Handheld disposable cautery are battery operated and are usually sold with replaceable tips. These thermal cautery units are designed for use in research laboratories.
Coagulation - Use higher voltage in a pulsed manner to produce heat more slowly. With this method, tissue damage is more widspread (a few millimeters from the probe) and blood coagulates.
Cutting - Use lower voltage with a continuous AC current to produce heat rapidly and completely vaporize the tissue at the tip of the probe.
Looking for a particular Bovie part number? Find the WPI part number of a Bovie instrument.