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LORAWAN Wireless System

LoRaWAN wireless sounder visual indicator

SJ-LR08

Features:

  1.  Sounder/visual indicator setting freely, and it is suitable for different environment.

  2.  Three types of battery power supply: DC3.7V rechargeable battery pack, DC3V normally battery pack, or 24V Power Adapter.

  3.  With super bright white LED as source that features markedness, long lifespan, and low consumption.


Technical Parameters:
Working voltage:
Main power DC 24V, Backup power DC 3.7V rechargeable battery pack 2900 mAh.
Monitoring current:<7 mA @main power DC 24V, <100 uA@backup power DC 3.7V
Alarm current:<50 mA@ main power DC 24V, <200 uA@backup power DC 3.7V
Status indicator:during normal operation, the green LED will flicker about every 30 seconds; upon battery low power, the red LED will flicker about every 30 seconds; in an alarm status or a testing status, the red LED will remain lit.
Flashing frequency:1 Hz~2 Hz
Alarm volume:75 dB ~ 120 dB
Ambient conditions:

temperature: -10℃~+50℃    Relative humidity: ≤95%(40℃, no condensation)

Standard:Standard: GB 26851-2011(CHINA)