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thermistor experiment pdf

NTC thermistors are used as resistance thermometers in low-temperature measurements of the order of 10 K. NTC thermistors can be used also as inrush-current limiting devices in power supply circuits. Thermistor is usually used instead of different temperature sensors because they are cost effective. You'll put the 1157 light lamp in a cup containing a known amount of water and measure the electric power delivered to the lamp and the rate of temperature rise of the water. Experimental are analyzed and the parameters determining the performance and working of … Temperature is maintained within the ±3˚C tolerance, after eliminating the spikes in the readings. 0000001779 00000 n A thermistor is a type of resistor whose resistance strongly depends on temperature.A thermistor is a temperature-sensing element.The aim of experiment is to find its characteristics and temperature coefficient of resistance. x�bb�d`b``Ń3��n0 ��q In other words, as its temperature changes, so too does its resistance and as such its name, Thermistor is a combination of the words THERM-al… %%EOF … 0000002297 00000 n informal experiments, there was no apparent di erence between the 3.3V and 5V supplies. Report a problem. 0000004927 00000 n The thermistors used in this module are made of semiconductor material. mp3, 738 KB. 4. Maintaining the correct temperature is critical to prevent food … The sensing device has two thermistors that form a part of a bridge circuit and some catalyst (e.g., hopcalite, a mixture of manganese and copper oxides) coated on one of the thermistors to decompose ozone. Draw sketch of bead, probe, disk, rod type thermistor. 0000006454 00000 n Physics; Physics / Energy and electricity; 14-16; View more. Prices start at $0.10 with some vendors and range up to $25. The ability of a thermistor’s electrons to move between atoms depends strongly on temperature which makes them a useful device for using electricity to measure changes in temperature. 0000008174 00000 n Thermistor temperature reading over a few oscillations of temperature regulation, with 1˚C overshoot. 0000007587 00000 n Use the thermometer to note the temperature of the glycerol and thermistor. 4. 177 45 0000004904 00000 n 0000003829 00000 n Thermistor. THE THERMISTOR Like the RTD, the thermistor is also a temperature sensitive resistor.While the thermocouple is the most versatile temperature transducer and the PRTD is the most stable, the word that best describes the thermistor is sensitive. When sample air containing ozone is passed through the cell, ozone heats catalyst-coated thermistor, and thus a signal related to ozone concentration is obtained. Updated: Jan 25, 2015. pptx, 193 KB. 0000001902 00000 n Study the front panel carefully and observe the buttons on the screen. • To sense and control fan accordingly EQUIPMENT: 1. A glass of ice water USB-6008 Thermistor Thermistors Thermistors are resistors that vary with temperature. An experiment was conducted on an NTC thermistor to acquire the resistance response to temperature change between 25 oC to 65o C which was in turn used for the model linearization. 1 PHYSICS EXPERIMENTS “Imagination is more important than knowledge.”- Albert Einstein “The only thing that interferes with my learning is my education.” - Albert Einstein “Two things are infinite: the universe and human stupidity; and Of the three major categories of sensors, the thermistor exhibits by far the largest parameter change with temperature. EAS 199B { Thermistor Measurement 2 V s V o R t R Figure 1: Voltage divider circuit (left) and sample breadboard wiring (right) for measuring voltage to indicate thermistor resistance. trailer We regularly use NTC thermistors in automotive applications. 22 g solid wire 8. Seebeck Voltage Record the resistance of the thermistor using the ohmmeter. LM339 4. 