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

Smanos SMK500 Smoke Alarm With ABS Plastic Casing And Transmitting Distance Up To 80m And Built-in Alarm Horn - White Colour

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

What's in the box:
-1x Smanos SMK500 Smoke Alarm