Illuminance meter TunnelTech 602

The TunnelTech 602 Illuminance photometer monitors the average illuminance within a tunnel in accordance with Commission Internationale de l´Eclairage, (C.I.E.), publication 88, 1990 recommendations, the photometer monitors the average illuminance over a range of 0 – 20,000 lux. The detector is a metal/glass encased silicon diode photocell which is filtered to give a response that mimics the performance of the human eye. The detector is perfectly linear within its measuring range and has an instantaneous response to changing light levels. Key Features Compliant with Commission Internationale de l´Eclairage, (C.I.E.), publication 88, 1990 Measurement of tunnel illuminance – 0 – 20,000 lux Calibrated using standards traceable to UK National Physical Laboratory Accuracy +/-3% Metal/glass encased Silicon photodiode, Vl filtered to human spectral response Rugged Aluminium housing to IP65