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Operating environment conditions: -40~70℃, relative humidity not more than 85%
Temperature effect: no more than 0.4%/10°C (the operating temperature deviates from 20±5°C)
Main parts material: Connector: copper alloy HPb59-1
Spring Tube: Phosphor Bronze QSn4-0.3
Movement: copper alloy
Shell: steel plate 0.8F