Shenzhen Merrytek Technology Co., Ltd.
Shenzhen Merrytek Technology Co., Ltd Intelligent Lighting Control
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RS-485 protocol high-performance commercial occupancy sensors with max. 4m mounting height
1. Features
1) PIR motion detection
2) Exquisite appearance with planar Fresnel lens
3) Accurate RS-485 protocol output
4) Daylight sensor detection available
5) Detection area, hold time, and ID edit, etc, can be set by remote
6) Max detection range: 8-10m in diameter
7) Hallway and Toilet motion detection is highly recommended
8) Flush mounting and surface mounting available
9) Compact mini size for perfect ceiling mounting
2. Parameters
| Input/Output | Input voltage | 12-24V DC |
| Rated voltage | 12/24V DC | |
| Working current | 20mA max | |
| Power consumption | ≤0.5W @12/24V DC | |
| Output signal | RS485 | |
| Sensor parameter | Function | PIR motion detection, daylight sensor |
| Detection Area | RS485 protocol/remote setting: 100%/75%/50%/25% | |
| Hold Time | RS485 protocol/remote setting:10S/30S/1min/5min/10min/20min/30min | |
| Daylight Sensor report range | 0-1200lux | |
| Radius detection range(based on 100% sensitivity) | Tangential moving based on 3m high installation: 4-5m @25℃(radial moving detection range will shorten) | |
| Remote control | Available | |
| Mounting height | 2.5-4m typical value 3m | |
| Application environment | Drill hole | Φ45mm |
| Working temperature | -25℃...+50℃(detection range might differ based on different temperature ) | |
| Storage temperature | -40℃~+80℃ | |
| Warranty | 3 years(available due to product quality problem under indoor application) | |
| Certificate Standard | Certificate | Compliant with CE |
| Environmental requirements | Compliant to RoHS | |
| IP rating | IP20 | |
| “N/A” means not available | ||
3. Dimension
4. Wiring Diagram
Wiring layout suggestion:
1. Hand-in-hand wiring is highly recommended, yet star-topology or tree-topology is strongly deprecated
2. RS-485 layout wire length shall not be longer than 300m, and 12pcs sensors are the maximum quantity layout in one circuit
3. A 4-pin shield wire or class 6 network wire is highly recommended for layout
4. Our sensor doesn’t have terminal resistance. if there’s an impedance matching problem inthe RS-485 bus, we recommend connecting 2 pieces of 120Ω resistance in the terminal
5. Detection of radiation
6. Detection Signal
The product detects human moving signals, and below is a description of the moving signals:
Moving signal: detect the human significant moving (walking) in the detection area.
7. Remote Control MH18
For more information, please get in touch with our sales rep. for more details.