Features:• High accuracy of ±1.0dB to 1kHz meets Type 2 standards• Triple range measurement (50dB dynamic range)• A & C frequency weighting• Fast & Slow time weighting• Real-time data logger with integrated SD memory card• User selectable sampling rate from 1 to 3600 seconds• Peak hold, Data hold and Min/Max hold• Easy-to-read backlit LCD display• Tripod mount for long-term monitoring• Low battery indicator and auto shut off• The single AC output jack (3.5mm stereo mini-plug) provides analog signals to frequency analysers, level recorders, FFT analysers, graphic recorders, etc.