Want to return Detech Fire Alarms.
After reading your Additional Details I have to wonder how it is that you have owned your camera for several years and still shoot in Program Auto. Its like someone buying a car and never learning to drive. For your night fire photography you really need to invest in the AF Nikkor 50mm f1.4 lens so you can use a lower ISO. You really should consider taking a few photography classes and learn to actually use your camera.
A thermostat is a variable resistor (rheostat) connected to a device which measures the temperature being controlled. This detector can take many forms a mercury switch (as in a home thermostat), or a thermocouple (an electrical lead whose conductivity varies based on the temperature) which is used in clothes irons and most modern ovens. As the detector senses the desired temperature is reached, it cycles power to the heating elements (or the A/C unit in the case of a home thermostat). Hope this helps.
Oven, Bread Maker, expensive Toasters, furnace, air conditioners,, pools, hot tubs,
refrigerator, freezer, furnace, oven, toaster
Ovens, toasters, clothes irons, furnaces . many more.
