Specifications: Model: UT25CL Output Signal Frequency: 33KHz External Voltage Recognition Range: 8-480V External Voltage Recognition Frequency Range: AC: 50-60Hz External Voltage Measurement Accuracy: ±2.5%+3° Display Mode: LCD Power Supply Mode: 1.5V, AA alkaline batteries x6 Overvoltage Rating: CAT III 480V Dimensions: Transmitter: 189 x 96 x 48 mm Receiver: 226 x 68 x 38 mm Weight: Transmitter: 528 g Receiver: 354 g Features: Accurate Test: Utilizes a 33KHz output signal frequency for precise underground cable path tracing and voltage recognition ranging from 8V to 480V. Enhanced Safety: Equipped with a CAT III 480V overvoltage rating and 480V DC/AC maximum dielectric strength for safe operation in high-voltage environments. User-friendly Design: Features an LCD display with backlight, automatic power-off function, and manual sensitivity adjustment for ease of use in various settings. Versatile Testing: Supports unipolar and bipolar testing under power up to 480V, as well as line find mode with positioning depths of 0-2.5m for flexible application. Comprehensive Accessories: Comes with test probes, dual inline test cables, alligator clips, an auxiliary grounding nail, and both Chinese and English manuals for complete setup and operation. Package Included: 1 x UT25CL-T transmitter 1 x UT25CL-R receiver 6 x 1.5V AAA Batteries 6 x 1.5V AA Batteries 2 x Test Probes (Red, Black) 2 x Dual Inline Test Cables (Red, Black) 2 x Alligator Clips (Red, Black) 1 x European Plug Cable 1 x Auxiliary Grounding Nail 1 x Chinese Safety Manual 1 x English Safety Manual