Here you can compare the prices for motion Detectors Velleman, get acquainted with photos and technical characteristics (for example Light sensitivity, Bracket dimensions (WxDxH), Pet immunity (max), Static current, Duration adjustment, Output contacts) and buy a liked model motion Detectors in one of the reliable online stores.
Sound Level Meter
Features - 2 modes provide 2.5dB or 3.5dB accuracy - A and C weighting: high and low measuring ranges: low (35 to 100dB) / high (65 to 130dB) - 0.1dB resolution - fast/slow response - data hold and max hold function - large 3 1/2-digit LCD display with function indication - built-in calibration check (94dB) - complete with 9V battery and carrying case
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