Sound Measurement - Page 5

Manufacturer: Extech Brand: Extech Model: 407764-EXT

science-lab-safety-supplies

Manufacturer: DROK Brand: DROK Model: DR-US080084 Color: Black AS1424

Key Operation: Short press: M ---mode switching                   ▲--- increase brightness                   ▼---decrease brightness (recommended brightness value 2-4) M (keep pressing) + ▲ (short press)---increase spectrum speed M (keep pressing) + ▼ (short press)---decrease spectrum speed (recommended speed 3-4) ▲ (long press)---switch between LIN (line input) and MIC (microphone input) ▼ (long press)---switch between L (low gain) and H (high gain) (the best is L by default, can choose H for car spectrum MIC input) NOTE: the setting values need to maintain 30 seconds before they can be automatically saved.   Connection: Audio terminal input adopts 3.5mm male headphones, connect it to computer headphone output interface via the audio branch, the other end of the branch connects external audio equipment. Please check whether the audio cable or branch has good contact if the audio has noise or the spectrum has background noise under mute and MIC off mode when using.   Potentiometer Function: Input adjustment potentiometer: for adjusting the input signal, for example, the input signal can be attenuated if it is too strong,  or adjust this potentiometer to shield some equipment which have strong background noise. Spectrum display amplitude potentiometer: for adjusting the maximum display amplitude after AGC (Automatic Gain) process. After setting, the automatic gain will take this setting value as the maximum amplitude to adjust automatically.(turning to the end can turn off AGC function if you don't need it) Package Includes: 1 x AS1424 Music Spectrum

Manufacturer: LONN Brand: LONN Model: SL4201

i.Safety Information Please read the following safety information before attempting to operate the meter. Environment Condition 1.Altitude up to 2000 meters 2.Relative humidity 75% max 3.Operation temperature from 0 - 40℃ Maintenance and Cleaning 1.Repairs or calibrations what is not covered in the manual shouldbe performed by professional person only. 2.Periodically wipe the case with a dry cloth.Do not use abrasives or solvents on this instrument. ii.specification、 Frequency range: 31.5Hz - 8KHz Measuring range: (28)30dB - 130dB Frequency Weighting: A/C Microphone: 1/2 inch polarization capacitance microphone Digital Display: 4digit LCD Resolution:0.1 dB Display Update: 2 times/sec Time Weighting: FAST 125ms SLOW 1 second Measuring ranges: Range 1: (28)30dB - 70dB Range 2: 60dB -100dB Range 3: 90dB - 130dB Accuracy: ±1.5dB(reference conditions 94dB@1kHz) Dynamic range: 40dB Overflow indicator: "OVER" will be displayed when over range, display "OL" when overflow the upper range more than 5dB. "UNDER" will be displayed when under range, display "LO" when under the lower range more than 5dB or under 28dB. MAX hold: "MAX" Data storage: 60000 samples Interface: USB interface Power: One 9V battery Power Life: Approximately 70 hours Operation Environment: 0 - 40°C(32 to 104°F) 10 -75%RH Storage Environment: -10 -50°C(14 - 122°F) 10 -80%RH Dimensions: 185(L)*65(W)*35(H)mm Weight: 155g(including battery) Accessories: instructionmanual, USB cable and driver disk Please note that because of transportation restrictions,our products may not distribute the battery!

