Sound Level Meter
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| Origin | Zhejiang, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | AWA5661 |
| Pricing | Upon Request |
| [Origin | Jiangsu, China |
|---|---|
| Model | AWA5680 |
| Compliance | GB/T 3785.1–2010 Class 2, IEC 61672–1:2013 Class 2 |
| Frequency Range | 20 Hz – 12.5 kHz |
| Measurement Range | Up to 140 dB (customizable) |
| Dynamic Range | 100 dB (linear, auto-ranging) |
| Self-Noise | <23 dB(A), <27 dB(C), <30 dB(Z) |
| Frequency Weightings | A, C, Z |
| Time Weightings | F, S, I |
| Display | 128×128 dot-matrix LCD with LED backlight |
| Data Storage | 2048 integrated results / 1024 statistical sets / 40 × 24-h monitoring sessions |
| Sampling Rate | 32 kHz |
| Operating Temperature | −10 °C to +50 °C |
| Power | 4× LR6 alkaline batteries (≥40 h) or 5 V DC external supply |
| Dimensions | 240 × 80 × 30 mm |
| Mass | 0.37 kg |
| Interfaces | AC/DC output, RS-232C, optional AH40 thermal printer & AWA8570 GSM module] |
| Brand | Hangzhou Aihua |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | AWA5688 |
| Instrument Type | Handheld Noise Measurement Instrument |
| Frequency Range | 20 Hz – 12.5 kHz |
| Measurement Range | 25 dB(A) – 130 dB(A) |
| Self-Noise | ≤20 dB(A) |
| Accuracy Class | Class 1 per GB/T 3785.1–2010 |
| Measurement Duration Options | Manual trigger or automatic intervals (10 s, 1 min, etc.) |
| Microphone System | 1/2″ pre-polarized condenser microphone (Φ12.7 mm) with AWA14602 preamplifier |
| Reference Sensitivity | −40 dB re 1 V/Pa |
| Linear Dynamic Range | 105 dB (A-weighted) |
| A/D Resolution | 24-bit |
| Sampling Rate | 32 kHz |
| Simultaneous Weightings | A/C/Z frequency + F/S/I time weightings |
| Detector | True RMS digital detection |
| Compliance Standards | GB/T 3785.1–2010 Class 1, IEC 61672–1:2013 Class 1, GB/T 3241–2010 Class 2, IEC 61260–1:2014 Class 2 |
| Display | 2.6″ color TFT LCD, 240 × 320 pixels, auto/manual backlight (46-level adjustment) |
| Origin | Zhejiang, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | AWA6218C |
| Pricing | Upon Request |
| Accuracy Class | Type 2 per IEC 61672:2002 & GB/T 17181 |
| Microphone | 1/2″ Pre-polarized Condenser, Sensitivity ≈ 40 mV/Pa |
| Frequency Range | 20 Hz – 12.5 kHz |
| Measurement Range | 35 dB – 130 dB (optional extended: 27 dB – 120 dB) |
| Frequency Weighting | A-weighting only |
| Time Weighting | Fast (F), Slow (S) |
| Detector | Digital True RMS, Crest Factor ≥ 3 |
| Operating Modes | Single-shot, 24-hour Automated Logging |
| Measured Metrics | L<sub>p</sub>, L<sub>inst</sub>, L<sub>5</sub>, L<sub>10</sub>, L<sub>50</sub>, L<sub>90</sub>, L<sub>95</sub>, E (Sound Exposure), L<sub>eq</sub>, L<sub>max</sub>, L<sub>min</sub> |
| Integration Times | Manual, 10 s, 1 min, 5 min, 10 min, 20 min, 1 h, 2 h, 4 h, 8 h, 24 h |
| Real-time Clock | Battery-backed calendar clock with persistent timekeeping during power loss |
| Data Storage | Up to 120 measurement sets with statistical distribution graphs, non-volatile Flash RAM |
| Interface | RS-232 serial port for printer or PC communication |
| Optional Filters | Compatible with AWA5721 (octave-band) or AWA5722 (1/3-octave-band) external filter sets |
| Printer Support | UP40 thermal micro-printer |
| Power Supply | 4 × AA alkaline batteries (≥48 h operation, <20 mA current draw) |
