Digital Sound Pressure tester Level Meter 40~130dB Decibel Noise Measurement

[Music] hello again that's Robert Veatch here this is my video review of the HT - ad a psalm level meter it comes with the unit itself a nice little zipper holder and an instruction manual talking about all the specs of this device this has a range of 40 to 130 decibels and it has two ranges 40 to 100 is the first range 60 to 130 is the second range has a half inch LCD display the response time is really quick it's less than 1/2 of a second it's accurate to plus or minus one of the half decibels it has data hold for maximum and minimum to show you auto power off the frequency range that it works with is 31 point 5 to 4 kilohertz so keep that in mind as this boot shouldn't be used for higher frequencies than what is typically in your mid-range and your subwoofers and your bass speakers it takes a 9-volt battery you get about 50 hours of use uses a bleeding on the frequency scale and has