| 摘要 |
PURPOSE:To keep the servicable state for long years, by enclosing a lithium battery, whose life is long when it is not used, in a screwed battery case and the like. CONSTITUTION:A temperature sensitive part 1 comprises a thermistor and an aluminum cap, which protects the thermistor, and forms a unitary body together with the tip of a main-body case 4. A circuit part 2 comprises a special IC, a circuit board 2b, and externally attached parts. A power source part is constituted by a space formed by the main-body case 4 and a battery cap 7, battery terminals 8a and 8b, a battery 9, and a tightening screw 10. As the battery 9, a lithium battery, whose life is long when it is not used, is used. The value of the detected temperature is displayed on a liquid crystal display 3. |
