Comprehensive Testing Capability: Designed for PON network construction and maintenance, this fiber optic tester is perfect for ONT/OLT applications. It measures at wavelengths of 1310, 1490, and 1550 nm, ensuring broad compatibility with various optical fibers. User-Friendly Design: The features an intuitive interface and a durable, compact design that makes it easy to handle in field operations. It's engineered for reliability and precision, providing accurate results for network testing, troubleshooting, and maintenance. Display: Color LCD screen Data storage: 10 records Power supply mode: 9V dry battery(not included in shipment) Battery life: 0.5dB Working temperature: -10 -+50 Storage temperature: -40 -+70 Relative humidity: 0-90% without condensation Due to different batches, there may be differences in product appearance and printed text, which will not affect use Colour:orange Material:ABS Specifications:AUA-330U Package Contents: 1 x Fiber Optic Tester kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.