For professionals in the fiber optics industry, the Fiber Optic Power Meter from Jonard Tools stands out with its exceptional range and precision. Capable of measuring wavelengths from 800 to 1650 nm, this device utilizes an InGaAs detector to ensure accurate readings across various applications, whether you need to determine absolute or relative power. Its durable design features a dust-proof button and a shatter-resistant sleeve, ensuring longevity even in demanding environments. The integrated LED screen enhances usability in low-light conditions, while the device's ability to be manually calibrated adds an extra layer of flexibility for precise measurements. With an impressive operating time of over 130 hours on just three AA batteries, this tool is configured for efficiency and ease of use in the field. The Jonard Fiber Optic Power Meter is a reliable choice for anyone needing high-performance tools in optical testing, delivering accuracy with a resolution of 0.01 dB and multiple preset calibrated wavelengths.