Gadgets & Toys Collection
It's simple. Your surveillance operation will be underway in 4 simple steps: 1. Insert a mobile phone SIM card in the device (E.G. free PAYG SIM card from O2 etc) 2. Conceal the device where it cant be seen... 3. Dial the pay as you go number from your phone.. 4. Listen - now you can hear what they are really talking about.
Wrist blood pressure monitors can be accurate if used exactly as directed. However, according to the American Heart Association, it's best to use a home blood pressure monitor that measures blood pressure in your upper arm. Devices for the upper arm are also easier to check for accuracy than are wrist monitors.