Shenzhen Merrytek Technology Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 10000 pcs/month |
| Delivery Time | 1, Sample and small order: Within 5 working days after receiving your payment. 2, Bulk order: 3-4 weeks after receiving deposit. |
| Packaging Details | White box+ White box tags+ Clapboard+ Carton(K=A) |
| Working voltage | 12-24Vdc |
| Working mode | RS485 version |
| Mounting height | 2.5-4.0m |
| Life time | 5 years warranty@Ta 230V full load |
| Working Power | ≤1.2W |
| Working frequency | 24GHz ±24.25GHz |
| Detecting type | Major/Minor/Micro Motion detection |
| Mounting | Flush mounting |
| Brand Name | Merrytek |
| Model Number | MSA237D 99 485 |
| Certification | CE |
| Place of Origin | Shenzhen, China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 10000 pcs/month |
| Delivery Time | 1, Sample and small order: Within 5 working days after receiving your payment. 2, Bulk order: 3-4 weeks after receiving deposit. | Packaging Details | White box+ White box tags+ Clapboard+ Carton(K=A) |
| Working voltage | 12-24Vdc | Working mode | RS485 version |
| Mounting height | 2.5-4.0m | Life time | 5 years warranty@Ta 230V full load |
| Working Power | ≤1.2W | Working frequency | 24GHz ±24.25GHz |
| Detecting type | Major/Minor/Micro Motion detection | Mounting | Flush mounting |
| Brand Name | Merrytek | Model Number | MSA237D 99 485 |
| Certification | CE | Place of Origin | Shenzhen, China |
| High Light | RS-485 motion detector flush mount ，24G MMWAVE presence sensor ，flush mount presence detectors | ||
RS-485 version 24G MMWAVE Presence and motion detectors with flush mounting
1. Parameters
| Input/Output | Input voltage | 12-24V DC |
| Rated voltage | 24V DC | |
| Working Current | @12Vdc:80±3mA @24Vdc:42±3mA | |
| Working Power | ≤1.2W @24V DC | |
| Output signal | RS-485 (factory setting is data report mode, and you can switch to data inquiry mode by Merrytek WeChat mini program) | |
| Load type | Data report/data inquiry | |
| Sensor Parameter | Radar frequency | 24GHz -24.25GHz,ISM band |
| Transmitting Power | 5mW Max. | |
| Detection Area | 0-4m(setting by merrytek mini program) | |
| Hold Time | 3-7200s (setting by Merrytek mini program). Remark: For better presence detection, the hold time shall be set to>30S | |
| Daylight threshold | 5-2000Lux(setting by merrytek mini program,when value set as 2000lux,daylight sensor is disabled) | |
| Daylight sensor range | 0-2000Lux | |
| Radius detection range (based on 4m gear and medium sensitivity) | major/minor/micro movement(3m height installation): 4±0.5m(based on 41㎡ open area test and might change due to different space) | |
| Sensitivity | high/medium/low | |
| Remote control | Unavailable | |
| Merrytek mini program | Available | |
| Mounting height | 2.5-4.0m typical value: 3m | |
| Detecting Angle | 120° | |
| Application Environment | Drill hole | Φ50-55mm |
| Working Temperature | 0℃...+50℃ | |
| Storage Temperature | -25℃~+80℃ Humidity:≤85% (non-condensation) | |
| Certificate Standard | Certificate | FCC/RED |
| Environmental Requirement | Compliant with RoHS | |
| IP Rating | IP20 | |
| Guarantee | 5 year(only for product quality problem) | |
| Note: "N/A" means not available | ||
2. Product Function
3. Dimension
4. Wiring
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 pcs of sensors is the maximum quantity layout in one circuit
3.4-pin shield wire or class 6 network wire is highly recommended for the 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
6. Initialization
When powered on, the sensor indicator will stay on for 15s for recognizing the application room size, after that sensor will enter a 10s flashing self-checking phase, after that, it will enter a 20s detection cycle, if's presence is detected, the sensor will report absence. During initialization, the sensor will not detect a moving signal, and you can use the Merrytek WeChat mini program to adjust the detection area,hold time, daylight sensor, etc, parameters.
7. Installation Instructions
Embedded mounting installation
8. Factory Default Setting
Detection Area: 4m Hold Time: 30S Indicator Light: open Sensitivity: medium sensitivity
9. RS-485 Protocol
Details can be find on the specs.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Employee Number:
200~300
Ecer Certification：
Verified Supplier
Focus on intelligent lighting control and innovate constantly！ About Merrytek Shenzhen Merrytek Technology Co. Ltd, founded in 2011 in Shenzhen China. For more than 13 years, we have been dedicated to research electronical products for professional lighting & smart co... Focus on intelligent lighting control and innovate constantly！ About Merrytek Shenzhen Merrytek Technology Co. Ltd, founded in 2011 in Shenzhen China. For more than 13 years, we have been dedicated to research electronical products for professional lighting & smart co...
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