RING WIFI SECURITY CAMERAS
Ring wifi security cameras for outside monitoring which you can install yourself. Includes motion detection, floodlights, two way speaking capability, a loud siren. Can be controlled from your phone and you receive notifications by phone. You can customise motion zones, light motion zones, times, etc.
Downfall is that it is connected to your electricity and wifi so if thieves disable your electricity from outside then these will not work. However, you will be notified that there is motion if someone is hanging around your electricity box [provided it is in view of your camera].
There are several different options available on Amazon:
https://www.amazon.co.uk/Ring-Floodlight-Cam-8SF1P7-BEU0-Floodlights/dp/B074G9DPXD/ref=sr_1_3?ie=UTF8&qid=1527421329&sr=8-3&keywords=ring+floodlight+security+camera
CAR KEY SIGNAL BLOCKER POUCH
Thieves can use wireless car key signal readers which copy electronic signal from your car key and then use it to steal your car. This can happen within a matter of seconds from outside your property and without breaking car windows. Wireless signal from your car key transmits through walls and doors of your house. To prevent this you can either build a Faraday box made of thick aluminium foil to store your keys whilst in the house [you can see online how to do this] or for a more convenient solution you can purchase a foil lined car key signal blocking pouch.
Amazon have a selection
https://www.amazon.co.uk/s/ref=nb_sb_ss_fb_1_15?url=search-alias%3Dautomotive&field-keywords=car+key+blocker&sprefix=CAR+KEY+BLOCKER%2Cdiy%2C281&crid=OKCOV1IN
