1、EXCELLENT PERFORMANCE: Handheld mini fiber optic tester, possess stable light source, high stability output power, with 3 modulation frequencies 2、RUGGED PROTECTING: Fiber optic meter feature a black soft rubber protective layer to prevent damage from drops or collisions, ensuring durability and longevity 3、VERSATILE CONNECTOR: Fiber light optic meter equipped with a universal 2.5mm interface, including SC connectors also support FC and ST, making it ideal for telecom and cable TV maintenance testing 4、HIGH ACCURACY MEASUREMENT: Fiber optic power meter detect adopt for InGaAs detector type with a wavelength response range of 850‑1650nm, measurement range of ‑70 to +10dbm, and accuracy of ±2dB for accurate readings 5、RECHARGEABLE AND PORTABLE: Fiber optic cable tester is powered by a lithium battery for convenient on the go use, with a temperature range of ‑10 to +60℃ and frequency recognition of 270, 330, 1k, 2kHz for versatile applications Item Type: Fiber Optic Meter Detector Type: For InGaAS Wavelength Range: 850-1650nm Measurement Range: -70 to +10dBm Resolution: 0.01dB Accuracy: ±2dB Connector: Universal FC, SC, ST Battery Type: 1 x Lithium battery(800mAh) Operating Temperature: -10 to +60℃ Frequency Identification: 270, 330, 1k, 2kHz 1 x Fiber Optic Power Meter 1 x USB Cable