Now you can easily and accurately monitor the Sound Pressure Level (loudness) of your services, concerts, etc. Weighing only half a pound, the Check Mate CM-140 is a mini-sized, low cost, high performance sound pressure level meter with a built-in electret condenser microphone. The easy-to read digital display show resolution to 0.1 dB, can be set for multiple ranges and includes a MAX/MIN function. It will operate for up to 50 hours on an alkaline 9V Battery (included) and it comes complete with owner's manual and windscreen. The model CM140 is accurate to ±1.5 dB and meets IEC 651 Type II making it suitable for applications where greater accuracy is required. |