Working and Standards Probes(保准探头）|深圳华清仪器仪表有限公司国内总代理，销售专线：13554848522 张运华 QQ:394688981
Temperature probes, famous for their non drift and their reliability. SPRT (for laboratory standard), PRT (for working standard) are used at lowtemperature ranges: from -80°C to 450°C Thermocouples, type S or R, are mainly used for hugh temperature up to 1,200°C
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