High-mounting PIR motion sensor (ON/OFF version)
MSA250S IR is a high-mounting PIR motion sensor with daylight detection function. It applies merrytek exclusive super high lens to achieve MAX 30m diameter detection coverage when installed 3-25m. 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 | |
| Max surge voltage | 2KV(L/N,EN61000-4-5) | |
| Max surge current | 75A (50% Ipeak, twidth =500us, 230Vac full load, cold start) | |
| Max loading | Max 2000w resistive loading and 1200w inductive loading @230Vac | |
| Sensor parameter | Function | PIR motion detection + daylight sensor |
| Detection Area | Rotation switch/MH10 remote setting: 100%/75%/50%/25% |
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| Hold Time | Rotation switch/MH10 remote setting: Test 2s/30s/1min/5min/10min/30min |
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| Daylight mode | Light control/Bright and Dark/Daylight priority | |
| Daylight Threshold | Rotation switch/MH10 remote setting: 5Lux/15Lux/30Lux/50Lux/100Lux/150Lux/Disable |
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| Radius detection range based on 100% detection range | 12-15m @25℃ based on 10m mounting height and tangential motion(radial motion trigger distance will be shorter than tangential) 3-5m @25℃ based on 3m mounting height and tangential motion(radial motion trigger distance will be shorter than tangential) |
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| Daylight Priority | 30lux turn on light, 100lux turn off light 50lux turn on light, 200lux turn off light 100lux turn on light, 300lux turn off light 150lux turn on light, 400lux turn off light |
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| Remote control | available(MH10 remote) | |
| Mounting heights | 3-25m typical value:10m | |
| Application environment | Installation | Surface mounting |
| Working temperature | -25℃…+50℃(detection range might differ based on different temperature ) | |
| Storage temperature | -25℃~+50℃, humidity ≤60%(non-condensation status) | |
| Wiring standard | Wire diameter: 0.2-2.5mm² Wire stripping length: 5-8mm |
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| Warranty | 5 year(available based on product quality under indoor application) | |
| Certificate Standard | Certificate | CE UACK |
| Environmental requirements | Compliant to RoHS | |
| IP rating | IP54 | |
| “N/A” means not available | ||
【Dimension】
【Initialization】
When powered on,sensor indicator will turn off after flashing for 20s and will not detect moving signal during this time. After 20s,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
