Product Description Model Number: MS6818S (Upgraded from MS6818, functionality unchanged) Key Features Efficiently detects cables, electrical lines, and water/gas supply pipelines buried in walls or earth. Capable of identifying interruptions and short circuits in cables and electrical lines. Locates fuses and current circuits effortlessly. Detects interruptions and short-circuits in floor heating systems. Finds sockets and distribution sockets covered by plastering mistakenly. Transmitter Highlights Integrates AC/DC voltmeter functionality, measuring 12 to 400V AC/DC systematically. Displays preset transmitting power, codes, battery energy, detected voltage, and AC/DC status with voltage warnings on its screen. Includes self-inspection capability to display working status on the LCD screen for user reference. Receiver Features Sensitivity adjustable both manually and automatically. Automatic frequency sweeping capability, with mute operation possible. Expandable with additional transmitters to differentiate multiple signals. Specifications Technical Specifications Voltage Measurement Range: Transmitter: 12V-400V (AC / DC) Output Signal: Transmitter: 125KHz Voltage: Transmitter: Maximum 400V (AC / DC) Cable Depth Measurement: Receiver 0-2.5 m (wall / underground cable) Main Voltage Measurement: Receiver 0-0.4m Environment Specifications Work Environment: Transmitter: 0~40°C; Receiver: 0~40°C Storage Temperature: Transmitter & Receiver: -20°C~60°C Relative Humidity (no condensation): Maximum 80% Measuring Height: Maximum 2000m Battery: 6 x 1.5V AAA Battery (NOT included), 1 x 9V Battery (NOT included) Package Includes 1 x MS6818 Receiver 1 x Transmitter 1 x Test Leads (Black & Red) 1 x Test Probe (Black & Red) 1 x Crocodile Clamps (Black & Red) 1 x Grounding Rod 1 x User Manual