Specification Brand : Irfora BulletPoint1 : 【Scientific & Ergonomic Design】: Encased in shock-absorbing rubber for enhanced durability, drop resistance, and a comfortable grip, ensuring reliable performance even in demanding field conditions. High sensitivity sensing probe and sponge ball windshield design for fast response and high accurate probe, handing over professional work to professional instruments. BulletPoint2 : 【Integrated Multifunctionality】: Combines unit conversion, auto-ranging, Max/Min display, BT communication, data locking functions for comprehensive, user-friendly sound level assessment. Equipped with thoughtful digital LCD backlit screen for easy data reading, easy to cope with strong light, night and other harsh environments. BulletPoint3 : 【A-weighting/C-weighting】: Accurately emulates the frequency response of human hearing for low-intensity (<55 dB) and high-intensity mechanical noises, ensuring reliable measurement under diverse acoustic environments. BulletPoint4 : 【Fast/Slow Mode Selection】: Seamlessly tures fluctuating transport noise with a responsive 125 ms FAST mode or measures stable noise levels with a 1000 ms SLOW mode, presenting the effective value for precise analysis. BulletPoint5 : 【Versatile Applications & Enhanced Convenience】: This instrument caters to a broad of uses, including noise engineering, quality control, film production, construction, automotive testing, and educational settings, delivering professional-grade s with lasting cost-effectiveness. Color : Multicolor ItemName : Household Noise Decibel Tester Professional 30-130dB Digital Noise Meter Handheld Fully Functional Digital Sound Level Meter LCD Backlit Display with Analogue Bar Maximum Minimum Display Data Hold ItemPackageQuantity : 1 ItemTypeKeyword : sound-and-noise-meters Manufacturer : Irfora PartNumber : LAKUSE25844-1 ProductDescription : Specifications: Name: Noise Decibel Tester Material: plastics Type: ZL82A, ZL82B (optional) Battery type: 3 * AAA battery (ZL82A, not included), 1000mAh lithium battery (ZL82B, included) (according to your selection) Measuring s: 30-130dB Sampling rate FAST: 125ms Sampling rate SLOW: 1sec Accuracy: ±1.5dB Frequency response s: ±30Hz-8KHz Resolution: 0.1dB A-weighting/C-weighting: yes Analogue displey: yes Data hold: yes Maximum/minimum value: yes Automatic shutdown: yes Low voltage indication: yes Package size: 185 * 92 * 44mm / 7.28 * 3.62 * 1.73in Package weight: ZL82A: 245g / 8.64ounce ZL82B: 282g / 9.95ounce