Specification:
Model : KSD301.
Material : Metal, Plastic.
Size : 33.2 x 33 x 13.1 mm / 1.3 x 1.3 x 0.5" (LxWxH) .
Contact : N.O(Normal Open).
Action Temperature : 150 Degree Centigrade.
Withstand Voltage: 250V.
Overload Current: 10A.
Operating Temperature: 35 Degree Centigrade.
Insulation resistance: 100M Ohm or more.
Contact resistance: 50m Ohm or less.
It is normally open until the surface reach to 150 degrees Celsius, and then the switch closes and automatically resets.

Package included:
2pcs Normally open Temperature Switch