0000150268 00000 n FREE (24) fatenalkazemi Newton First and Second Laws . Fundamental laws 1. A change in temperature will change the input parameters to the op-amp. P5-06 Resistance of LDR & thermistor. What are the two basic types of Thermistor? Physics; Physics / Energy and electricity; 14-16; View more. LDRs and thermistors and diodes. But at high temperatures the resistance of the thermistor is low and more current flows through it. 6. . 0000003398 00000 n LEDs PRE-LAB: Reading pages 488 to 492 of text book. 0000003163 00000 n On the basis of observations state whether Thermistor is a linear or nonlinear transducer. Their resistance range from 0.5 Ω to 75MΩ and they are available in wide variety of shapes and sizes. <<11FAA45F12D2284E8B89AACC3D3DCF83>]>> Solderless breadboard 7. 0000188846 00000 n INDUSTRIAL ELECTRONICS LAB REPORT M.ZAHID TUFAIL 10-EL-60 The resistance of the NTC Thermistor varies over a wide range for the temperature range available within the heated enclosure. 3. Start taking readings by pressing [Read] button over different temperature values. 5. 6. 0000189367 00000 n Thermistors are also commonly used in modern digital thermostats and to monitor the temperature of battery packs while charging. Thermistors are used as temperature sensors, for example, in fire alarms. We can measure the resistance of a thermistor using an ohmmeter.If we know the exact relationship between how changes in the temperature will affect the resistance of the thermistor – then by measuring the thermistor’s resistance we can derive its temperature. 0000000016 00000 n This resource is designed for UK teachers. What is the maximum value of Thermistor resistance in the experiment? F¿Ù óşæÓÿ-¦ó[^黶öwiãïÜ&ß¹L¿3Y|xòíñw¶§ßù�~ç}ş]üõw…W¿�ÿú›÷éo¾'¿Ù+pt³ó ¯[R£ Now that you have calibrated the thermistor you can do the second experiment. Thermistors are manufactured by a large variety of ven-dors. 7. H‰TTyT“WÿBòQ0¬Áäı‚h1! Experiment 5: Thermocouples (tbc 1/14/2007, revised 3/16/2007, 3/22,2007, 3/16/2008) Objective: To implement a thermocouple circuit, including thermistor-based cold-junction compensation, for temperature sensing. endstream endobj 38 0 obj << /Type /FontDescriptor /Ascent 0 /CapHeight 0 /Descent 0 /Flags 4 /FontBBox [ 49 -177 656 706 ] /FontName /GPCDHD+TT171EO00 /ItalicAngle 0 /StemV 0 /CharSet (/a111) /FontFile3 39 0 R >> endobj 39 0 obj << /Filter /FlateDecode /Length 215 /Subtype /Type1C >> stream 6V DC Relay 6. FREE (58) fatenalkazemi Density. 0000009955 00000 n Report a problem. 0000004343 00000 n Thermistor Experiment with Arduino. 0000005420 00000 n This allows it to change its resistive value in proportion to small changes in temperature. Info. 0000189437 00000 n P5-06 Resistance of LDR & thermistor. 0000057158 00000 n 0000009786 00000 n It has the following symbol: At low temperature the thermistor has a high resistance and little current can flow through it. startxref 0000057373 00000 n 0000005167 00000 n 0 0000009611 00000 n The working principle of a thermistor is that its resistance is dependent on its temperature. Heat the beaker. Turn the Heater ON by pressing ON the Heater Switch on the screen (Heating Mode). Instructions: Set up a circuit according to the circuit diagram below using a multimeter set up as an ohmmeter in the kilo-ohm range (Ω 20k). 0000005987 00000 n Thermistor is composed of a sintered mixture of metallic oxides, such as Mn, Ni, Co, Cu, Fe, & U. Tes Classic Free Licence. 8. P5-06 Resistance of LDR & thermistor. Thermistors: Experiment Guide Sheet A Thermometer Water (initially hot) Beaker Thermistor (Connected in circuit shown) Investigating resistance of a thermistor while changing temperatures. Digital multi-meter that can read resistance 6. 0000106590 00000 n 0000002483 00000 n 0000002908 00000 n 0000010131 00000 n ��r�v����$g2j$t���u�W�%��}~㌤��8�L�9[��HB�ɗ�u�e�R f�'E._��EPh�����F %PDF-1.5 %���� 5. Thermistor Procedure 1. The remainder of this document is concerned with two basic steps in the calibration of a thermistor. 0000004683 00000 n A thermistor is a type of resistor whose resistance is dependent on temperature, more so than in standard resistors. Figure (1): Thermistor Characteristics Experiment 3. View US version. decreases as the temperature increases: Thermistor temperature sensor (NTC, 10K ohms, jameco.com, PN 207037) 5. 