The Orico Multi-functional Wire Tracer is the perfect tool for troubleshooting your cable management and network system. It features digital signal tracing as well as PoE testing and polarity detection. Thanks to its long-range distance it can detect signals of up to 300m. This also allows it to lock and identify the matched cable accurately and fast. A nonstandard PoE test is also available with maximum voltage support of up to 48V. The gold-plated probe on the receiver ensures a strong and stable connection while the durable ABS material keeps the device’s internals protected. Each device uses AAA batteries and will shut off automatically after 10 minutes of no use to extend the battery life.