Laboratory Thermometers
Made of glass or metal, thermometers are a tool to measure temperature accurately. Glass thermometers have been strengthened through thermal tempering and the traditional one is a long stem with a silver bulb filled with mercury. Alcohol-filled ones are not as precise as the alcohol evaporates but they can read as low as -200 degrees centigrade. Apart from liquid-glass thermometers, electronic devices are increasingly used. Thermistors measure change in electrical resistance and convert it to changes in temperature. A bimetallic strip consists of two different metals bonded together which expand at different rates so the strip is forced to bend. This bending movement deflects a pointer over a calibration scale. This type is low cost but is not as accurate as a glass stem. Infrared thermometers are non-contact devices which convert infrared energy to an electrical signal and often have a laser targeting system. K-type are used for extreme temperatures and have interchangeable probes for air, liquid or surface. Other types include liquid crystal, quartz and gas resistance. Thermometers are basic pieces of laboratory equipment, whether for research, industry or education. They are used for monitoring experiments, maintaining a sterile work environment and calibrating other laboratory instruments and testing materials.
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ALCOHOLMETER %/VOL 0-100 W/O THERMOMETER (1 Supplier)
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ALCOHOLMETER %/VOL 0-30 W/O THERMOMETER (1 Supplier)
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ALCOHOLMETER %/VOL 0-70 W/O THERMOMETER (1 Supplier)
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ALCOHOLMETER %/VOL 30-100 W/O THERMOMETE (1 Supplier)
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ALCOHOLMETER %/VOL 60-100 W/O THERMOMETE (1 Supplier)
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Alicat 0-10 Vdc output for temperature 102T - Accessories (1 Supplier)
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Alicat 0-10 Vdc output for temperature 10T - Accessories (1 Supplier)
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Alicat 0-5 Vdc output for temperature 52T - Accessories (1 Supplier)
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Alicat 1-5 Vdc output for temperature 12T - Accessories (1 Supplier)
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Alicat 1-5 Vdc output for temperature 1T - Accessories (1 Supplier)
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Alicat 4-20mA output for temperature CT - Accessories (1 Supplier)
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Alicat Flow Vision SC Software FLOWVISIONSC - Accessories (1 Supplier)
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Alicat High Accuracy Calibration HC - Accessories (1 Supplier)
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Amarell Additional Transmitter E907610 - General Lab (1 Supplier)
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Amarell Adjustable Contact Thermometer T107250 - General Lab (1 Supplier)
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Amarell Adjustable Contact Thermometer T107270 - General Lab (1 Supplier)
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Amarell Adjustable Contact Thermometer T107320 - General Lab (1 Supplier)
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Amarell Adjustable Taper Joint Thermometer D265074 - General Lab (1 Supplier)
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Amarell Air Sensor Pt-100 E910654 - Temperature probes, Pt100 for ama-digit ad 20 th (1 Supplier)
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Amarell Alcoholmeter 30 - 40:0,1 H848026 - General Lab (1 Supplier)
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Amarell Alcoholmeter 30 - 40:0,1 H848028 - General Lab (1 Supplier)
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Amarell Alcoholmeter +5...+25: 0.2°C, 60-70:0,1%vol., H848172-FL - General Lab (1 Supplier)
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Amarell Alcoholmeter +5 ...+25:0,2°C, 70-80:0,1%vol., H848174S-FL - General Lab (1 Supplier)
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Amarell Alcoholmeter +5...+25: 0.2°C, 80-90:0,1%vol., H848176-FL - General Lab (1 Supplier)
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Amarell Alcoholmeter 90-100:0,1%vol., w/o therm., H848038 - General Lab (1 Supplier)
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