Newport Multi-Function Optical Meter Model Number: 2835-C High performance optical meter for DC, peak to peak, and pulse measurements. Single or dual channel operation. Channels may be displayed individually or simultaneously. Power sensitivity ranges from 100 fW - 2 W (depending on sensor) over a wavelength range of 0.19–1.8 μm using Newport 818 series low-power, semiconductor detectors. High power measurements from 10 mW to 300 W over a wavelength range of 0.19 to 11 um are possible using Newport 818T series thermopile detectors Includes both RS-232C and IEEE-488 interfaces. System calibration is user-adjustable, with wavelength settings in 1 nm increments. No detectors or calibration pods are included.