1. Meet the technical requirements of JJF1407-2013 WBGT index meter thermometer calibration specification. 2. It solves the problem of lack of high-precision air bath in temperature measurement, and is an air bath box with top-level uniformity index. 3. The latest breakthrough in uniformity index: better than 0.2℃, automatically record the temperature change curve product details Typical Use: Calibration of a digital hygrometer in a metrology department Multi-channel calibration of fiber optic thermometer in a university Calibration of cold chain recorder for a Beijing instrument company Calibration of Wireless Sterilization Verifier for an Instrument Company in Shenzhen Skills Requirement: 1. Brand: Drick 2. Temperature range: -40℃ ～100 ℃ 3. Temperature fluctuation: ±0.03℃/10min 4. Temperature uniformity: 0.2℃ (20℃) 5. Lighting source: LED cold light source 6. Studio size: 320L 7. Medium: 4002 conductive cold liquid