| Operating Temperature | 0 °C to 40 °C (extended range: –10 °C to +50 °C, optional) |
| Dimensions | 220 × 72 × 32 mm |
| Mass | ≈ 0.3 kg |
| Origin | Zhejiang, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | AWA6221 / AWA6221B |
| Pricing | Available Upon Request |
| Nominal Sound Pressure Level | 94 dB and 114 dB (re 20 µPa) for AWA6221 |
| Frequency | 1 kHz ± 5 Hz (AWA6221) |
| Accuracy Class | Class 1 per GB/T 15173–2010 (AWA6221) |
| Sound Pressure Level Tolerance | ±0.3 dB at 94 dB, ±0.5 dB at 114 dB (AWA6221) |
| Total Harmonic Distortion (THD) | ≤1% at 94 dB |
| Power Supply | 1 × 6F22 (9 V alkaline battery) |
| Compatible Microphone Sizes | 23.77 mm (1″) and 12.7 mm (1/2″) for AWA6221 |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | AWA6290A |
| Pricing | Available Upon Request |
| Brand | Hangzhou Aihua |
|---|---|
| Origin | Zhejiang, China |
| Model | AWA6292 |
| Frequency Range | 10 Hz–20 kHz |
| Measurement Range | 20 dB(A)–143 dB(A) |
| Self-Noise | ≤22 dB(A) |
| Accuracy Class | Class 1 (IEC 61672-1:2013) |
| Measurement Durations | 10 s, 1 min, 5 min, 24 h continuous |
| Display | 4.3″ capacitive touchscreen |
| Storage | 16 GB internal + microSD expansion up to 64 GB |
| Connectivity | 4G LTE, Wi-Fi 802.11 b/g/n, Bluetooth 5.0, USB-C, RS-232 serial |
| Protection Rating | IP65 (instrument body, excluding microphone) |
| Battery | 10,000 mAh Li-ion, 20 W fast charging (2 h → 24 h operation) |
| Operating Temperature | −20 °C to +60 °C |
| Dimensions | 288 × 95 × 40 mm |
| Weight | 500 g |
| Brand | Casella |
|---|---|
| Origin | United Kingdom |
| Model | CEL-240 |
| Compliance | IEC 61672-1:2013 Class 2, ANSI S1.4-2014 Type 2 |
| Measurement Range | 30–130 dB(A), 35–130 dB(C) |
| Frequency Weighting | A, C, Z (Linear) |
| Time Weighting | Fast (F), Slow (S), Impulse (I) |
| Max Hold Function | Yes |
| Battery Life | >35 hours (alkaline) |
| Data Output | USB 2.0 (real-time & stored data) |
| Display | High-resolution backlit LCD with time-history trace |
| Operating Temperature | −10 °C to +50 °C |
| IP Rating | IP54 |
| Warranty | 2 years |
| Brand | Casella |
|---|---|
| Origin | United Kingdom |
| Model | CEL-620 |
| Compliance | IEC 61672-1:2013 Class 1, IEC 61260-1:2014 Class 0 (for CEL-620B), ANSI S1.4-2014, ANSI S1.43-2020 |
| Measurement Range | 20–140 dB RMS (single full scale), 143 dB peak |
| Frequency Weightings | Simultaneous A-, C-, and Z-weighting |
| Time Weightings | Simultaneous Fast, Slow, and Impulse |
| Integrated Metrics | L<sub>XY</sub>, L<sub>XY,max</sub>, L<sub>XY,min</sub>, L<sub>X,eq</sub>, L<sub>avg</sub>, L<sub>C−A</sub>, L<sub>AE</sub>, L<sub>TM3–TM5</sub> |
| Octave Band Analysis | 11 bands (16 Hz–16 kHz, CEL-620B only) |
| Display | 320 × 240 pixel TFT color LCD |
| Data Storage | 100 measurement sessions with full metadata |
| Power | 3 × AA alkaline or rechargeable batteries (11 h with backlight, 20 h without) |
| Operating Temperature | −10 °C to +50 °C (Class 1), 0 °C to +40 °C (Class 2) |
| Dimensions | 72 × 229 × 31 mm |
| Weight | 295 g |
| Brand | Cirrus Research |
|---|---|
| Origin | UK (designed and engineered in the UK |
| Model | CR161 / CR162 |
| Compliance | IEC 61672-1:2013 Class 1 & Class 2, IEC 61252:2017, ANSI S1.4-2014 (R2019), ANSI S1.43-2020, IEC 61260-1:2014 (1:1 octave band), EN 50581:2012 (EMC), RoHS/REACH compliant |
| Measurement Range | 20 dB(A) to 140 dB(A) |
| Peak C-weighted | up to 143 dB(C) |
