Water proofed temperature sensor

Step 8 Extend wires from the other end

At the other end of the tube, I soldered the enamelled wires to three wires peeled off a flat cable, insulated the joins using hot melt glue and applied a length of heat shrink tubing over it for mechanical strength.

Paper clips bent into a "V" make great plugs to go into the sockets of a multimeter. Three AA cells in a four cell holder were used to power this sensor.