Model JO415 DC microammeter is suitable for students to measure weak current and slimelectric potenial in laboratory of middle school and polytechnic school.
JO415型直流安培计
中学、中专等学校实验室，可测微弱电势。
Model JO415 DC microammeter is suitable for students to measure weak current and slimelectric potenial in laboratory of middle school and polytechnic school.
JO415型直流安培计中学、中专等学校实验室，可测微弱电势。
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