| Display | High-resolution color OLED screen with auto-backlit keypad |
| Microphone | MK224 (Class 1) or MK216 (Class 2), pre-polarized condenser |
| Memory | 4 GB internal flash storage (up to 10,000 measurement sets) |
| Battery Life | Up to 12 hours on 4 × AA alkaline cells |
| Operating Temperature | −10 °C to +50 °C |
| Dimensions | 283 mm × 65 mm × 30 mm |
| Weight | 300 g |
| Brand | -- |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | EDGE |
| Pricing | Upon Request |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Domestic |
| Model | HS5618 |
| Price | Upon Request |
| Measurement Range | 40–130 dB |
| Noise Dose Range | 0–1999% (reference: 90 dB for 8 h = 100%) |
| Microphone | Ø12.7 mm electret condenser (HS14423B), sensitivity 25 mV/Pa, frequency response 20–12.5 kHz |
| Frequency Weighting | A and C |
| Time Weighting | F (Fast), S (Slow), Max Hold |
| Detection | True RMS with crest factor ≥3 |
| Integration Times | Auto: 10 s, 1 min, 5/10/15/20 min, 1 h, 8 h, 24 h |
| Manual | up to 24 h |
| Display | 3½-digit LCD showing Lp, Leq, Lae, DL |
| Calibration | Compatible with HS6020 calibrator (94 dB @ 1 kHz) |
| Power | 6 × 1.5 V LR6 alkaline batteries |
| Dimensions | 240 × 47 × 30 mm |
| Mass | 0.4 kg (with batteries) |
| Operating Environment | 0–40 °C, 20–90% RH |
| Compliance | GB/T 3785–2010, IEC 61672-1:2013 Class 2, IEC 61252:2017 |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | HS5618A |
| Price | Upon Request |
| Measurement Range | 35–130 dB(A/C) |
| Noise Dose Range | 0–9999% DL |
| Frequency Range | 20 Hz–10 kHz |
| Frequency Weighting | A and C |
| Time Weighting | Fast (F), Slow (S), Max Hold |
| Integration Times | Auto (10 s, 1 min, 5 min, 10 min, 15 min, 20 min, 1 h, 8 h, 24 h) or Manual (up to 24 h) |
| Data Storage | 500 single-event records + 4 hourly summary sets |
| Display | 64×128 dot-matrix LCD with real-time clock |
| Power Supply | 5 × 1.5 V alkaline batteries (AA) or external DC 9 V input |
| Dimensions | 307 mm × 80 mm × 30 mm |
| Compliance | IEC 61672-1:2013 Class 2 |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | HS5618A |
| Pricing | Available Upon Request |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | HS5628 |
| Price Range | USD 280–700 |
| Frequency Range | 20 Hz–10 kHz |
| Sound Pressure Level Range | 30 dB(A) to 130 dB(A) |
| Frequency Weighting | A, C |
| Time Weighting | Fast (F), Slow (S) |
| Detector | Digital True RMS with Peak Factor ≥ 3 |
| Dynamic Range per Range | ≥ 60 dB (High/Mid/Low 3-range auto-switching) |
| Measurement Duration Options | 10 s, 1 min, 5 min, 10 min, 15 min, 20 min, 30 min, 1 h, 8 h, 24 h, Manual |
| Metrics Calculated | L<sub>p</sub>, L<sub>eq</sub>, L<sub>AE</sub>, SD, L<sub>max</sub>, L<sub>min</sub>, E (Sound Exposure) |
| Display | 8×2 dot-matrix LCD |
| AC Output | Yes |
| Power Supply | 2 × AA alkaline batteries |
| Dimensions (L×W×H) | 200 × 62 × 30 mm |
| Mass | 200 g (including batteries) |
| Operating Temperature | –10 °C to +50 °C |
| Relative Humidity Range | 20%–90% RH (non-condensing) |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Domestic (China) |
| Model | HS5628 |
| Pricing | Upon Request |
| Microphone | 1/2″ (Φ12.7 mm) Electret Condenser |
| Measurement Range | 35 dB to 130 dB |
| Frequency Range | 20 Hz – 10 kHz |
| Frequency Weighting | A, C |
| Time Weighting | Fast (F), Slow (S) |
