To surely recognize set values for speed, temperature, weight, etc., without overlooking them by easily performing notification of the set positions of the pointers of measuring instruments such as a speedometer, a thermometer, and a gravimeter, preventing their cost increase with simple formation.

A pointer detection means 2 is provided for detecting the position of the pointer 1 of a measuring instrument. Setting for a pointer 1 detection position in the detection means 2 is made changeable. A notifying means 3 is provided for performing notification on the basis of a detection result by the detection means 2.