Strengths: Large illuminated LC display measuring 7 x 52 mm for simultaneous display of multiple parameters. Analysis functions: REL monitoring function with timestamp, PEAK + / and versatile additional features. Illuminated control buttons. Optimized user-friendliness: sealed housing IP67, safety sockets IEC 61-1-1 V CAT III/6 V CAT IV, power supply via battery or Ni-MH rechargeable battery (with external charger), contextual connection display on the screen. Advanced multimeter with additional measurement functions in the selected measurement mode: relative measurements or direct current measurements with clamp current transformer (with mV output), adjustable transformer ratios. USB networking via included SX-DMM software and SCPI programming commands. Description ASYC IV MTX 3291 - The new benchmark for multimeters. The portable digital multimeters enable direct measurement of the most important electrical quantities. They feature an innovative design and are compact, robust, waterproof, and ergonomic. Simple multimeter with LCD display 70 x 52 mm with very good readability. Contextual display of connection terminals on the screen. Automatic range selection for current, 1 single socket up to 10 A. Auxiliary measurements complementing the main measurement to simplify analysis. Monitoring: MIN/MAX and AVG data with relative time recording, voltage and current peaks. SX-DMM software for real-time data processing on a PC. And much more... IP67, splash-proof and dust-proof, perfectly suited for outdoor use. Power supply via 4 standard AA batteries or 4 rechargeable Ni-MH batteries HX0051B (optional) via external module. Autonomy of up to 400 hours in battery operation.