Feature:

1.Preset speed mode (high-mid-low speed). A gentle, pulsed stimulus begins to increase at a rate
2.Specifically designed for patient comfort. If the patient indicates perception, simply release the button. The stimulus stops immediately, but the numbers remain frozen on the face for about 3 minutes.
3.Convenient to operate Maximum stimulus--80.
Between 0-40, the patient feels ache and anesthesia, alive teeth nerve.
Between 40-80,with above-mentioned reaction,part of teeth nerve dead 80, no  above-mentioned reaction, dead teeth nerve.
4.The device turns itself off three minutes later after operationed (No wasted  battery)
5.Battery-operated, Standard 9-Volt battery, Extremely economical

Specification:

1.Output: DC 9V
2.Current: 50mA
3.Voltage range: DC 6.0-10.0V
4.Size: 186*38*24mm
5.Net Weight: 220g