... -199.0%T, 0-1.999A, 0-1999C Photometric accuracy: ±1.0%T Photometric repeatability: 0.5%T Spectral bandwidth: ... Measuring optical path: 100 mm Stray light: ≤ 1.0%T (340 nm)Stability: ≤ 0.004 A/h( ... 500 nm preheat 1 hour)Display modes: 4 LCD Basic Measurement: T,A,C Data output (print ... protection and monitoring, and other fields.Features:1.RS232C interface is optional.2.100mm colorimetric stand ...