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dity : 60 ~ 70%Air Pressure : 86 ~ 106Kpa10. Every Mic. has installed FET., The FET. is easy broken by strong heat and static electricity, so when you working on, pls be attention that :Remend using constant branding iron in 15 ~ 30W, and in temperature range 280 ~ 320176。C.Soldering time not over 3 seconds.Don’t stay any hole or dust when soldering.To avoid the Mic. be broken by static electricity, the people and working station should install preventstatic electricity equipment.Pls using the easy dissipate heat material (Such as Aluminum…) to be the soldering plate. The appearance as follow : A good package will help Mic. on using normal transportation. Pls pay more attention to preventhumid, shake, sunlight and heavy press.11. TEMPERATURE CONDITONS The full packed Mic. should be store at warehouse in –20 ~ 70176。C, and the relative humidity not bigger than 90%. The warehouse must keep constant temperature, without acid or any other poisonous gas,and not caused any influence from strong magnetic field. Operating temperature: 20℃~+70℃ MODEL NO: DTA6050P5UNIT: mm