AQM-1200 - 9 in 1 Air Quality Monitor
Features
AQM-1200 can measrue (1) Temperature (-40 ~ 100 C), (2) Humidity (0 ~ 100%), (3) CO (0 ~ 500 ppm) (option), (4-6) PM1.0/2.5/10 (0 ~ 999 ug/m3), (7) CO2 (400 ~ 5000 ppm), (8) HCHO (0 ~ 2000 ug/m3), (9) TVOC (0 ~ 5000 ug/m3). AQM-1200 displays the measured data with a 2.4″ TFT color display.
AQM-1200 can transmit the measured values using (1) MQTT/WiFi, (2) WiFi and (3) LoRa techniques. Method (1) sends MQTT messages to the remote MQTT broker directly. Methods (2) requires MQTT server and method (3) requires LoRa Gateway to relay the received messages to the MQTT Server. Messages processed in the MQTT Server can be displayed in the remote PC monitor via a private VPN link.
Hardware Features
AQM-1200
WiFi Specification
LoRa Specification
Power Supply
Measure T, H, CO (option), PM1.0/2.5/10,CO2, HCHO, TVOC
IEEE 802.11b/g/n
433MHz, BW 125KHz, SF 10
DC 12V
Software Features
Message Protocol
Push Notification
MQTT, JSON
LINE
AQM-1200 with MQTT
Method (1) MQTT/WiFi is the simplest way to send messages to the MQTT broker in the Internet and be relayed by the MQTT broker and received by the APP in the smart phone.
AQM-1200 can measrue (1) Temperature (-40 ~ 100 C), (2) Humidity (0 ~ 100%), (3) CO (0 ~ 500 ppm) (option), (4-6) PM1.0/2.5/10 (0 ~ 999 ug/m3), (7) CO2 (400 ~ 5000 ppm), (8) HCHO (0 ~ 2000 ug/m3), (9) TVOC (0 ~ 5000 ug/m3).
AQM-1200 send (publish) 9 Topics to the public EMQX broker via the Internet. The EMQX public broker re-sends the MQTT messages to the Smart phone, i.e., the Smart phone subscribes the exact 9 Topics to the EMQX broker.
The Smart phone receives the MQTT messages and uses the APP (MQTT Panel) to diplay the measured results of the MQTT messages. The local MQTT server (MQSRV) can also receives the MQTT messages and processes the received values (Voltage, Current, Power, Energy and Frequency) and displays the values on the PC screen as shown in the Figure.