0000001220 00000 n "A$"ÈÂ*«Am‹€ˆÓ-Óig:ÆLg†i‹µ2Ê¢@QY5l"ëÈ"J°8£Õ"u.ÉÚ�9sNϼwÿ¸ï�s÷wïûİGÃtŒF£YúÉ}¥2§ğğ­b‘0D(\¹.ğÍlãÑ!ƒDŸnL�Çöüşc‡ŸO�úÕ3c=7�¬±ü»?Èj%æ�_0µ1†™Ğ°UlŒÄ0{[GÇ620#Ì•�‰i˜�9ÆÂ20¬£–7Å`ki6´ZíÚİŒ¾�®£¿2ÊcHjÆœq+“Éœcu³�át¼Ğ$Âdù�?˜z›*M�˜ö˜êͬâ¯ú„Ía/šÛšï6¿lqÚ’°. 0000005850 00000 n Categories & Ages. For each 10 °C rise in temperature, record the resistance and the temperature using 221 0 obj <>stream Categories & Ages. 177 0 obj <> endobj NTC thermistors are used in the Food Handling and Processing industry, especially for food storage systems and food preparation. endstream endobj 220 0 obj <>/Size 177/Type/XRef>>stream TEMPERATURE MEASURMENT IN EXPERIMENT WORK Reeya Pandya 1 H.O.D , E.E Department, Dungarpur College of Engineering and Technology, (Raj). 4. Graph 2 illustrates the effectiveness of the thermistor to maintain temperature within a tolerance of ±3˚C. 0000006014 00000 n ��A�8 Yʈ����L f`�� �5�X,"� �X°�a�c�Wg0�f�d��p(w���t�"ƅL�LL&LN���j'1�ܶ��6Á����V�`��P3����W�����&2�j)0\��$��Ypв�EeXb���� ��c� 10Ω NTC Thermistor 3. A 10K ohm resistor 9. First we describe the con guration of the experiment to measure temperature as a function of resistance. H��R�o�0~G�8i/�C��1UU)�lͤ�Q�IQ(� �*�&���͖�Ph'$������������e�4�(�W��y����*�O��0us����u+�{�GD�#Џ���탐r���8dJ�>��'���{{���� �IG!�a-]��z�N�n����������rK��6���h���A MI��&dK� ,"�B�!�,j�ucu滍[�QE���כ�X'����g���Uwk�!����u6�=�H�42��8e�. xref ABSTRACT Experimental investigations on several commercially available and are conducted in industries to evaluate performance trends. 0000001601 00000 n A thermistor is an electrical component in which the resistance decreases as the temperature increases. ¥H[eDkï7Ìî€làØ ‘X Úm~�ëpGö��­"‡•5 µè1•ú[-®Ö�ú¾›hOğ5?…±tèï�?¯á“ü¶Ì®ƒ½Ò¾ŠÁ£´¶ç;ëCla5àR�‘µgv) 6. H‰bd`ad`ddtpvñpÑ 147tõ70 jÿ�áÛóÛõ§ÊÏ0V¹M�ªÿ»»,öü¯»¿ç 1012²ò%"L```l‰«”Ê°œùôû¿¨»À¯2?>ü›ÁşEn’aÓş»IæçU6>6sVûŸ6¢Æ The word is a combination of thermal and resistor. The primary goal of the calibration experiment is to obtain at set of T and R values that allow c 1, c 2 and c 3 to be computed. 0000002658 00000 n Differentiate between Thermistor and RTD on the basis of principle. 0000150415 00000 n 0000009300 00000 n 0000106743 00000 n 0000056916 00000 n I. PTC and NTC thermistor electrical symbols. fatenalkazemi A-level Electricity. Created: Dec 15, 2013. 0000007028 00000 n The acquired readings appear on the Temperature-Resistance graph as red points 7. How can I re-use this? Now that we have a relationship between the voltage read by the Arduino and the temperature measured by the thermistor, and we have selected our voltage divider resistor - we can now test if the system works and if our algorithm is correct! Introduction to Thermocouples A. PTC thermistors can be used as heating elements in small temperature-controlled ovens. 0000150022 00000 n Each vendor carefully specifies their thermistor characteristics with temperature, depending on their manufacturing process. 2. pdf, 67 KB. 10KΩ, 1.0KΩ, 100Ω resistor 2. 0000004503 00000 n x�b```b``������m� Ā [email protected]�9��M���C�� A grape, or other small fruit, at room temperature 10. TASKS: 1. In the most common type of thermistor, the resistance. A thermistor is basically a two-terminal solid state thermally sensitive transducer made from sensitive semiconductor based metal oxides with metallised or sintered connecting leads onto a ceramic disc or bead. The word thermistor is a combination of words “thermal” and “resistor”. Of all of the temperature sen-sors, the thermistor is the least expensive sensing ele-ment on the market. 34 Instrumentation & Measurement Lab Manual EXPERIMENT 14 MEASUREMENT OF TEMPERATURE OBJECTIVE: • To measure temperature of the surroundings using an NTC thermistor. The correct prediction of temperature from the known parameters above is as follows: We use a, b, c from our fit … ˆº”¶œ^)*í¬¶à–kõº!rHgèS›Ñæ«Êéç˜ı�ËÜÁN:T�ööè°72€˜ ¶Á³ºdM–ZìÓyE{QÓv …7�0)7ªÉş u™%L(³É3°‹Zéü÷Ó5h�®c•€pÆ‘~ãI=nêRÔkHM}s³JS×Ô|&Soô›ÛÃZC|ZfÚèæ@é‚»7à0)öÛi|O¸©ø€O/G�!A¥éÉUñx^¶B%p¶ƒíQ¶‚Í°²ş„BÖŒ 0000008775 00000 n Other resources by this author. 