Features: brand new and high quality Tracing sockets and distribution sockets having accidentally been covered by plastering. Detecting cables, electrical lines-water/gas supply pipelines buried in-wall or earth. Testing interruptions and short circuit in cables and electrical lines buried in-wall or earth. Detecting fuses and assigning current circuits. Detecting interruptions and short-circuits in-floor heating. The sensitivity of the receiver can be adjusted either manually or automatically. The transmitter has the function of self-inspection and both transmitter and receiver have mute function. Compact structure, strong and durable, convenient to carry. You need to read the user manual carefully before learn using this product. Package Includes: 1 x Transmitter ( battery included) 1 x Receiver 1 x Cloth Bag 1 x Grounding Rod 2 x Test Pen 2 x Clamp 2 x 1.5m Measuring Line 1 x User Manual Specifications: Material: ABS Size: 190x89mm/ 7.48x3.5 in, 78x38.5mm/ 3.07x1.51 in Transmitter: Output signal: 125KHz External voltage identification voltage range: for DC 12~400V2.5%; AC 12~400V (50~60Hz)2.5% Temperature measurement accuracy: 2.5 Display: LCD, with function display and bar chart External voltage dielectric strength: maximum 400V AC/for DC Overvoltage category: CA for T III 300V Pollution level: 2 Power consumption: Minimum current: about 31mA Maximum current: about 115mA Fuse: F 0.5A 1000V, 6.3x32mm Operating temperature: -10~50, with Max. RH of 80% (non-condensation) Storage temperature: -20~60, with Max. RH of 80% (non-condensation) Altitude: Max. 2000m Receiver: Tracking depth: tracking depth depends on the media and the specific application Cable positioning mode: Unipolar application: about 0-2m Bipolar application: about 0-0.5m Separate return line: up to 2.5m G-r-i-d voltage identification: about 0-0.4m note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.