Simply place the Digitest's autoclavable tip on the suspect

tooth and press the "test" button. A gentle, pulsed stimulus

begins to increase at a rate you've pre-selected (slow -

medium - fast). Because there are no sudden jumps in power

(as when you twist a knob), the patient feels the stimulus long

before it crosses the "pain" threshold. Large LEDs indicate the

strength of the stimulus.

If the patient indicates perception, you simply release the

button. The stimulus stops immediately, but the numbers remain

frozen on the face for about 5 seconds. Then the device turns

itself off (No wasted batteries.)