Digital Sound Level Meter Calibrator 94dB & 114dB for 1/2'' and 1'' inch Microphone, Professional Noise Decibel Calibration Tool Measurement Accuracy Check (Digital Sound Calibrator)

The calibrator generates these fixed sound level signals for calibration of sound level meters. This model works with any digital sound level meter. The unit ships with a ½" adaptor installed to accommodate sound meters and microphones with 1" or 1/2" microsphone. Features To correct for atmospheric pressure in areas of high altitude the transducer diaphragm It has two output levels of 94 dB and 114 dB. Calibrated to produce 94dB at sea level. For each 2000ft of elevation sea ND-9 produces 0.1dB less than the 94dB rating. Specifications Output Sound Level: 94db & 114db Accuracy: ±0.3db(20°C, 760mm Hg) Frequency: 1000±0.1%Hz (allows calibration with A,B,C or D weighting networks or linear) Temp. range: -10~50°C (14~122 °F) Storage (with battery removed) -40~65°C (-40 ~ 149 °F) Extremely low influence of static pressure Temp.coefficient : 0 ~ 0.01dB/°C Power Supply: 9v Battery Battery life approx.100 hours Package Size: 17cm x 9cm x 6cm Package Weight: 0.39kg Set Includes 1 x Sound Level Meters Calibrator 1 x 9V Battery installed (FREE) 1 x English Instruction Manual Standard factory packaging box  

 Features: -Measurement Range: 30dBA - 130dBA  -Accuracy Within +/-1.5dB; Resolution: 0.1dBA  -Large LCD screen  display; 10 minutes auto power off  -Data hold function  -LCD backlight display -Max/Min sound level measurement  - Uses 3*AAA Battery ¨C INCLUDED  - 1 Year warranty Specification： -Frequency range: 31.5Hz ¨C 8kHz  -Range: 30-130dBA  -Microphone: 1/2 inch electric condenser microphone  -Calibration: Electrical calibration with the internal oscillator  -Display: LCD 3

The Triplett SoniChek (TSC-MC1) is a compact sound level meter with 40 to 130dB measurement range with C weighting and a fast response time. Its hand-sized design with rubberized over-molded housing provides impact and drop resistance in a sleek ergonomic design. Features include a large auto backlit LCD display Min/Max, Auto power off, and tripod mount. The C weighting makes the SoniChek ideal for testing sound levels in home theaters, music performances, car audio and other areas requiring a b

TechCode Mini True Wireless Bluetooth Earbuds Stereo Wireless Noise Cancelling Headphones Hans-free Headset Built-in MicrophoneCompatible With:All Bluetooth devices, likes iPhone XS Max/ XS/ XR/ X/ 8 Plus/ 8/ 7 Plus/ 7/ 6S Plus/ 6S/ 6 Plus/ 6/SE, Samsung Galaxy Note9/ S9/S9 Plus/ S8/ S8 Plus/ Note 8/ Note 8 Plus/ S7, iPads, Tablet PC or more.Specification:Capacity: 50mAhBluetooth Version: 4.2Frequency: 20Hz-20kHzWorking Range: about 10 metersCalling Time: about 3-5 hoursMusic Time: about 3-5 hou

This data logging sound level meter has the ability to record samples on internal memory and keep track of registered readings with a time and date stamp. The R8080 features user selectable sampling rates and the option to track live measurements via the included PC interface software. Features; High accuracy of ±1.4 dB meets Type 2 standards, Triple range measurement (60dB dynamic range), A & C frequency weighting, Fast & Slow time weighting, Record up to 64,000 datapoints and keep track with