Display type indoor air quality detector BM5011 Purpose:
This product is widely used in various indoor environments such as personal homes, office buildings, hospital consultation rooms, school classrooms, laboratories, borrowing rooms, storage rooms, winery wine cellars, tea houses, preschool classrooms, airport VIP waiting rooms, etc. Users can customize temperature, humidity, and air pressure according to their actual needs VOC、CO2、O2、 Parameters such as formaldehyde, carbon monoxide, smoke, etc.


Display type indoor air quality detector BM5011Main features:
This product is affordable and of high quality, with a neat and elegant appearance. In addition to the parameters tested above, it can also detect PM10, smoke, and flammability. Suitable for indoor home environments, compatible with both wired and wireless modes, making it easy for customers to use.
1. Real time online monitoring of key areas in the home (such as living rooms, bedrooms, children's and elderly living rooms), controlling the delivery of fresh air or activating purification devices to achieve the goal of improving management;
2. Monitor multiple environmental parameters indoors to assist users in selecting air purification and filtration equipment that meets efficiency standards and has appropriate airflow;
3. Assist users in arranging purification machines reasonably to achieve efficient regional purification;
4. Proactively indicate purification efficiency and monitor the failure of ventilation and filtration materials.


Display type indoor air quality detector BM5011Main working parameters:

BM5011X-DTUX Equipment Selection: Specification and Model Testing Items:
BM5011X-DTU1 Temperature, humidity, air pressure PM2.5、VOC
BM5011X-DTU2 Temperature, humidity, air pressure PM2.5、VOC、CO、CO2
BM5011X-DTU3 Temperature, humidity, air pressure PM2.5、VOC、CO2、 Formaldehyde
BM5011X-DTU4 Temperature, humidity, air pressure CO、CO2
BM5011X-DTU5 Temperature, humidity, air pressure VOC、CO、CO2
BM5011X-DTU6 temperature, humidity, air pressure VOC、CH2O、CO2
BM5011X-DTU7 Temperature, humidity, air pressure CO2、O2
BM5011X-DTU8 Temperature, humidity, air pressure PM2.5、VOC、 Smoke CO2、O2
BM5011X-DTU9 Temperature, humidity, air pressure PM2.5、VOC、CO2、O2
BM5011X-DTU10 Temperature, humidity, air pressure PM2.5、VOC、O2
BM5011X-DTU11 Temperature, humidity, air pressure O2
BM5011X-DTU12 Temperature, humidity, air pressure PM2.5
BM5011X-DTU13 Temperature, humidity, flammability PM10、 smoke

Display type indoor air quality detector BM5011Communication protocol section:

1. Adopting MODBUS protocol RS485 RTU communication method, master-slave half duplex communication, master calls slave address, slave responds to communication.

2. Data frame format: 1 starting address bit, 8 data bits, 1 stop bit, no checksum.

3. Baud rate: 9600bps.

4. The message frame contains: address field, function code field, data field, CRC16 detection field.

5. This device supports hexadecimal 03H and 10H function codes (i.e. decimal 03 and 16 function codes). Among them, 03H is used to read the device stack, and 10H is used to modify the device stack.

Precautions for using the display type indoor air quality detector BM5011：

(1) The RS485 communication line requires shielded twisted pair cables, and if necessary, two 250 Ω terminal matching resistors are needed.

(2) The usage environment should be free of conductive dust, corrosive metals, and gases that damage insulation, and avoid direct sunlight and rain.

(3) Working in a high humidity environment above 90% RH for a long time will cause drift.

(4) Avoid placing components in environments with salt spray, acidic or oxidizing gases (such as sulfur dioxide, hydrochloric acid, etc.).

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