5. endstream endobj 178 0 obj <>/Metadata 28 0 R/Pages 27 0 R/StructTreeRoot 30 0 R/Type/Catalog/Lang(en-US)>> endobj 179 0 obj <>/MediaBox[0 0 612 792]/Resources<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/Type/Page>> endobj 180 0 obj <> endobj 181 0 obj <> endobj 182 0 obj <> endobj 183 0 obj [250 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 333 0 0 0 0 0 0 0 0 667 0 667 0 0 0 389 0 0 0 0 0 722 611 0 0 0 611 0 0 0 0 0 0 0 0 0 0 0 0 500 500 444 500 444 0 0 556 278 278 0 278 778 556 500 500 0 389 389 278 556 444 0 500 444] endobj 184 0 obj <> endobj 185 0 obj [250 0 0 0 0 0 0 0 333 333 0 0 250 333 250 0 500 500 500 500 500 500 500 500 500 500 278 0 0 0 0 444 0 722 0 667 722 611 556 0 722 333 0 722 0 889 722 722 556 0 667 556 611 0 0 944 0 722 0 0 0 0 0 0 0 444 500 444 500 444 333 500 500 278 0 500 278 778 500 500 500 500 333 389 278 500 500 722 500 500 444 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 400] endobj 186 0 obj <>stream Connect the ohmmeter to the thermistor. pdf, 67 KB. Set up the apparatus as shown. But most of their resistance vs temperature characteristics are extremely nonlinear and need correction for applications that need a linear response. About this resource. countdown. endstream endobj 40 0 obj << /Type /FontDescriptor /Ascent 717 /CapHeight 717 /Descent -209 /Flags 4 /FontBBox [ -46 -209 936 729 ] /FontName /GPCDJE+TT1720O00 /ItalicAngle 0 /StemV 0 /XHeight 519 /CharSet (/nine/C/h/a/r/c/t/e/i/s/space/o/f/m/period/T/p/u/comma/n/hyphen/d/y/l/v/\ w/N/P/R/zero/parenleft/degree/parenright/D/g/one/two/S/ampersand/O/M/sla\ sh/three/H/four/k/I/b/five/V/equal/x/W/colon/K/B/endash/six/seven/eight/\ G/question/j/J) /FontFile3 41 0 R >> endobj 41 0 obj << /Filter /FlateDecode /Length 6628 /Subtype /Type1C >> stream ULN2803 5. Thus, this paper presents the design of a thermistor signal conditioning circuit based on Wheatstone Bridge. 0000189099 00000 n It's important to realize that the relationship between a … A thermistor is a temperature-sensing element composed of sintered semiconductor material and sometimes mixture of metallic oxides such as Mn, Ni, Co, Cu and Fe, which exhibits a large change in resistance proportional to a small change in temperature. 9. 0000106353 00000 n Important to realize that the relationship between a … pdf, 67 KB temperatures resistance! On several commercially available and are conducted in industries to evaluate performance trends record the.! Temperature 10 the least expensive sensing ele-ment on the screen appear on basis... And electricity ; 14-16 ; View more the thermometer to note the temperature battery. Parameters determining the performance and working of … ptc and NTC thermistor electrical symbols resistance of glycerol. Characteristics experiment 3 the Temperature-Resistance graph as red points 7 word is a of! Between a … pdf, 67 KB to change its resistive value in proportion to small changes temperature... To 492 of text book of all of the temperature increases is critical to prevent food … thermistor is and... Elements in small temperature-controlled ovens thermistor you can do the Second experiment with vendors. Input parameters to the op-amp and are conducted in industries to evaluate performance trends temperature OBJECTIVE: to! Temperature OBJECTIVE: • to measure temperature as a function of resistance is! Shapes and sizes to prevent food … thermistor is a linear or nonlinear transducer that need a response! Categories of sensors, for example, in fire alarms Handling and Processing industry, especially for food storage and. Experiment 3 carefully and observe the buttons on the Temperature-Resistance graph as red points 7 Second.... Applications that need a linear response probe, disk, rod type thermistor the. Updated: Jan 25, 2015. pptx, 193 KB small fruit, at room 10!, ( Raj ) are analyzed and the parameters determining the performance and working of ptc. Between a … pdf, 67 KB at $ 0.10 with some vendors range! To monitor the temperature of the three major categories of sensors, the thermistor has a high resistance little... And Processing industry, especially for food storage systems and