| Detector | Digital True RMS with Peak Factor ≥ 3 |
| Range Selection | High / Medium / Low (≥60 dB linear range per range) |
| Measurement Durations | 10 s, 1 min, 5 min, 10 min, 15 min, 20 min, 30 min, 1 h, 8 h, 24 h, Manual |
| Metrics | L<sub>p</sub>, L<sub>eq</sub>, L<sub>AE</sub>, SD, L<sub>max</sub>, L<sub>min</sub>, E |
| Display | 8×2 Dot-Matrix LCD |
| AC Output | Yes |
| Power Supply | Two AA batteries |
| Dimensions (L×W×H) | 200 × 62 × 30 mm |
| Mass | 200 g (including batteries) |
| Operating Temperature | −10 °C to +50 °C |
| Relative Humidity | 20% – 90% RH |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Domestic |
| Model | HS5628A |
| Pricing | Upon Request |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Domestic (China) |
| Model | HS5628B |
| Price | Upon Request |
| Microphone | 1/2″ (Φ12.7 mm) electret condenser |
| Measurement Range | 35–130 dB(A), 40–130 dB(C) |
| Frequency Range | 20 Hz – 10 kHz |
| Frequency Weighting | A, C |
| Time Weighting | Fast (F), Slow (S) |
| Detector | Digital detection with peak factor ≥3 |
| Dynamic Range per Range | ≥60 dB |
| Range Settings | High (70–130 dB), Medium (50–110 dB), Low (35–90 dB) |
| Measurement Modes | Mode 1 (integrated metrics: L<sub>p</sub>, L<sub>eq</sub>, L<sub>AE</sub>, L<sub>max</sub>, L<sub>min</sub>, E |
| duration options | 10 s, 1, 5, 10, 20, 30 min, 1 h, 8 h, 24 h, or manual) |
| Mode 2 (continuous L<sub>eq</sub> with user-defined interval | 1–10 s) |
| Display | 8×2 dot-matrix LCD |
| Data Storage | 500 measurement sets |
| Interface | RS-232 serial port |
| Power Supply | 3 V (2 × AA batteries) |
| Dimensions (L×W×H) | 160 × 52 × 25 mm |
| Mass | 200 g (including batteries) |
| Operating Temperature | −10 °C to +50 °C |
| Relative Humidity | 20–90 % RH |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | HS5633 |
| Price Range | USD 140–280 |
| Frequency Range | 31.5 Hz – 8 kHz |
| Measurement Range | 35 dB(A) – 130 dB(A) |
| Frequency Weighting | A-weighting, C-weighting |
| Time Weighting | Fast (F) |
| Display | 2-line alphanumeric LCD with backlight |
| Output | AC & DC analog outputs |
| Power Supply | 1 × 9 V alkaline battery |
| Dimensions | 230 × 72 × 30 mm |
| Mass | 200 g |
| Compliance | GB/T 3785–2010 Class 2, IEC 61672-1:2013 Class 2 |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | HS5633A |
| Pricing | Available Upon Request |
| Microphone | 1/2″ Electret Condenser, 30 mV/Pa |
| Frequency Range | 20 Hz – 10 kHz |
| Measurement Range | 35–120 dB (L: 35–90 dB |
| H | 60–120 dB) |
| Frequency Weighting | A, C |
| Time Weighting | Fast (F) |
| Detector | RMS + Peak (Peak Factor ≥3) |
| Display | 2×8 Character LCD, 0.1 dB Resolution, 1 Hz Update Rate |
| Compliance | IEC 61672-1:2013 Class 2, GB/T 3785.1–2010 Class 2 |
| Reference SPL | 94 dB @ 1 kHz |
| Reference Incidence | Axial |
| Power Supply | 1 × 9 V Alkaline (6F22), <15 mA |
| Dimensions | 170 × 52 × 24 mm |
| [Origin | Jiangsu, China |
|---|---|
| Type | Class 2 SLM per IEC 61672-1:2013 & JJG 188–2002 |
| Frequency Weighting | A/C |
| Measurement Range | 35–130 dB (A), 40–130 dB (C) |
| Frequency Range | 20 Hz – 12.5 kHz |
| Display | 3.5-digit LCD, 0.1 dB resolution, ~1 update/s |
| Time Weighting | Fast (F), Max Hold |
| Range Selection | Low (35–100 dB), High (65–130 dB) |
| Power | 9 V alkaline battery (DC 7–9 V) |
| AC Output | ≤2 Vrms, 600 Ω |
