Gigahertz-Optik adds a Wi-Fi interface to its BTS256-E light meter to enable complete wireless remote control of all its functions. The meter measures 15 different quantities including photopic and scotopic illuminance, S/P ratio, EVE equivalent visual efficiency factor, color coordinates, CT, CRI, color purity, deltaUV, and spectral irradiance. Its Bi-Technology sensor includes both a precision photometric photodiode and diode array spectrometer. Any spectral mismatch error of the photopic sensor is compensated on-line using the diode array's measured spectral data. A built-in electro-optical shutter for dark-signal pixel offset compensation optimizes signal-to-noise ratio to increase the linear dynamic range of the C-MOS diode array detector. Other features include time-delay measurement, display dimmer, two datalogger modes, and measurement mapping function.
Light Meter Provides Wireless Remote Control