The PTR HARTMANN B12L with Encoding switch is an electronic part designed to measure the resistance of both electrical and non-electrical components. This part is designed for use in a wide variety of electronic components, including resistors, capacitors, diodes, transistors, relays, and integrated circuits. It is suitable for both single- and dual-pole configurations. This part is built with a 255-step continious-pulse-width-modulation switch, which provides accurate and repeatable readings. It also includes a built-in interface, so users can easily connect it to other electronic components. Additionally, it is designed to be small and lightweight, allowing it to fit into tight spaces. The rated operating temperature range for this part is -25°C to 85°C.