I needed an indicator to turn on the engine cooling fan IZH-Planet-5
Temperature sensor that can be adjusted to the response temperature. I took the temperature sensor from the GAZ 21 TM-101 as a basis. it is he in the photo. I disassembled it, removed the element, cut off the excess, left only the tube, made a contact pad and drilled a hole for adjustment. I inserted the element back and filled it with epoxy resin. The result was an adjustable temperature sensor. Now you can fasten it to the engine and, depending on the installation location, adjust the response threshold. The sensor circuit in Figure 3 and what happened in photo 2. The control threshold (bolt 4 in Fig. 3) turned out from 90 g to 350 g
