WEB LINK: https://www.sonicinformed.co.za/catalogue/surveillance/smn-md7000;

Smanos MD7000 Ceiling-Mount PIR Motion Detector

With automatic temperature compensation technology, smanos MD7000 detects for tiny variations in the environment caused by human body movements and effectively minimizes false alarm. Easy to set up on a ceiling, the MD7000 works well in garages and all dwelling types, with a 360-degree effective range.

Specifications:
Power Supply: DC 3V (AA LR6 1.5V battery x 2)
Static Current: = 50 uA
Alarm Current: = 9.5 mA
Transmitting Distance: = 80 m (in open air)
Radio Frequency: 868 MHz
Housing Material: PC+ABS plastic
Operation Condition: Temperature:
-10°C ~ +55°C
Relative Humidity: =80% (Noncondensing)

-Weight: 200g
-Dimensions: (L)16 x (W)11 x (H)5cm