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RA02A-Wireless Smoke Detector

   

RA02A is a smoke detection alarm. RA02A has a built-in photoelectric smoke detector and buzzer. It can detect the smoke density in the environment and sound alarm when the smoke density exceeds the default value. At the same time, the alarm data can be transmitted to other devices for display. RA02A adopts SX1276 wireless communication module.

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RA02A is a smoke detection alarm. RA02A has a built-in photoelectric smoke detector and buzzer. It can detect the smoke density in the environment and sound alarm when the smoke density exceeds the default value. At the same time, the alarm data can be transmitted to other devices for display. RA02A adopts SX1276 wireless communication module.

• SX1276 wireless communication module
• 2x1.5V AAA alkaline batteries power supply
• LoRaWAN™ Class A compatible
• Frequency Hopping Spread Spectrum (FHSS)
• Configuration parameters can be configured through a third-party software platform
• Applicable to third-party platforms: Actility / ThingPark, TTN, MyDevices / Cayenne
• Low power consumption and long battery life Improved po

Electric:

Input power

2 x1.5V AAA alkaline batteries

Operating Voltage Range

2.3V – 3.3V

Low Battery Voltage

2.4V

Battery Lifetime

4.7 years
(conditions: ambient temperature 25°C, report once every 60min,
TX power = 20dBm, LoRa spreading factor SF = 10)

Standby current

12uA/3VDC

Working current while alarming

580mA/3VDC

Alarming dBm

85dBm @3m

Alarming concentration

0.65 – 15.5% obs/m


Frequency:

Frequency Range

863MHz-928MHz 470MHz-510MHz

TX power

US915 20dbm；
AS923 16dbm；
AU915 20dbm；
CN470 19.15dbm；
EU868 16dbm；
KR920 14dbm；
IN865 20dbm；

Rx sensitivity

-121dBm (FSK, Frequency deviation=5kHz,Bit Rate=1.2kb/s)
-136dBm (LoRa, Spreading Factor=12, Bit Rate=293bps) /p>

Antenna type

Build-in antenna

Communication range

10 km (line of sight)
Note: The distance may vary due to the environment.

Data transfer rate

0.3kbps – 50kbps (LoRa)
1.2kbps – 300kbps (FSK)

Modulation

LoRa/FSK
Note: One modulation method is required.

Supportable LoRaWAN Band

EU863-870, US902-928, AU915-928, KR920-923, AS923-1, AS923-2,
AS923-3, IN865-867, CN470-510
(Note: optional, to be configured before shipment)

Physical:
Dimension

D:106mm x H:40.6mm

Operating Temperature Range

-10°C – 55°C

Storage Temperature Range

-40°C – 85°C

Storage Temperature Range

<90%RH