WEB LINK: https://www.sonicinformed.co.za/catalogue/surveillance/smn-smk500;

SMANOS SMK500

Specifications:
Power Supply: DC 9V 6F22 battery x 1
Standby Current: = 5uA
Alarm Current: = 15mA
LED Frequency in Working State: -Once every 32 sec.
LED Frequency in Alarming State: Once every 0.62 sec.
Low Battery State: Beep once with a LED flash per 60s (last for 30 days)

Operation Condition:
Temperature: -10°C ~ +55°C
Relative humidity: =95% (non-condensing)
Monitoring Area: 20m²
Alarm Sound: 85dB/3m
Radio Frequency: 868 MHz
Transmitting Distance: = 80m (in open air)
Housing Material: ABS plastic

-Weight: 200g
-Dimensions: (L)15 x (W)11 x (H)5cm