A nice touch is the unbranded exterior that resists fingerprints and dust.
120V Self Regulating Heating Cable Strengthen Explosion-proof Snow Melt Tape
It is special design for pipe freeze protection and roof &gutter heating de-icing. Technology: The pipe heating cable smartly adjust its power output and never overheat or Burn. Apply the heating cable to the pipe in a straight line or spiral on the pipe.
Piezoelectric Ceramic Copper Buzzer Passive Piezo Disc 12mm, 15mm to 50mm Gold
Piezoelectric ceramic buzzer is a piezoelectric ceramic chip application of a device. The more common is made of cobalt, lead oxide formulation after sintering of titanium, piezoelectric ceramic sheet (pzt), due to the human ear is most sensitive to 3khz audio signals, so the production of the resonance frequency of the beeper is usually designed in the resonance frequency of 3khz or so.