After thorough examination of the Agricultural Meteorological Measuring System (AgMMS) of the Japanese EKO Instruments Trading Co., its application software is developed and expanded to incorporated the measurement of atmospheric pressure and the function of processing is extended.The revised system may now print out automatically weather reports inconformity with the regulations laid down in GD-01-Ⅱ published by theState Weather Bureau. Thus the improved system constitutes a fully auto-matic wired telemetric device for surface observation with such functionsas element sensing, parameters collection, data processing and weather report compiling and printing.