The man and the woman entered the store on the Outer Ring Road at Beeston, Leeds, on Sunday January 28.
Filmed evidence shows that at around 3.45pm the man was seen to select a computer monitor from a display and hide it beneath some shelving.
The man then wandered off again and met up with the woman.
Together they browsed around
They separated and the man then picked up the monitor, made his way to the front of the store and placed the monitor near the exit before walking out.
Returned
But a short time later he went back into the store, picked up the monitor from the spot where he had left it and walked towards the exit door.
His woman companion then opened the door and both left the premises with the monitor without paying for the goods.
The man who took the computer monitor was described as white, in his early 30s, 6ft tall and with short dark hair.
He was wearing a light blue shirt, long black coat and trousers at the time of the theft.
When he first entered the store, he was wearing glasses, which he later removed.
The woman was also white and aged in her late 20s or early 30s.
She had long blonde hair worn in a ponytail and was wearing a long black overcoat, black trousers and red shoes.
She also carried a white handbag.
Anyone with any information about the couple or the incident is urged to ring Crimestoppers on Freephone 0800 555 111.
Callers will not be asked to give their names and they could qualify for a Crimestoppers cash reward.
