Specifications
| 传声器 | 12.5 mm电容传声器 |
| resolution | 0.1dB |
| Precision | ± 2 dB |
| measurable parameter | 4 kinds (Lp/Leq/Lmax/LN) |
| Measurement range | Lp / Leq / LN |
| Frequency range | AS-156A: 20~8,000 Hz |
| Frequency Weighting | “A”/“C”/“F”（Flat） |
| time Weighted | Fast, slow. |
| Alarm value setting | 30~130dB |
| Built-in calibrated signal | 94dB (1000Hz sinusoidal signal) |
| Storage memory function | Measurement conditions and data |
| Power supply Voltage | 4X1.5vAAA No. 7 battery |
| Dimension | 140*70*30mm |
| Weight | 130G (without battery) |
Packing list
host x1, portable portable case x1, instruction manual x1, windshield x1.
After-sales instructions
Warranty days: 730 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/5134/Specification.html , which is only used by users who purchase commodities from the NBCHAO.