Decibel Meter Calibrator, High Precision SPL Meter Calibrator with 94dB 104dB 114dB Calibration Level, 1/2 Inch Mic Slot, 1000Hz Output, Low Battery Alert, Sound Level Calibrator for Lab Testing

✔ 【94/104/114dB Calibration Level】 The decibel meter calibrator toggles between 94, 104, and 114dB at 1000 Hz. This feature eliminates math corrections across different weighting networks (A, B,LIN, or others) to save time. ✔【1/2’’ Microphone Fit】 This sound level meter calibration tool accommodates 1/2 inch (13.2 mm) microphones. Its built-in O-ring seal blocks ambient noise to ensure repeatable accuracy during meter audits. ✔ 【Ease to Use】 Our spl meter calibrator features simple layout with one button to toggle through 3 reference levels, and another button to power on and off. Its 4 integrated LEDs use green for ready status and red for low battery. ✔【Certified Compliance】 The db meter calibrator meets strict IEC 60942:2018 Class 2 standards, allowing your calibration fully satisfy official inspection and regulatory reporting. ✔【All-Weather Stability】 This noise meter calibrator holds ±0.4dB accuracy across 0-40°C and 25-90% RH, so you can calibrate confidently anywhere from outdoor factories to indoor labs.