Manufacturer: Landtek Brand: Landtek

Features -Sound Pressure Level with 94 dB and 114 dB -High Accuracy with ¡Ó0.3 db -Generates standard levels and frequencies -Low influence of static pressure -Sensitivity calibration of microphones -Designed for 1" and 1/2" microphones -Adaptable to 1.5" microphone size -Supplied with Instruction Manual and batteries -IEC942 Class I standard compliant Specifications -Sound Pressure Level: 94 dB and 114 dB -Accuracy: ¡Ó0.3 db (20 ?C, 760 mm Hg) -Frequency: 1000 ¡Ó0.1% Hz (allows calibration with A,B,C or D weighting networks or linear) -Design For: 1" and 1/2" microphones -Operating Temperature range: -10 ~ 50 ?C (14 ~ 122 ?F) -Storage Temperature: -40 ~ 65 ?C (-40 ~ 149 ?F) -Temperature coefficient: 0 to 0.01 dB/?C -Altitude Effects: approx. 0.1 dB decrease for each 2000 feet increase in altitude from the sea -level to 12,000 feet elevation or comparable atmospheric pressure change (approx. every 50 mm of Hg decrease) -Power Supply: 2 x 9v transistor batteries NEDA 1604. Burgess 2U6 or equivalent. -Battery life: approx. 100 hours -Standard: IEC942 Class I -Dimension: approx. 138 (L) x 48 (W) x 48 (D) mm (5.43 x 1.89 x 1.89 inch) -Weight: approx. 250 g (8.82 oz) (battery included) One Set Included -1 x Sound Level Calibrator -1 x 9V Battery (installed) -1 x Carrying Pouch -1 x Instruction Manual -Standard Factory Package

Manufacturer: Ruby Electronics Brand: Ruby Electronics Model: SC-05 Color: Gray

This is a brand new CEM SC-05 industrial sound level meter calibrator. This device is designed to calibrate sound meters with 1/2" and 1/4" microphone. This calibrator complies with IEC 942 Class 2 standard. Its compact size makes the device very easy to carry and handle. Ideally, the sound meter should be calibrated once a year.

Manufacturer: B&K Precision Corporation Brand: B&K Precision Model: 732A

Whether you are testing for OSHA compliance, quieting equipment, or monitoring the roar of a stadium crowd, B and K precision's sound level meters can get the job done. The model 732A sound level meter provides 30 to 130 dB capability in three convenient measurement ranges low, med and hi with an accuracy of +/-1.5 dB. The meter meets the IEC 651 Type II and includes frequency weighting A and C and fast and slow time weighting. Two auxiliary ports provide either AC output, 1Vrms full scale, or DC output, 10mV /dB. With the model 732A, B and K Precision can meet all your sound testing needs. RS-232 Interface. Bargraph. MAX/MIN function. Auto Ranging (30 to 130dB). Resolution 0.1dB. Level Range Display. AC/DC Signal Output. Auto Power Off. Backlit LCD. 1 year warranty.

Manufacturer: Testo AG Brand: Testo Model: 400520 8501

Testo NIST light certificate for sound level meters.

Manufacturer: Sper Scientific Brand: Sper Scientific Model: 840028

Advanced features| Covers 30 ~ 130 dB in the A scale and 35 ~ 130 dB in the C scale with a resolution of 0.1 dB and an accuracy of ±1.5 dB. Meets ANSI S1.4 and IEC 651 Type 2 standards, and includes A & C decibel frequency weighting scales, fast or slow response, AC or DC output, low battery indicator, peak function and can be calibrated in compliance with OSHA using Acoustical Calibrator 850016. Contains many advanced features including: An even larger LCD display with an analog bar graph, auto-ranging, min/max functions and a USB computer interface. Another special function allows you to accurately measure equipment noise in the presence of high background noise. Comes ready to use with a windscreen, 9V battery, instructions, and a hard shell carrying case. N.I.S.T. traceable certificate of calibration available. Dimensions: 11½" × 3" × 1½" (292 × 76 × 38 mm) Weight: 9.9 oz (281 g) .

Manufacturer: Extech Brand: Extech Model: 40705X

CABLE, ANALOG OUTPUT FOR SOUND LEVEL METERS

Manufacturer: xUmp.com Brand: xUmp.com

• Measuring Range: 30~130dBa • Accuracy: ±1.5dB • Frequency Response: 31.5Hz~8KHz • Resolution: 0.1dB • Working Temperature/Humidity: 0~40°C, 10~80%RH • Storage Temperature/Humidity: -10~60°C, 0~90%RH • Power Source: 3 x 1.5V AAA batteries (not included)