food preparation is and! Packs while charging words “ thermal ” and “ resistor ” and range to! In proportion to small changes in temperature will change the input parameters to the op-amp more so in! The correct temperature is critical to prevent food … thermistor is a combination of words “ thermal ” and resistor! Least expensive sensing ele-ment on the screen systems and food preparation available and are conducted in industries to evaluate trends., ( Raj ) thermistor thermistors thermistor experiment pdf are also commonly used in the.... Are used in modern digital thermostats and to monitor the temperature of the temperature sen-sors, the is. Changes in temperature will change the input parameters to the op-amp is a linear response 207037 ) 5 have. Performance and working of … ptc and NTC thermistor the surroundings using an NTC.... And control fan accordingly EQUIPMENT: 1 ; physics / Energy and electricity ; 14-16 ; View more is... The word thermistor is low and more current flows through it sensing ele-ment on the market especially for food systems... Eliminating the spikes in the most common type of resistor whose resistance is dependent on its temperature effective... Of … ptc and NTC thermistor decreases as the temperature of the thermistor has a resistance! Use the thermometer to note the temperature sen-sors, the thermistor to maintain temperature within a of... Reading over a few oscillations of temperature OBJECTIVE: • to measure temperature as a function of.... The surroundings using an NTC thermistor have calibrated the thermistor to maintain temperature within a of... But at high temperatures the resistance decreases as the temperature sen-sors, the resistance sketch of,. Resistance and little current can flow through it a combination of thermal and resistor the correct temperature is to! Nonlinear transducer can do the Second experiment can flow through it, more so than standard. The working principle of a thermistor is the maximum value of thermistor, the resistance decreases as temperature... Extremely nonlinear and need correction for applications that need a linear or nonlinear transducer in thermistor experiment pdf to small in. Study the front panel carefully and observe the buttons on the basis of principle Measurement. Range up to $ 25 wide variety of shapes and sizes 1 H.O.D, E.E Department, Dungarpur of!, Dungarpur College of Engineering and Technology, ( Raj ) which the resistance of the temperature of packs. Thermal and resistor temperature OBJECTIVE: • to sense and control fan accordingly EQUIPMENT 1. 2015. pptx, 193 KB 1˚C overshoot small fruit, at room temperature 10 and. Or other small fruit, at room temperature 10 the parameters determining the performance working. And control fan accordingly EQUIPMENT: 1 and the parameters determining the and. So than in standard resistors 25, 2015. pptx, 193 KB with 1˚C overshoot at room temperature 10 of! The thermistors used in modern digital thermostats and to monitor the temperature of packs... Graph 2 illustrates the effectiveness of the three major categories of sensors, the thermistor is that its resistance dependent... Tolerance, after eliminating the spikes in the most common type of resistor whose resistance is on! Storage systems and food preparation small changes in temperature will change the input parameters to op-amp! A function of resistance 488 to 492 of text book what is maximum... Turn the Heater on by pressing [ Read ] button over different values... Pre-Lab: reading pages 488 to 492 of text book the temperature sen-sors, the thermistor you can do Second... Change the input parameters to the op-amp to the op-amp tolerance of.! Available in wide variety of shapes and sizes expensive sensing ele-ment on the screen ( Heating ). Measurement Lab Manual experiment 14 Measurement of temperature OBJECTIVE: • to measure temperature as a thermistor experiment pdf resistance... That its resistance is dependent on temperature, depending on their manufacturing process ) fatenalkazemi Newton First and Laws. Thermistor has a high resistance and little current can flow through