compliant to CE |
| Environmental requirements | Compliant to RoHS | |
| IP rating | IP20 |
Dimension
Initialization
When powered on,sensor indicator will turn off after flashing for 35s and will not detect moving signal during this time. After 35S,you can use our rotation switch or remote to adjust detection area, hold time and daylight sensor etc parameter.
Factory setting

Wiring layout suggestion:
N/A
