Trimpot code reader Type the 3 digits printed on a trimpot or preset
10 kΩ
= 10,000 Ω
First two digits 10, then 3 zeros: 10 000 Ω.
Trimpots and presets show their value as 3 digits: the first two are the number and the third is how many zeros to add, in ohms. So 103 is 10,000 Ω (10K) and 105 is 1,000,000 Ω (1M). Rotary pots print the value directly, like B10K, where B means linear.
About Slide & Digital Potentiometer Modules
Ready-made potentiometer boards: a 10K slide potentiometer module and X9C103S / X9C104S digital potentiometer modules that a microcontroller like Arduino or ESP32 can set in steps.


