Looking for a cheap noise meter I tentatively devices "Benetech GM1351" and "Pellor SL1361" ordered and decided after a brief test for the presiwerte Benetech device without measurement recording. The measurement differences between the two devices are easy to 5dB, but both with the "MAX" function allow a halfway plausible measured value for noise pollution achieved. When testing the measurement values by the background noise of my car for plausibility test, I realized that the Kooltron - for whatever reason - the interior noise of a car can not be measured correctly: regardless of speed consistently level> 65 dBA are shown (if low-frequency humming noises that are not perceived by the ear). Moreover, since the storage and readout of the measured values in the device more expensive for me was not intuitively, I will keep the cheaper unit.
