The AET-933 is a lightweight and user friendly sound level indicator offering 4 measurements ranges (3 manually selectable, 1 auto range). It offers selectable ‘A’ or ‘C’ frequency weightings and a choice of either fast or slow time weightings. It is designed to match the accuracies required of IEC 61672:2013 at ±1.4dB.
4 measurement ranges
30 to 80dB
50 to 100dB
80 to 130dB
30 to 130dB (Auto range)
Over/under range indicator
1dB resolution
Selectable ‘A’ or ‘C’ frequency weightings
Frequency range 31.5hz to 8mhz
Selectable fast (125ms) or slow (1s) time weightings
Precision ½ inch electret condenser microphone
Lmax (LAFmax, LASmax, LCFmax, LCSmax)
Lmin (LAFmin, LASmin, LCFmin, LCSmin)
35mm LCD display with bargraph and function indicators
LCD display backlight
Data hold
Max hold – displays highest measured value
Min hold – displays lowest measured value
Low battery indicator
Auto power off after 15 minutes of no activity
Supplied with soft carry case, wind muffler, battery and 2 year warranty
A calibration service can be purchased for this unit. Once the Service has been performed a certificate of calibration is produced and dispatched with your order. Calibration Services are performed on receipt of your order and as such will delay shipping. Details and options are outlined below.
Traceable Calibration (Sound)
Issued at 12 points:
94dB at A & C, Fast & Slow, Hi & Lo Range
104dB at A & C, Fast & Slow, Hi Range
Traceable certification is adequate for most applications and meets the calibration requirements of ISO 9001. All measurements contained in this type of certification are traceable back to National UKAS Standards.
