Scanner watch

The scanner watch is a device used by Sarah Jane Smith to detect alien life, and can identify the species and origin of that life. Superficially, it appears to be a normal wristwatch, but the face of the watch conceals scanner screen. Like the Sonic lipstick, it was left by the Doctor for Sarah jane inside K-9 Mark IV.

Capabilities
The scanner watch can scan, it also acts like a geiger counter making louder noises as it gets closer to an alien source.

It is capable of connecting to the local power grid and never loses power.

Detected the Bane in side the Bubble Shock factory and in side a bottle of Bubble Shock that Kelsey Harper had.

It was going to connect to the local power grid for Sarah jane to see how long the power cut would be on for.

It started to beep and told Sarah Jane that the Kalazian lights were about to appear.

Sarah Jane used it to scan Maria Jackson's old house, after she moved to America to see if any thing alien might have been left there.

Sarah Jane used it to scan Martin Trueman to see if he was an alien.

Sarah Jane used it to see if the The Trickster had manifested in 1951 yet.

Sarah Jane used it to scan Gita Chandra flower shop Blooming lovely to see what sort of alien had taken her.

Detected that Androvax was hidden inside a girl.

Behind the Scenes
Character Options has released a Scanner Watch replica, the toy is slightly different from the original.

The watch's face is a wine Colour rather than white

The Sarah Jane Adventures logo is on the watch's face and on the strap.

The watch released is only based on the the scanner watch seen in Invasion of the Bane.