THERMISTER-10K3. 10K Ohms @25C Thermistor to voltage interface board.


The THERMISTER-10K3 board is designed to perform accurate  thermistor temperature readings. If used properly, it will eliminate the need for expensive temperature meters, which would otherwise be needed to carry out the same tasks.


THERMISTER-10K3  is easy to install, setup and operate. If you want to do professional temperature measurement related functions, THERMISTER-10K3 offers the features you need. Mounted easily via four 0.125" mounting holes.


The board is also designed to attenuate, filter and regulate 11-24V DC or AC to on-board stable 9V DC. 


For our 110V or 220V to 12VAC Power down transformer (Class 2 Type Transformers EID-BP series) click Here



Drawing information




1. LED Power on indicator

2. Voltage Reference Adjustment



Shown above connected to our glass probe contains 10K-Ohms thermistor (Option)



Temperature Probes


For our big selection of temperature probes and electrodes click hear


We can custom the probe to fit your needs. Choose from SS, glass or plastic temperature electrodes (probes).




SENSER - SS Temperature Sensor (TM10) With 10K Thermistor



Calculating the thermistor temperature:


The thermistor resistance (R) should be obtained from the following formula:


Where V_out is the output voltage of the board;


R = 10K * { (2V / Vout) -1}


After finding the resistance (R) of the thermistor, all that's left to do is to plug it into the Steinhart-Hart thermistor equation (see below) and get the current temperature.


The Steinhart-Hart thermistor equation is derived from mathematical curve-fitting techniques and examination of the resistance versus temperature characteristics of thermistor devices.


Where T is the temperature in Kelvin (note: 0C = 273.15K), and A, B, and C are constant factors for the thermistor that is being molded.


Steinhart-Hart Equation:


T = 1 / {A + B[ln(R)] + C[ln(R)]^3}

A = 0.001129148 

B = 0.000234125 

C = 8.76741E-08

Please be advised, the coefficients A, B, and C are constant factors of the individual thermistor. The above coefficients are given for 10K @ 25C thermistor from Betatherm , Inc. MA, USA.


Finally, to convert the result from Kelvin to degree Centigrade or Fahrenheit use the following formulas:


C = K 273.15


F = C * 1.8 + 32





  • Built-in power LED indicator.  

  • Adjustable reference voltage via multi-turn trimmer.

  • Power switch option.

  • Also, designed to operate from 12VDC car battery.



  • Max Output voltage                  +2.5V

  • PCB material                            FR4

  • Output Voltage                        Reference to ground

  • Max power consumption            0.1W

  • Storage temperature                40 - 70   [F]

  • Operating temperature              32 - 140 [F] (0 to 60C) @ 95% RH

  • Power source                          11 to 24V AC or DC

  • Power indicator                        LED Green or Red

  • Manufactured                          100% in USA




* Prices, P#, SKU# and colors are subject to change without notice. 

   Additional 10% discount with student ID, USA only.




THERMISTER-10K3 10K Ohms Thermistor temperature interface board. build-in power source. Power via 11-24VDC. 



SENSER-TM10 General purpose SS sensor with 10K thermistor, with 3' cable









THERMISTER-10K3 10K Ohms Thermistor temperature interface board. build-in power source. Power via 11-24VDC. With 6" wires (6).



Power switch addition.