Shenzhen Merrytek Technology Co., Ltd.
Shenzhen Merrytek Technology Co., Ltd Intelligent Lighting Control
Add to Cart
RS-485 protocol surface-mounted PIR presence detector with 4m mounting height
1. Features
1) PIR motion detection
2) Exquisite appearance with planar rectangle Fresnel lens
3) Accurate RS-485 protocol output
4) Daylight sensor detection available
5) Detection area, hold time, and daylight threshold, etc, can be set by remote
6) Max detection range: 0-4m diameter from detection long side,0-1m diameter from detection short side
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 12 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 in the 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.