... quickly. Powerful Dual-channel analysis functionBesides scheduled data collection, RH822 provides powerful unscheduled data collection and analysis function, include: 1).Time domain waveform, FFT ... )°C, storage temperature range: (-20~+60)°CButtons22 buttons (with numeric type in), with backlightCommunicationUSBDimensions190mm x 110mm x 38mm (without cover)Protection gradeIP65 ...