This stress meter kit from Arexx is available as a kit format, and is an excellent product which provides great fun even after it is assembled.
Noise via family members or colleagues can increase stress levels, but this kit allows it to be measured, at home or in the office. The stress meter light, which normally flashes gently, begins to flash more quickly when noise increases, advising you that it is time to relax. Once the stress situation is over, the light returns to flashing gently. If it remains quiet for a prolonged period, the stress meter switches to sleep mode.