[DETAIL] Invoice description: The list price of our store does not include tax points, and the invoice is issued with additional tax points. Consult customer service in detail. Thank you!!! Product Features L Noise measurement program:: 30 to 130dB (automatic range) L Frequency weighted characteristics: A/C L With fast/slow reaction rate selection L value retention function L High precision L Fan display L AC/D output function L White backlight display L Overrange alarm function L Time display L Automatic shutdown can be set L Tripod nut (excluding tripod) L USB cable, signal cable, zipper belt L CE and ROHS certification Technical Specifications: Noise check source: 94dB @1kHz Measuring range: 30~ 130dB A Degree: + 1.5dB (pressure level between references, 94dB@1KHz) Frequency response 31.5~ 8.5KHz Resolution: 0.1dB Frequency weighted characteristics: A and C characteristics Analog sector chart: 2 db/1 sector chart Sampling rate: 2 times/second (fast), 1 time/second (slow) AC signal full output: 250 vrms; output impedance approximately 600 ohms DC signal output: 33 mV/dB Dynamic characteristics: fast (high speed)/slow (low speed) Number of data stored: 32000 readings Power supply: 6 v (4X AA; size 1.5 v battery) Size: 245 * 70 * 45mm Weight: 400 g Reminder: Due to the limitation of battery transportation, all products are shipped without batteries by default. If you need to be equipped with batteries, please remember to note when placing an order! [ATTRIBUTES] - Battery Included: No - Hign-concerned Chemical: None - Origin: Mainland China - Battery Included: No - Hign-concerned Chemical: None - Origin: Mainland China - resolution: 0.1 - item number: TL-202 - Model: TL-202 - Specifications: TL-202 Black - measurement accuracy: 1.5dB - Order number: TL-202 - weight: 0.4 - operating temperature: 0 to 50 degrees - size: 245 * 70 * 45 - Measuring range: 30 to 130dB - processing customization: Yes - Whether to import: No - type: precision noise meter