Sensaphone provides NIST traceable calibration temperature sensors to help facilities responsible for storing medical specimens, reagents, vaccines, and other valuable cold inventory. These certified sensors help maintain a temperature audit trail and all equipment that Sensaphone uses to validate NIST traceable certificates is also NIST traceable. The portfolio of sensors with NIST Traceable Calibration Certificates includes: the 2.8K Weatherproof Temperature Sensor, the 2.8K Temperature Sensor and Ultra-Low Temperature Sensor in Glycol-Filled Vial, the 2.8K Temperature Sensor in Glass Bead-Filled Vial, the WSG Wireless Temperature Sensor with External Probe, and the WSG Wireless Temperature Sensor in Buffered Bottle.