1. In rats, these signals frequently exceed 1 millivolt in amplitude. 2. The voltage is usually around 1 to 9 millivolts . 3. Potassium equilibrium potentials of around " 80 millivolts ( inside negative ) are common. 4. For Potassium at normal body temperature one may calculate the equilibrium potential in millivolts as: 5. Anything beyond a few millivolts is significant, and potentials of 200 mV are common. 6. Typical input voltages are 5 V or 12 V and typical output readings are in millivolts . 7. The output of a thermopile is usually in the range of tens or hundreds of millivolts . 8. The relay armature was initially set to complete the detonating circuit at 25 to 40 millivolts . 9. But it still was only 15 to 25 millivolts short of requiring a shutdown of that unit. 10. It generates 750 mV, which is enough to operate a standard " millivolt gas valve ".