The TL-510 Mini Handheld Optical Power Meter is a precision, durable, and portable test instrument designed for the installation, operation, and maintenance of fiber optic networks. Available in two models with different power detection ranges to suit various applications. Thorlabs' expanding line of optical power and energy meters includes a large selection of sensor heads, single- and dual-channel power and energy meter consoles, power and energy meter interfaces, a wireless power meter with a built-in photodiode sensor, and a fiber optic power meter designed for. Model Introductions TL-510A: Measurement range: -70~+10dBm,calibrated wavelength:850nm、1300nm、1310nm、1490nm、 1550nm、1625nm TL-510B: Measurement range: -50~+26dBm,calibrated wavelength:850nm、1300nm、1310nm、1490nm、 1550nm、1625nm 2. It features ingenious appearance, wide range of power. For the 2024 holiday season, eligible items purchased between November 1 and December 31, 2024 can be returned until January 31, 2025. [WIDE MEASUREMENT RANGE] Covering 850nm, 1300nm, 1310nm, 1490nm, 1550nm, and 1625nm, providing a comprehensive optical power measurement range. Wavelength : Display the wavelength, such as 1625nm.