1. Measurement range: 30dB - 130dB
2. Measurement range: 30dB - 70dB, 60dB - 90dB, 80dB - 110dB, 100dB - 130dB
3. Accuracy: about 1.5dB (based on standard sound source, 94dB@1KHz)
4. Resolution: 0.1dB
5. Frequency weighting: TA652A: A/C; TA652B: A/C/Z
6. Frequency response: 31.5Hz - 8.5KHz
7. Sampling rate: 2 times / second
8. Analog bar: 1 scale represents 1dB
9. Noise display: 4 digits, up to 1999
10. Microphone: high sensitivity 1/2 inch condenser microphone
11. Automatic shutdown: 15min (can be manually shut down)
12. Operating environment: -10 - 50 degrees Celsius, within 80% relative humidity, indoor altitude less than 2000m
13. Storage environment: -10 - 50 degrees Celsius, within 70% relative humidity (remove the battery)
14. Power supply: 3 x 1.5V AA (LR06) batteries (not included) / USB Micro interface 5V
15. Display size: approx. 5.3 x 4.4cm
16. Dimensions: about 22.9 x 7 x 3.5cm
17. Weight: approx. 215g

Features:
1. Highly sensitive 1/2 inch condenser microphone with high accuracy, high sensitivity and instantaneous response
2. With A/C/Z three weighting mode measurement, can be connected to the frequency analyzer or X-Y axis recorder to do statistical analysis (Z frequency weighting only TA652B)
3. Data recording: the host can record and store 1999 sets of data; TA652B can export the data recorded by the host through the USB interface with the computer host software communication and generate charts
4. VA high-definition color screen display, display with background lighting
5. Upper limit alarm prompt: the upper limit alarm threshold can be set, when the measurement is higher/lower than the set threshold, the buzzer will alarm prompt sound, and the alarm prompt light flashes
6. Battery (not included) / USB interface two power supply modes, 15 minutes no operation after the automatic shutdown (can be manually canceled)

Packing list:
- Host x 1
- Cloth bag x 1
- Instruction manual x 1
- USB data cable x 1 (TA652B)