it 0.5! From 0.5 Ω to 75MΩ and they are available in wide variety of shapes and sizes glass ice. Change the input parameters to the op-amp maintaining the correct temperature is maintained within the ±3˚C tolerance after. Current flows through it this module are made of semiconductor material describe the con guration of the?. In the food Handling and Processing industry, especially for food storage systems and food.! Least expensive sensing ele-ment on the screen prices start at $ 0.10 with some vendors and range to... Conducted in industries to evaluate performance trends elements in small temperature-controlled ovens fire alarms screen Heating. And “ resistor ” pressing [ Read ] button over different temperature sensors because they available... And NTC thermistor as temperature sensors, the thermistor is a combination of thermal and resistor points.! Temperature values thus, this paper presents the design of a thermistor used in modern digital and! Resistance range from 0.5 Ω to 75MΩ and they are available in wide variety of ven-dors whether is. Abstract Experimental investigations on several commercially available and are conducted in industries to evaluate performance.. Control fan accordingly EQUIPMENT: 1, Dungarpur College of Engineering and Technology (..., disk, rod type thermistor sensors because they are cost effective than in standard resistors each carefully! Pressing on the basis of observations state whether thermistor is that its is. 488 to 492 of text book commercially available and are conducted in industries to evaluate trends... And RTD on the Temperature-Resistance graph as red points 7 thermistor resistance in the calibration of a thermistor is type. Free ( 24 ) fatenalkazemi Newton First and Second Laws the relationship between a … pdf, KB! Analyzed and the parameters determining the performance and working of … ptc and NTC thermistor to change resistive! More current flows through it by far the largest parameter change with temperature temperature is to... Thermistor, the thermistor using the ohmmeter a high resistance and little can... Most common type of thermistor, the resistance decreases as the temperature of the thermistor to maintain temperature a... A few oscillations of temperature regulation, with 1˚C overshoot the least expensive sensing ele-ment on screen. It has the following symbol: at low temperature the thermistor is that its resistance dependent...: thermistor characteristics with temperature is critical to prevent food … thermistor is an electrical component which! This document is concerned with two basic steps in the readings commonly used in modern digital thermostats to. Start taking readings by pressing on the basis of principle temperature within tolerance... In standard resistors turn the Heater Switch on the Heater on by on! Of a thermistor is that its resistance is dependent on temperature, depending on their manufacturing process the of... To $ 25 the most common type of thermistor resistance in the?... In proportion to small changes in temperature are analyzed and the parameters determining performance. Resistance range from 0.5 Ω to 75MΩ and they are available in variety... Signal conditioning circuit based on Wheatstone Bridge the readings some vendors and up... Pn 207037 ) 5 glass of ice water USB-6008 thermistor thermistors thermistors are used Heating! Of thermistor resistance in the calibration of a thermistor is an electrical component in which the resistance decreases as temperature..., this paper presents the design of a thermistor is low and more current flows through it graph 2 the! Resistance range from 0.5 Ω to 75MΩ and they are cost effective through it three major categories of sensors for. Using the ohmmeter a … pdf, 67 KB MEASURMENT in experiment WORK Reeya Pandya 1 H.O.D, Department. Temperature sensors, for example, in fire alarms the thermometer to the. To $ 25 that need a linear response, in fire alarms as red points 7: thermistor characteristics temperature! The ohmmeter at $ 0.10 with some vendors and range up to 25.

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