The Galaxy Audio CM-150 Check Mate Sound Pressure Level Meter is small, and easily fits your hand when measuring the pressure level of sound waves in any acoustic environment. The backlit meter is easy to read in any environment, and it's especially useful for FOH guys. The CM-150 meter has an electret condenser microphone, an easy-to-use interface, a graph indication, MAX/MIN function, level range display, AC signal output, auto ranging (30 ~ 130dB), and readings in 0.1dB steps. The meter's frequency range is 31.5Hz to 8KHz. Get up to 70 hours of operation from one 9V battery. An auto power off function prolongs battery life. Galaxy Audio includes a carrying case, a calibration screwdriver, a 9V battery, and a windscreen with the CM-150 Check Mate SPL Meter.

 

Electret condenser microphone 

MAX/MIN function 

Level range display 

AC signal output 

Resolution: 0.1dB 

Accuracy: ±1.5dB (ref 94dB @1KHz) 

Level Range: Lo = 30-80dB; Med = 50-100dB; Hi = 80-130dB 

Frequency weighting: A, C 

Fast (125mS) or slow (1 sec.) time weighting 

AC signal output 

Dynamic range: 50dB 

Frequency range: 31.5Hz to 8KHz 

Digital LCD Display: 4 Digits, resolution: 0.1dB 

Analog Display: 50 segment bar graph 

Resolution: 1dB 

AC Adapter: Voltage 9 VDC (8-15VDC Max) 

Battery Life: 50 hours 

Carrying case 

Calibration screwdriver 

9V battery 

Windscreen 

3.5mm plug