LCD thermometer : At this thermometer, the IC thermo sensor (S8100) or the diode (1S1588) is used as the thermo sensor. When using the IC thermo sensor, the thermometry to +100°C from -40°C is possible. Also, when using the diode, the measurement to +150°C from -20°C is possible. Both sensors are contained in the kit. This time, I used the diode as the thermo sensor to measure more than +100°C. ICL7136 of Intersil (Harris) is used for the thermometer and is measuring the change of the forward direction minute voltages of the diode by the temperature. The 3-1/2 digits liquid crystal display (SP521PR) is used for the display. The most significant digit can display only "1". The consumption electric power of ICL7136 is very small and it is possible to operate about 3 months continuously with the 9-V cell. The main parts are contained in the kit. The plastic case and the cell are contained. But, there is not a connection cable of the sensor. More>>

Handheld Digital Thermometer: Accurate temperature measurements are becoming increasingly important, especially in regarding energy savings, indoor air quality and environmental protection. You can add humidity and/or velocity measuring to the meter when you want. In this way you will always have a measuring instrument corresponding to the latest technology. These meters are supported with our user-friendly, Basic Comfort software which can be used for programming, data processing, and even bar-coding. Our modular design allows for easy upgrades to the instrument as they are developed. Accurate temperature measurements of liquids, semi solids, air and surfaces are performed by RTD (Pt 100) probes according to DIN IEC 751. Description: The precision temperature / humidity measuring instrument includes the basic parameters temperature, CO, CO2, rpm, mV and mA and %RH. Rapid measurement with accurate temperature probes. The measuring instrument extrapolates the final value. Highest precision due to system calibration (measuring instrument + probe) Calibration data is saved in the probe. More>>

Handheld Standards Thermometers: With the Super-Thermometer, Black Stack, and Tweener thermometers, Hart established itself as the clear product leader for thermometer readouts. Our pattern of offering more power and more versatility for less money is indisputable. Another case in point: Hart offers the two most powerful handheld thermometers in the world. The Models 1521 and 1522 are the first standards thermometers to fit into a battery-powered handheld package. They’re as accurate as ±0.005°C! You’ll only find this level of accuracy in large desktop units that cost three times more. It’s no wonder we call the 1521 the Little Lord Kelvin of thermometry. Fitting easily into your hand and weighing only 1 pound (0.4 kg), these thermometers can go anywhere. And when they get there, you can have total confidence in the accuracy of your measurements. The 1522 has the power of a full data logger, with memory to hold 10,000 readings. More>>

Thermocouple Thermometer : Now for the first time, you can get a tough little thermocouple thermometer for just less than $50, including the probe! The competition wants nearly twice this much for a thermocouple meter and probe. Thermocouples are preferred in food and other applications for their fast response and wide range. The Thermamite reaches 100% of the measured value in about 10 seconds, which is at least twice as fast as similarly priced thermistor meters. A pointed penetration probe is permanently attached. Specifications below include probe error. The Thermamite can be recalibrated by you or at our own NIST-traceable lab. At this price you can afford to use real thermocouples! You’ll get faster and better readings than any other thermometer under $50! Features: •Lowest cost Type K thermocouple! •10 second readings. •Handy size. •Big display. More>>

Instant Read Pocket Thermometer: The Classic Instant Read Pocket Thermometer has a 1 inch dial and a 5 inch stem with a range from 0 to 220 degree F. The Classic Instant Read Pocket Thermometer features a shatterproof plastic lens, a full perimeter highly visible dial, a protective case, and is made of durable stainless steel, and is NSF listed. Taylor 5989 Our Number - A42268 More>>

Principle of thermoelectric thermometer: http://www.anritsu-meter.co.jp/epg/sensor/genri.htm