Description
Overview
GAOTek handheld environment noise tester is an ideal tool to measure Sound Pressure Level in decibels (dB). It is used for sound quality control in factories, offices, homes, schools, restaurants, hospitals and construction sites, etc.
Features
- Wide measurement range 30 dBA to 130 dBA, 35 dBC to 130 dBC
- Accuracy up to + per -1.5 dB
- 100% brand new
- With modern, compact, portable design
- Easy to use
- Frequency weighting characteristic A and C
- Time weighting characteristic fast and slow
- AC or DC output
- Bar graph indication
- Equipped with sponge ball to filter-out unwanted signals
- Maximum reading hold
- Auto power off
- Overload indication over or under
- Auto backlight display
- Low battery indication
- Powered by 4 x 1.5 V AA batteries (not included)
Technical Specifications
| Measuring range | 30 dBA to 130 dBA, 35 dBC to 130 dBC |
| Accuracy | 30 dBA to 130 dBA, 35 dBC to 130 dBC |
| Frequency range | 31.5 Hz to 8.5 KHz |
| Frequency weighting | A or C |
| Digital display | 4 digits |
| Resolution | 0.1 dB |
| Measuring level | 30% to 130%, 40% to 90%, 50% to 100%, 60% to 110%, 80% to 130% |
| Linearity range | 50 dB or 100 dB |
| Sample rate | 2 times per second |
| AC output |  0.707 Vrms at FS output impedance approximately 600 Ω |
| DC output | 10 mV per dB, output impedance approx. 100ohm |
| Microphone | 1 per 2 in electret condenser microphone |
| Power supply | 4 x AA 1.5 V Battery (not included) |
| Operating temperature | 32 ℉ to 104 ℉ (0 ℃ to 40 ℃) |
| Operating humidity | 10% to 80% RH |
| Storage temperature | 14 ºF to 140 ºF (-10 ºC to 60 ºC) |
| Storage humidity | 10% to 70% RH |
| Dimension | 2.7 in x 1.3 in x 10 in (70 mm x 35 mm x 256 mm) |
| Weight | 10.8 oz (308 g) (including battery) |