The Amprobe® SM-CAL1 is a sound meter calibrator with two output levels of 94 dB and 114 dB. The calibrator generates these fixed sound level signals for calibration of sound level meters. The unit ships with a 1/2 in adapter installed to accommodate sound meters and microphones with 1/2 Dia.

Amprobe® Sound Meter Calibrator, 1 kHz, 94/114 dB Sound Pressure, For Use With: 1/2 in Microphone and All Sound Meters, +/-0.5 dB Distortion, 32 to 104 deg F

• Two output levels of 94 dB and 114 dB
• Fits 1/2 in microphones
• Easy one handed operation
• Low battery indication
• Maintains accuracy of a sound level meter