cabling engineers. Specifications: Material: ABS Package Weight: 460g / 16.23oz Package Size: 23 * 16.5 * 4.5cm / 9.06 * 6.50 * 1.77in Emitter Parameters & Functions: LCD Display: 128*64 dot-matrix with backlight Power Supply: 3.7v 1400mAh lithium battery Auto-off Time: 15min/30min/60min/OFF Voltage Protection: DC48V, 5mA Max. Working Current: <150mA Size: 125 * 70 * 32mm / 4.92 * 2.76 * 1.26in WIREMAP TEST: Cable Type: CAT5, CAT6, (STP & UTP) Test with Switch Directly: Yes Max. Range: 600m LENGTH TEST: Cable Type: CAT5, CAT6, (STP & UTP) Test Range: 2.5~500m Accuracy: 1.6m Breakage Location: Yes SCAN TEST: Cable Type: CAT5, CAT6,(STP & UTP) Max. Signal Voltage: 5V+/-1.0V p-p(audio file) Frequency: 455KHz Dual mode to scan cable：AC filter & Non AC filter Max. Range: 600m (RJ45)/ 400m(RJ11) POE TEST: Test Range: DC5~60V standard / non-standard PoE switch Power supply core/Jumper method：End jumper/middle jumper/8-pin power supply/unknown PSE Type: Standard: IEEE 802.3af/at; Non standard Receiver Parameters: Sensitivity Adjustable: Yes NCV：AC 70V~1000V 50/60Hz Lamp: Yes Wiremap：Yes Battery Type: 3.7v 1400mAh lithium battery Low Battery Warning: 3.5v+/-0.1v Auto-off Time: 15min/30min/60min/OFF Standby current：<35mA Max. Working Current: <280mA Charging method：DC 5V 1A Type-C Operating temperature/humidity：32~122F (0~50C）/90% non-condensing Size: 198* 50 * 28mm / 7.80 * 1.97 * 1.10in Packing List: 1 * Emitter 1 * Receiver 1 * Earphone 1 * Charging line 3 * Cable adaptors 1 * Toolkit 1 * Manual(English)