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The Stress Thermometer SC911 lets you see changes in your hand temperature, which is a reflection of your blood flow and a measure of your stress response. Also known as the digital biofeedback thermometer. Learn More

The BF199 liquid filled glass thermometer sits on a scaled cardboard backing. Not intended to be an precise measurement, only to show general trend information. Learn More

Temperature indicator, credit card size in plastic. Liquid crystal square turns color as it is warmed by the finger. A color grid on the card compares the crystals color to Stressed, Tense, Normal or Calm. 20 cards per package. Learn More

GP4 System Package includes all the sensors you need to get started. This is a low cost entry level 4 channel biofeedback system. The GP4 4 channel biofeedback system is an excellent way to add biofeedback to your practice or research and can also be used at home for learning more about your own physiology. The low start up cost makes the system attractive to budget conscious individuals. Learn More

Temperature indicator, credit card size in durable plastic. Liquid crystal square turns color as it is warmed by the finger. A color grid on the card compares the crystals color to Stressed, Tense, Normal or Calm. Ideal for referral or promotion. Learn More