SPRTs & TCs (Secondary)

In addition to our 670 family of Primary SPRTs we have the 909 Family of working standards. The quartz sheath 909Q is recommended. Our Model 1600 Platinum / Platinum Rhodium Standard Thermocouple is available as Type R or Type S these thermocouples are housed in a 99.7% recrystallized alumina sheath, 300 or 600 mm long and can be used to 1600°C


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