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                                                  | 2310 SL   Sound Level Meter |  
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                                                  | FEATURES |  
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                                                  |  Max. & Min. function. |  
                                                  |  Over & Under range indication. |  
                                                  |  4-digit LCD display with bar graph. |  
                                                  |  Frequency weighting characteristic for 2 times per second. |  
                                                  |  AC signal output. |  
                                                  |  Low battery indication. |  
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                                                  | SPECIFICATIONS |  
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                                                  | Measuring Ranges | Lo : 32dB ~ 80dB |  
                                                  |  | Med : 50dB ~ 100dB |  
                                                  |  | Hi : 80dB ~ 130dB |  
                                                  | Accuracy | +/- 1.5dB (at Reference Range) |  
                                                  | Reference Sound Level & requency | 94dB, 1k Hz |  
                                                  | Resolution | 0.1dB |  
                                                  | Detector-Indicator Characteristic | Fast : 125ms, Slow : 1s |  
                                                  | Analog Signal Output | AC 1Vrms for each range |  
                                                  | Dimensions | 235(L) x 58.4(W) x 34(D)mm |  
                                                  | Weight (prox) | 220g (battery included) |  
                                                  | Power Source | 9V (6F22.006P) x 1 battery |  
                                                  | Accessories | Instruction manual |  
                                                  |  | Adjusting bar |  
                                                  |  | Battery |  
                                                  |  | Sponge cover |  
                                                  |  | Heavy-duty case |  |  |