Compare instruments
Up to 4 instruments of the same type, every published specification side by side. Rows where the values differ are tinted. A blank cell means the manufacturer does not publish that value.
Comparing 3 handheld sound level meters. Back to the category table.
| Specification | CEL-24xCasella | CEL-63xCasella | CEL-620Casella |
|---|---|---|---|
| Status | Current | Current | Current |
| Verified on | |||
| Standards and class | |||
| IEC 61672-1 class (differs) | — | Class 1 | Class 1 |
| Standards (differs) | IEC 61672, IEC 60651, ANSI S1.4, IEC 60804 and ANSI S1.43 (CEL-246) | IEC 61672:2002 class 1 or class 2, ANSI S1.4-1983 type 1 or type 2, IEC 61260 class 0 (filters), ANSI S1.43-1996 | IEC 61672:2013 class 1 or class 2, ANSI S1.4-1983 (R2006), ANSI S1.43-1997 (R2007), IEC 61260 class 1 (B models), ANSI S1.11-2004 (B models) |
| Measurement | |||
| Channels | 1 | 1 | 1 |
| Measurement range (differs) | 30 to 100 or 60 to 130 dB, selectable | 20 to 140 dB RMS | 20 to 140 dB RMS, single range |
| Peak range (differs) | — | up to 143.3 dB | up to 143.0 dB |
| Frequency range (differs) | — | 16 Hz to 16 kHz (1/1 octave, B and C); 12.5 Hz to 20 kHz (1/3 octave, C) | — |
| Frequency weightings (differs) | A, C | A, C, Z | A, C, Z |
| Time weightings | F, S, I | F, S, I | F, S, I |
| Simultaneous weightings (differs) | — | Yes | Yes |
| Parameters (differs) | SPL, Lmax, Leq (CEL-246), Lavg (CEL-246) | LXY, LXYmax, LXYmin, LXeq, LXpeak, Lavg, LC-LA, LXIeq, LTM3, LTM5, LAE, Ln (5 values, CEL-633) | LXY, LXYmax, LXYmin, LXeq, LXpeak, Lavg, LC-LA, LXIeq, LTM3, LTM5, LAE |
| Dosimetry | No | No | No |
| Exchange rates (differs) | — | 3 dB, 4 dB, 5 dB | 3 dB, 4 dB, 5 dB |
| Analysis | |||
| Octave bands (differs) | None | 1/1 and 1/3 | 1/1 |
| Octave band filter class (differs) | — | class 0 (IEC 61260); 1/1 octave on B and C, 1/3 octave on C | class 1 (IEC 61260), 11 bands 16 Hz to 16 kHz (B models) |
| Reverberation time | No | No | No |
| Building acoustics | No | No | No |
| Audio recording (differs) | No | Yes | Yes |
| Logging and data | |||
| Shortest logging interval (differs) | 1 s (CEL-246) | 100 ms (profile); 10 ms event profiling on CEL-633 | 1 s |
| Memory (differs) | 419,000 data points (CEL-246) | 2 GB; 999 runs with 999 events per run; 10 h audio high quality or 60 h low quality | 999 runs of up to 24 h; 33 h of audio notes; about 1 year at 1 s interval |
| Hardware | |||
| Microphone (differs) | — | 1/2" CEL-251 50 mV/Pa (class 1) or CEL-252 30 mV/Pa (class 2); MIC1 high-range microphone to 165 dB optional | 1/2" CEL-251 (class 1) or CEL-252 (class 2) |
| Detachable preamplifier (differs) | No | Yes | Yes |
| Display (differs) | high-resolution display with time-history graph (resolution not stated) | colour TFT | 320 x 240 colour TFT, backlit |
| Battery (differs) | 3 x AA alkaline or rechargeable; 5 V via USB | 3 x AA alkaline or rechargeable; external 9 to 14 V DC | 3 x AA alkaline or rechargeable; external 9 to 14 V DC |
| Battery life (differs) | 35 h | 15 h | 20 h |
| Weight (differs) | 245 g | 332 g | 295 g |
| Dimensions (mm) (differs) | 72 x 212 x 31 | 230 x 72 x 31 (with preamplifier and microphone) | 72 x 229 x 31 |
| Operating temperature (°C) (differs) | 0 to 40 | -10 to 50 (class 1); 0 to 40 (class 2) | -10 to 50 (class 1); 0 to 40 (class 2) |
| Connectivity and software | |||
| Connectivity (differs) | USB 2.0 Mini-B, AC output, DC output (option) | USB (CMC51 cable), AC output, DC output | USB 2.0 Mini-B (mass storage) |
| Software (differs) | dB24 (CEL-6842) | Casella Insight | Casella Insight |