What is the black RECALL button for?
Pressing the RECALL button once will display the last speed measured. If you press it again it will show the previous reading before that. You can continue this process to see the previous ten speeds. You can also use the RECALL button to change speed measurement units on the Pocket Radar . You can measure in MPH (Miles per Hour), KPH (Kilometers per Hour), FPS (Feet per Second), and MPS (Meters per Second). To change which units you are showing, Push and Hold the black RECALL button. While holding the RECALL button down, Push and Release the red button. Then release the black RECALL button. Then the units used to display the speed will flash. To choose the units you want, push and release the red button to cycle through the choices of units. When you have selected the units you would like to see, press and release the black RECALL button and the Pocket Radar will read the speed in the units you chose. It will remain in this mode until this same sequence is used to change them again. A
