YOU ARE BUYING 4 PIECES OF THERMAL SWITCH

For other temperature models go to listing:  https://www.ebay.com/itm/234425995818

DESCRIPTION

Product Name: Thermostat 
Model: SW-9190  (KSD301)
Action Type: Normally Closed (N.C.)
Action Temperature: 90°C celsius / 194°F fahrenheit 
Voltage: AC 250V
Current: 10A @ 250V / 16A @ 125V
Tolerance: ±10℃
Material: Metal and Aluminum
Package: 4x Temperature Switch Thermostats. 

Switch terminals connect (closed circuit) at normal temperature until the surface temperature reaches 90°C degrees Celsius (194°F degrees Fahrenheit), then the circuit terminals disconnects (opens circuit) and stops passing voltage. When surface temperature cools down about 5 ~10 degrees C, the circuit terminals automatically reconnect (closed circuit). 
General-purpose, compact, large capacity, minute current thermostat. 
Application: for Household electric appliances, PC, projects.