Product features：
1. Bring RJ45、RJ11ports and alligator clip adapter cable with RJ11port；
2. It has anti-jamming and can adjust high sensitivity function；
3. In noisy places can be headphones work
4. Use safety (probe can direct contact with bare metal wires)

Product functions：
1. Test the connect status of STP/UTP 5E /6E cable, telephone line, BNC cable, USB signal line； 2. Fond the required line in numerous lines;
3. Detect circuit DC level and judge positive and negative
4. Ring signal detection。

Applicable products and port：
1.STP/UTP、CAT5E/6E network cable、RJ45 port；
2.Telephone line, RJ11 port； 3.Coaxial line； 4. Other metal lines
Common areas：
1. Telecommunications network cabling engineering and daily network maintenance； 2. Computer, telephone, TV network line project； 3. Other metal wire line engineering and maintenance；

Technical parameters：
Model：SML-868TS
Display ：LED indicator
Power ：2pce 9V DC battery
Current： Emitter current≤20mA；
Receiver current≤50mA
Signal transmission distance: ≥3000meters
Operation temperature ：-10°C——+60°C
Operation humidity：20%-70%
Main material ：ABS
Appearance dimension： Emitter：130X60X28mm Receiver: 195*38*28mm
Packed dimension：265*165*38mm
Total weight ：370g