Features 1、Scope of Application: This optical power meter supports 7 wavelengths, 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm. 2、2.5mm Standard Interface: Equipped with 2.5mm standard interface, this optical power meter is commonly used for SC, FC, ST connectors. 3、Accurate Performance: This optical power meter is well made with accurate measurement and low error. Use it with confidence! 4、Wide Measurement Range: This optical tester can provide from ‑70 to 10dB optical power measurement range. 5、ABS Material: Using excellent ABS material, the optical power meter possesses impact resistance, scratch resistance. Specification Item Type: Optical Power Meter Material: ABS Test Accuracy: ±0.2dB Test Range: (-70) to (+10)dB Working Temperature: -10℃ to +60℃ Battery: 2 x AA Battery (Shipped Without Battery) Package List 1 x Optical Power Meter 1 x SC Connector