Indication instruments ltd., is an iso/ts 16949:2002 certified company is the leading manufacturer & oem supplier of instruments, clusters, sensors, switches, speedocable & display units to over 60 oems of to various types of buses & trucks, farm equipment, construction equipment, marine applications, compressors, generators, passengers cars & two wheelers. High temperature buzzer is an uniquely designed electronic measuring instrument. This buzzer has some outstanding features. They are: