R-tek Digital Lux Light Meter LCR Meter

Illuminance range - 0-199999 LUX -19999 FC (foot candle) Illuminance accuracy - +4% (Calibrated by a standard flat lamp or standard colour temperature of 2856k) - (6%+5Lux) other visible light sources Illuminance resolution - - LUX: 200, 1 FC LUX: ?200, 1 LUX FC: <20, 0.01 FC FC: 200, 0.1 FC FC: >200, 1 FC Deviation feature of cosine Angle: 30°, ±2% 60°, +6% 80°, +25% Operation temperature/humidity: 0-40°C (<90%RH Non- Condensing) Storage temperature/humidity: -20-60°C(<75%RH) Power: 9V battery(6F22) Sampling rate: 2 times/s Spectral range: 320~730nm Sensor type: Silicon photocell