A clinical mercury thermometerGalileo thermometerMercury-in-glass thermometer
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Cooking Thermometers

The thermometer, is a device that measures temperature or temperature gradient, using a variety of different principles. The word thermometer is derived from two smaller word fragments: thermo from the Greek for heat and meter also from Greek, meaning to measure. more...

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A thermometer has two important elements, the temperature sensor (e.g. the bulb on a mercury thermometer) in which some physical change occurs with temperature, plus some means of converting this physical change into a value (e.g. the scale on a mercury thermometer). Industrial thermometers commonly use electronic means to provide a digital display or input to a computer.

Thermometers can be divided into two groups according to the level of knowledge about the physical basis of the underlying thermodynamic laws and quantities. For primary thermometers the measured property of matter is known so well that temperature can be calculated without any unknown quantities. Examples of these are thermometers based on the equation of state of a gas, on the velocity of sound in a gas, on the thermal noise (see Johnson–Nyquist noise) voltage or current of an electrical resistor, and on the angular anisotropy of gamma ray emission of certain radioactive nuclei in a magnetic field.

Secondary thermometers are most widely used because of their convenience. Also, they are often much more sensitive than primary ones. For secondary thermometers knowledge of the measured property is not sufficient to allow direct calculation of temperature. They have to be calibrated against a primary thermometer at least at one temperature or at a number of fixed temperatures. Such fixed points, for example, triple points and superconducting transitions, occur reproducibly at the same temperature.

Internationally agreed temperature scales are based on fixed points and interpolating thermometers. The most recent official temperature scale is the International Temperature Scale of 1990. It extends from 0.65 K to approximately 1358 K (−272.5 °C to 1085 °C).

Read more at Wikipedia.org


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Taylor 516 Connoisseur Series Tea Thermometer & TimerTaylor 516 Connoisseur Series Tea Thermometer & Timer $18.95 Kitchen Digital Food Thermometer Cooking sensor ProbeKitchen Digital Food Thermometer Cooking sensor Probe $7.59
Kitchen Bbq Digital Cooking Food Meat Thermometer #5120Kitchen Bbq Digital Cooking Food Meat Thermometer #5120 $0.99 100pcs Pop-up food thermometer100pcs Pop-up food thermometer $20.00
Nip New Candy/Fry Thermometer Kitchen CollectionNip New Candy/Fry Thermometer Kitchen Collection $6.35 Taylor 5911 Classic Candy-Deep Fryer-Jelly ThermometerTaylor 5911 Classic Candy-Deep Fryer-Jelly Thermometer $8.49
Maverick Redi Chek Roast Alert Digital Thermometer Et84Maverick Redi Chek Roast Alert Digital Thermometer Et84 $24.99 vintage cooking candy thermometervintage cooking candy thermometer $0.99
Remote Cooking ThermometerRemote Cooking Thermometer $10.00 Digital Kitchen Meat Food Cooking Barbeque ThermometerDigital Kitchen Meat Food Cooking Barbeque Thermometer $9.99
Digital Cooking Probe Meat Thermometer Kitchen BbqDigital Cooking Probe Meat Thermometer Kitchen Bbq $5.44 Maverick Digital Roasting ThermometerMaverick Digital Roasting Thermometer $15.00
Oven Thermometer Barbecue Temperature Indicator NewOven Thermometer Barbecue Temperature Indicator New $4.99 Thermo Fork Meat Thermometer By Trucook Poultry SteaksThermo Fork Meat Thermometer By Trucook Poultry Steaks $8.95
Digital Kitchen Food Bbq Cooking C/F Thermometer It-101Digital Kitchen Food Bbq Cooking C/F Thermometer It-101 $6.68 Black Lcd digital Thermometer ,cooking thermometerBlack Lcd digital Thermometer ,cooking thermometer $0.55
Electric Digital Bbq Grill / Oven Meat Thermometer ForkElectric Digital Bbq Grill / Oven Meat Thermometer Fork $18.99 Kitchen Digital Thermometer Cooking Probe Meat SensorKitchen Digital Thermometer Cooking Probe Meat Sensor $0.99
Kitchen Bbq Digital Cooking Food Probe Meat ThermometerKitchen Bbq Digital Cooking Food Probe Meat Thermometer $5.79 Vintage Brass Taylor Home Candy ThermometerVintage Brass Taylor Home Candy Thermometer $3.95
Slth600 100°F to 600°F Folding Liquid Oven ThermometerSlth600 100°F to 600°F Folding Liquid Oven Thermometer $12.00 Kitchen Digital Thermometer Cooking Food sensor ProbeKitchen Digital Thermometer Cooking Food sensor Probe $16.34
Food Thermometer Temperature Bbq WaterIce Sensor #5120Food Thermometer Temperature Bbq WaterIce Sensor #5120 $0.99 Products Plus Bbq Therometer ForkProducts Plus Bbq Therometer Fork $2.99
Redi Chek Pro Electronic Food Probe Et-32Redi Chek Pro Electronic Food Probe Et-32 $19.99 Lcd Thermometer Cooking Food Bbq Sensor Probe Nt8Lcd Thermometer Cooking Food Bbq Sensor Probe Nt8 $6.59
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Lcd digital Thermometer,food thermometer, kitchen toolsLcd digital Thermometer,food thermometer, kitchen tools $0.01 Taylor 5990 Commercial Meat ThermometerTaylor 5990 Commercial Meat Thermometer $14.20
Maverick Bbq Fork Et-54Maverick Bbq Fork Et-54 $12.99 Kitchen Digital Thermometer Cooking Food Sensor 16-157Kitchen Digital Thermometer Cooking Food Sensor 16-157 $8.29
wholesale, food/meat thermometer, digital, cook easilywholesale, food/meat thermometer, digital, cook easily $4.45 Taylor 3518 Digital Cooking Thermometer with AlarmTaylor 3518 Digital Cooking Thermometer with Alarm $17.95
10 packs Pop-Up Thermometer/timer for beef10 packs Pop-Up Thermometer/timer for beef $3.99 Solar Panel Digital Thermometer Kitchen CooK Bbq Hvac +Solar Panel Digital Thermometer Kitchen CooK Bbq Hvac + $4.77
Digital cooking Thermometer sharper image NibDigital cooking Thermometer sharper image Nib $19.99 Oven ThermometerOven Thermometer $0.99
Digital Food Cooking Thermometer Kitchen Meat 300°C a0Digital Food Cooking Thermometer Kitchen Meat 300°C a0 $5.99 Brand New Cooking Bbq Kitchen Thermometer Wt1Brand New Cooking Bbq Kitchen Thermometer Wt1 $4.90
Easy-Read-Lightweight-Ele ctronic Probe Thermometer $1Easy-Read-Lightweight-Ele ctronic Probe Thermometer $1 $1.00 Maverick Barbfork Bbq Bar B Fork Grill Lcd Et-53 NewMaverick Barbfork Bbq Bar B Fork Grill Lcd Et-53 New $11.99
Maverick Cold Chek Digital Refrigerator Thermometer Maverick Cold Chek Digital Refrigerator Thermometer $26.99 Cooked Perfect Poultry, Beef & Fish Thermometer 3-PackCooked Perfect Poultry, Beef & Fish Thermometer 3-Pack $14.95
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Prices current as of last update, 11/20/09 4:15pm.

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