| DC Output | 0.3–1.3 V (0.1 V/10 dB), 1 MΩ load |
| Dimensions | 246 × 70 × 30 mm |
| Mass | 260 g (incl. battery) |
| Calibration | Compatible with HS6020 (94 dB @ 1 kHz)] |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Domestic |
| Model | HS5633T |
| Pricing | Upon Request |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Domestic (China) |
| Model | HS5660A |
| Pricing | Upon Request |
| Measurement Range | 30–138 dB(A), 40–138 dB(C), 45–138 dB(Linear) |
| Frequency Range | 10 Hz – 20 kHz |
| Frequency Weighting | A, C, Linear |
| Detector | True RMS & Peak |
| Time Weighting | Fast (F), Slow (S), Impulse (I) |
| Overload Indicator | +10 ±0.5 dB Full Scale |
| Power Supply | 4 × 1.5 V LR20 batteries or AC adapter (220 V) |
| Built-in Calibration Tone | 1000 Hz sine wave |
| Output | AC/DC analog outputs |
| Dimensions | 290 × 106 × 65 mm |
| Compliance | JJG 188–2002 (China National Verification Regulation), IEC 61672-1:2013 Class 1 |
| Key | Measurement Range (A-weighted) Low Mode: 22–135 dB(A) |
|---|---|
| High Mode | 55–165 dB(A) |
| Frequency Range | 20 Hz – 20 kHz |
| Weighting Networks | A, C, and Linear (F) |
| Detector Types | True RMS and Peak |
| Time Weightings | Fast, Slow, Impulse |
| Power Supply | 6 V DC (4 × 1.5 V alkaline cells) or external AC/DC adapter |
| Built-in Calibration Tone | 1000 Hz sine wave |
| Output Options | AC and DC analog outputs |
| Dimensions | 290 × 106 × 65 mm |
| Compliance | JJG 188–2002 (Class 1), IEC 61672-1:2013 (Class 1) |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | HS5661+ |
| Price | Upon Request |
| Microphone | 1/2″ (12.7 mm) Class 1 Measurement Condenser Microphone |
| Frequency Weighting | A- and C-weighting per IEC 61672 |
| Time Weighting | Fast (F), Slow (S) |
| Detector | True RMS with Peak Factor ≥10 |
| Accuracy Class | Compliant with IEC 61672-1:2013 and GB/T 3785.1–2010 Class 1 |
| Range Control | Manual, 4-step linear range selection |
| Dynamic Range per Range | >60 dB |
| Measurement Ranges | 25–80 dB, 40–100 dB, 60–120 dB, 80–140 dB (re 20 µPa) |
| Display | Large backlit dynamic LCD with analog bar graph |
| Output Interfaces | AC output, RS-232 serial interface |
| Calibration | Compatible with Class 1 acoustic calibrators (e.g., 1 kHz, 94 dB or 114 dB) and pistonphones |
| Power Supply | 4×AA (LR6) alkaline batteries (24 h typical operation) |
| Dimensions (L×W×H) | 230 × 72 × 30 mm |
| Mass | 300 g (including batteries) |
| Operating Temperature | –10 °C to +50 °C |
| Environmental Rating | IP54-rated enclosure (dust- and splash-resistant) |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China-made) |
| Model | HS5661A |
| Pricing | Available Upon Request |
| Microphone | 1/2″ (12.7 mm) Prepolarized Condenser |
| Frequency Weighting | A- and C-weighting |
| Time Weighting | Fast (F), Slow (S), Impulse (I) |
| Detector | True RMS with Peak Factor ≥10 |
| Compliance | IEC 61672-1:2013 Class 1 & GB/T 3785.1–2010 Type 1 |
| Range Control | Manual, 3-range switchable |
| Dynamic Range per Range | >60 dB |
| Measurement Ranges | 20–90 dB, 50–110 dB, 70–130 dB (re 20 µPa) |
| Display | Large-backlight LCD with analog bar graph and real-time L<sub>A</sub>, L<sub>C</sub>, L<sub>peak</sub> indication |
| Output Interfaces | AC output (rms), RS-232 serial interface |
| Calibration | Compatible with Class 1 acoustic calibrators (e.g., 1 kHz, 94 dB or 114 dB) and pistonphones |
