Network cable sequence detection: RJ45 connector Power meter connector: 2.5mm universal FC Battery type: Rechargeable: 800mAh Wavelength response range: 850-1650Hz Operating temperature: -10C to +60C Measurement range: -70C to +50C/-50C to +26C Accuracy: 0.2dB Resolution: 0.01dB Frequency recognition: 270/330/1kHz/2kHz Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color: Red Material: ABS Package Contents: 1 x Optical Power Meter(built-in rechargeable battery) 1 x Wire Tracker(without 2 x AAA batteries,You need to prepare yourself) 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.