SPRTs • PRTs • Readouts • Thermocouples Featured Products Quartz-Sheath SPRT Learn More AM1960/1950 Quartz-sheath Standard Platinum Resistance Thermometers Metal-Sheath SPRT Learn More AM1880, the world’s best Metal-Sheath Standard Platinum Resistance Thermometers Secondary SPRT Learn more AM1762/1760, reliable secondary standard SPRTs