This multifunctional tool Features the function of multimeter, temperature meter, electrical test pen and flashlight. With backlight LCD screen for easy reading andcomfortable grip for easy operation, it can be widely used in electrical testing, car repairing, industrial temperature measuring, etc. Features: 4-in-1 Multifunctional Clamp MeterMultimeter, temperature meter, electrical test pen and flashlight. Two measuring pens and a thermocouple equipped are easyto install and use. Widely used in electrical testing, car repairing, industrial temperature measuring, etc. Auto Recognition/ Manual SelectionHigh accuracy, wide measuring range, 6000 counts, one key measuring, auto recognition or manual selection. It can test ACvoltage, DC voltage, AC current, DC current, resistance, capacitance, diode, frequency, continuity and temperature. Temperature MeasurementComes with a thermocouple, this smart clamp meter Features -200~1300 (-328~2372) wide measuring range for industrialtemperature measuring, which has quick response and brings accurate data. Touchless Electrical Test PenBring the NVC probe close to the detection point, and it will send out an audible and visual alarm when the AC voltage is detected. Itcan help you recognize zero line and live line safely and easily. Backlight LCD Screen & FlashlightClear LCD screen with backlight greatly enhances the reading experience and makes it easy to read. Flashlight to illuminate themeasurement object without fear of dark environment. Battery Operated & Compact SizePowered by 3 AAA batteries, auto power off in about 15 minutes to save power. Ergonomic design, perfectly fit your palm forconvenient use. Concise and small appearance, portable and lightweight, comes with a storage bag, easy to carry. Note: 1. Please read the user manual carefully before use. 2. Size and color may be slightly different due to manual measurement and different lighting conditions. Thanks for understanding. Specifications: Type: (Optional) --ST191: Measure AC Current --ST192: Measure AC/ DC Current Color: Black & Red Material: ABS Screen: LCD Max. Count: 6000 Counts Max. Voltage: 600V DC or AC Max. Current: 600A DC or AC Max. Capacitor: 60mF Max. Resistance: 60M Max. Frequency: 10MHz Temperature Measuring Range: -200~1300/ -328~2372 Operating Height: Max. 2000m Power Supply: 3 * 1.5V AAA Battery (NOT included) Auto Shutdown: about 15min Operating Environment: 18~28/ 64.4~82.4 Storage Environment: -10~50/ 14~122 Item Size: 230 * 80 * 38mm / 9.06 * 3.15 * 1.50in Item Weight: 166g / 5.86oz Package Size: 260 * 120 * 55mm / 10.24 * 4.72 * 2.17in Package Weight: 443g / 15.63oz Package List: 1 * Smart Clamp Meter 2 * Measuring Pen 1 * Thermocouple 1 * User Manual 1 * Storage Bag