These wrist blood pressure monitors seems pretty good value at £9.99, they will be instore at Lidl from Monday 09/12/13.
Product Information :-
Fully automatic blood pressure and pulse measurement.
With 2 x 60 memory spaces to keep track of data.
Stores last 3 measurements, calculates average values and warns of potential cardiac arrhythmia
Batteries and practical storage box included
3 year manufacturer's warranty