Disc-shape MnO+0.4CuO samples were prepared by standard ceramic techniques with firing temperature of 500 oC and 900 oC, respectively. The physical property relation of resistance (R) vs temperature (T) corresponds to R = 7.0544e-0.0218T. The prepared samples are very sensitive to temperature response and can be used as temperature sensor application. A self constructed temperature reading system interfacing with a computer and a prepared sample temperature sensor can measure temperature ranging from 26 oC to 100 oC.