| Power Supply | 4×AA (LR6) alkaline batteries (24 h typical operation) |
| Dimensions (L×W×H) | 230 × 72 × 30 mm |
| Mass | 300 g (including batteries) |
| Operating Temperature | –10 °C to +50 °C |
| Enclosure Material | ABS engineering plastic |
| Connectivity | RS-232 enables remote control, synchronized multi-unit networked acquisition, and PC-based data logging |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Country of Origin | PRC |
| Model | HS5661B |
| Pricing | Available Upon Request |
| Microphone | 1/2″ (12.7 mm) Prepolarized Condenser |
| Frequency Weighting | A- and C-weighting |
| Time Weighting | Fast (F), Slow (S) |
| Detector | True RMS with Peak Factor ≥10 |
| Accuracy Class | IEC 61672-1:2013 / GB/T 3785.1–2010 Class 1 |
| Range Control | Manual, 3-step |
| Dynamic Range per Range | >60 dB |
| Measurement Ranges | 60–120 dB, 80–140 dB, 100–160 dB (re 20 µPa) |
| Display | Large Backlit LCD with Analog Bar Graph & Instantaneous Leq/Lmax/Lmin |
| Output Interfaces | AC Line Output, RS-232 Serial Port |
| Calibration | Compatible with Class 1 Acoustic Calibrators (e.g., 94 dB/114 dB @ 1 kHz) or Pistonphones |
| Power Supply | 4×LR6 (AA) Alkaline Batteries (24 h typical), Optional 6 V DC / 100 mA External Adapter |
| Dimensions (L×W×H) | 230 × 72 × 30 mm |
| Mass | 300 g (incl. batteries) |
| Operating Temperature | −10 °C to +50 °C |
| Compliance | Fully compliant with IEC 61672-1 Class 1 requirements for field and laboratory use |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | HS5670B |
| Pricing | Available Upon Request |
| Sound Pressure Level Range | 25–135 dB(A), 35–135 dB(C), 45–135 dB(Lin) |
| Frequency Weighting | A, C, and Linear (Lin) |
| Frequency Response | 10 Hz – 20 kHz |
| Time Weighting | Fast (F), Slow (S), Max Hold |
| Measurement Functions | Leq, LAE, SD, Lmin, L95, L90, L50, L10, L5, Lmax, T60, Lepn |
| Spectral Analysis | 1/1-octave & 1/3-octave (with external filter set) |
| Display | 40 mm × 70 mm LCD, 4-digit resolution, 0.1 dB step |
| Data Output | RS232C serial interface, AC/DC analog outputs, external power input |
| Measurement Duration Options | Manual, 10 s, 1–30 min, 1–24 h |
| Real-time Clock | Year/Month/Day/Hour/Minute/Second |
| Compliance | IEC 60804:2000 & GB/T 17181–1997 Class 1 |
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | HS5671B |
| Pricing | Available Upon Request |
| Origin | China |
|---|---|
| Manufacturer Type | Distributor |
| Model | HS6288B |
| Price | USD 1,390 (FOB) |
| Frequency Range | 31.5 Hz – 8 kHz |
| Sound Pressure Level Range | 35–130 dB(A), 40–130 dB (Linear) |
| Self-Noise | <20 dB(A) |
| Time Weighting | Fast (F), Slow (S), Max Hold |
| Measurement Functions | Leq, LAE, LN (L10/L50/L90), Lmin, Lmax, SD, Ld, Ln, Ldn |
| Measurement Durations | Manual trigger, 10 s, 1 min, 5 min, 10 min, 20 min, 1 h, 8 h, 24 h, and full-hour synchronized logging |
| Display | 54 × 42 mm LCD with analog bar graph, real-time time stamp, measurement mode indicator, and 1/1-octave center frequency readout |
| Interface | RS-232 serial port for PC connectivity and data export |
| Standard Accessories | HS6288B(D) main unit, 4784A thermal printer (with charger), mounting bracket, software CD, thermal paper roll, 18″ protective carrying case, windscreen, screwdriver |
| Optional Accessories | 5 m / 10 m extension cables, Class 1 acoustic calibrator (e.g., HS6020) |