Features: Dual scan modes selectable: AC filter & Non AC filter. Detect AC voltage presence (70V-1000V). Test physical status for STP, UTP lan cable. Measure cable length accurately , the is 500m. Hub for locating network port by the flashing port on Hub / Switch. Available to 10M/100M/1000M Hub/ switch. PoE testing : identify which pins are providing and detect how much voltage, identify which the type of PSE (at/ standard). Quallity verify the crimping crystal. 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 : 3.7v 1400mAh Auto-off : 15min/30min/60min/OFF Voltage : 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. : 600m LENGTH TEST: Cable Type: CAT5, CAT6, (STP & UTP) Test : 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. : 600m (RJ45)/ 400m(RJ11) POE TEST: Test : DC5~60V standard / non-standard PoE switch core/Jumper method：End jumper/middle jumper/8-pin /unknown PSE Type: Standard: IEEE 802.3af/at; Non standard Parameters: Sensitivity Adjustable: Yes NCV：AC 70V~1000V 50/60Hz : Yes Wiremap：Yes Type: 3.7v 1400mAh Low Warning: 3.5v+/-0.1v Auto-off : 15min/30min/60min/OFF Standby current：<35mA Max. Working Current: <280mA method： 5V 1A Type-C Operating /humidity：32~122°F (0~50°C）/90% non-condensing Size: 198* 50 * 28mm / 7.80 * 1.97 * 1.10in Packing List: 1 * Emitter 1 * 1 * Earphone 1 * line 3 * Cable adaptors 1 * Toolkit 1 * Manual(English)