The mercury-in-glass or mercury thermometer was invented by physicist Daniel Gabriel Fahrenheit in Amsterdam (1714). This, combined with over 20 Fahrenheit and dual ranges, from -196 to … Calibrated at manufacturer's recommended points or at your desired points depending on your specific requirements. Children’s decisions concerning investigation and treatment may be based on the results of temperature alone. Customers love its accuracy and style. Choose from our selection of threaded thermometers, noncontact thermometers, pocket thermometers, and more. The accuracy of a typical glass thermometer is approximately ±1 scale division. Earwax or a small, curved ear canal can interfere with the accuracy of a temperature taken with an infrared ear thermometer. The remaining (emergent) portion of the stem is exposed to the air. Description: Oven thermometers are individually serialized, and partial immersion versions feature a round glass swell to hold the thermometer in place. If you are looking for a way to get rid of that old standard thermometer, the EPA suggests giving it to your primary doctor since mercury is toxic. How to Use a Glass Thermometer. Glass Precision is the repeatability of successive measurements under the same conditions. Stands 12 inches high. It ranges from 150 to 600 degrees F. Not only will this thermometer tell you the temperature, but also what you’re doing! Definitions Thermco’s Precision Liquid In Glass Thermometers are manufactured with the finest glass manufactured under ISO2001 guidelines. Thermometer resolution should not be confused with Accuracy. We offer both digital and analogue styles with and without armor. The infrared tympanic thermometer may be a preferable option for the uncooperative patient. After 30 seconds, your thermometer should read 32° F. If it doesn't, it may need to be replaced or recalibrated. Infrared Comparator Cup: (fig C) This device allows you to compare the accuracy of an infrared thermometer to a calibrated immersion type thermometer at a temperature other than ice/water. Compare body temperature between glass mercury thermometer (GMT) and digital thermometer (DT).Method. Meeting the needs of the scientific and engineering communities since 1955. Item No. Ice Bath Test The ice bath test is the easiest way to test a thermometer for accuracy, assuming your thermometer will display temperatures of 32°F or less. Not surprising if you did not specify that you wanted this info. Thermometer-200° to 500°C, 0.0001° resolution Features: Platinum sensor insures linear response and high accuracy across the entire range Meter range -200.00° to 500.000°C ( -328.00 ° to 93 2.000°F), resolution 0.001° or 0.0001°, accuracy… NIST-traceable with data thermometers are factory calibrated to NIST-calibrated standards and include a certificate with the calibration data. Jon Brassey, Carl Heneghan. The resolution of an instrument is the smallest value that is shown on the display. The mean rectal tempera … Liquid-in-Glass Thermometers Let’s start our story with one of the most common thermometers used today, the liquid-in-glass (LiG) thermometer. To test a thermometer, first fill a tall glass with ice. In stock and ready to ship. The accuracy of a typical glass thermometer is approximately ±1 scale division. Glass Thermometer -10 to +110 155 mm For Measuring Water Liquid Home Brew Wine and Beer Or For Laboratory Lab Scientific Use Made In UK. Custom Masterflex Single-Use BioProcess Assemblies, Masterflex Single-Use Systems and Assemblies, You have successfully subscribed to our newsletter, Add more products on the full Quick Order page, Power/Voltage Controllers and Transformers, Gear and Positive Displacement Flowmeters, Conductivity, Resistivity, and TDS Control, Temperature Process Controllers and Alarms, Conductivity, Resistivity, and TDS Meters, Mesh Screen Discs, Sheets and Net Filters, High Accuracy Temperature Reference Probes, Masterflex Tubing Chemical Compatibility Database, Masterflex Tubing & Food Compatibility Database, Masterflex Pump Head Roller Material Compatibility Database, Safety Glove Chemical Compatibility Database. It … Mercury-in-Glass 0to300 C 0.1to0.5 C (Graduatedin0.5to2 C) 300to500 C 0.5to1.0 C Mercury-in-Glass 0to100 C0.03to0.05 (Graduatedin0.1to0.2 C) OrganicLiquid-in-Glass (Graduatedin1 C)-200to0 C 0.2to0.5 C TwiceayearNBSa The ASTM number refers to a thermometer's specific application. For Choose your thermometer by the length that will be immersed in the liquid or gas. Get Glass Thermometer at best price from Glass Thermometer Retailers, sellers, traders, exporters & wholesalers Their unique characteristics of wide range, precision, repeatability, and quick response create a unique challenge for the metrologist who is calibrating these instruments. Their unique characteristics of wide range, precision, repeatability, and quick response create a unique challenge for the metrologist who is calibrating these instruments. Correction factors are also provided for your convenience. My glass thermometer is 70 degree my digital is at 67. ... “The digital thermometer provides the best agreement with the mercury in glass thermometer. So which one is the most accurate. Get the best deals on Glass Thermometer Indiana Medical Thermometers and stay healthy at home while you shop our large selection of health care products. This study was carried out to assess the accuracy of three devices namely, liquid crystal forehead, digital electronic axillary and infrared tympanic thermometer, using a glass-mercury rectal thermometer as the control. There are two main types of thermometers which include the ear thermometer and an infrared forehead thermometer. “The digital thermometer provides the best agreement with the mercury in glass thermometer. If you perform the test correctly, and your IR thermometer is accurate, it should read approximately 32.0°F within the stated accuracy specification of your thermometer. 123 15. Find adjustable-angle options and more. Daniel Gabriel Fahrenheit, the father of thermometer, created the ‘mercury-in-glass’ thermometer in 1714, and changed temperature reading scenario for ever. These glass thermometers have an FEP coating that absorbs shock and contains glass and liquid for easy cleanup in case of breakage. Accuracy vs Precision: Accuracy is the difference between the measured value and the true value of a tested material. 4.5 out of 5 stars 135. The space above the mercury may be filled with nitrogen gas or it may be at less than a… ... Sumtm Thermometer, Mercury-free Dual Scale Classic Traditional Glass Accuracy Thermometer for … Kitchz Mercury-free Dual Scale Classic Traditional Glass Accuracy Thermometer for Home. Glass is only $3 and digi goes for 15 bones Digital can be more accurate but glass is more reliable. Any thermometer that has visible foreign objects inside the glass capillary, such as glass chips or any other particles, should be removed from service. To test a thermometer, first fill a tall glass with ice. Choose a glass thermometer by the length that will be immersed in the liquid or gas. 47°C). Children’s decisions concerning investigation and treatment may be based on the results of temperature alone. A total of 101 samples were taken with convenient sampling technique, but 98 were analyze… As the temperature of the liquid in the reservoir increases, it expands and rises into the capillary tube.