Digital radiometers/photometers are designed to provide accurate readouts for UV irradiance, visible illuminance and luminance light readings. The readout units are specially calibrated for use with a full line of interchangeable sensor detectors. Manufacturer says that when equipped with a sensor detector, the readout unit can satisfy nearly any laboratory or life science application, including fluorescent inspection and UV dosing. Single-wavelength sensor detectors are available in both standard range and extended range. The standard range provides UV readings from microwatts to milliwatts and the extended range provides measurements from millwatts to watts. All sensors are suitable for checking the intensities of fluorescent UV tubes and HID UV bulbs.