Specification Brand : Eujgoov BulletPoint1 : PORTABLE POWER METER: Handheld power meter with stable light source and high stability output power, featuring 3 modulation frequencies, useful and practical BulletPoint2 : UNIVERSAL INTERFACE: Optical power meter equipped with a 2.5mm interface, including SC connectors, ideal for telecom and cable TV maintenance and testing BulletPoint3 : SHOCKPROOF DESIGN: Fiber optic tester external protective layer is made of black soft rubber shell effectively prevent damage from drops or collisions BulletPoint4 : ACCURATE DETECTOR: Power meter with for InGaAs detector type, wavelength response range of 850‑1650nm, measuring range of ‑70 to +10dbm, accuracy of ±2dB BulletPoint5 : VERSATILE USAGE: Light power meter feature universal connectors FC, SC, ST, 3 x AAA batteries(not included), operating temperature ‑10 to +60℃, and frequency recognition of 270, 330, 1k, 2kHz IncludedComponents : No ItemName : 850~1650nm Optical Power Tester High Accuracy Optical Power Meter without Light Function Tester ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 13 centimeters ItemPackageDimensions_Width : 9 centimeters ItemTypeKeyword : network-and-cable-testers Manufacturer : Eujgoov MeasurementAccuracy : 0.1mm ModelName : Eujgoovfh90uymbne ModelNumber : Eujgoovfh90uymbne NumberOfItems : 1 PartNumber : Eujgoovfh90uymbne ProductDescription : Specification: Item Type: Optical Power Meter Detector Type: For InGaAs Wavelength Range: 850-1650nm Measurement Range: -70 to +10dbm Resolution: 0.01dB Accuracy: ±2dB Connector: Universal connector FC, SC, ST Battery Type: 3 x AAA batteries(not included) Operating Temperature: -10 to +60℃ Frequency Identification: 270, 330, 1k, 2kHz