db sound level meter sl4201,China db sound level meter sl4201 Manufacturers, Suppliers

NHP-110S Green Popular Sound Proof Ear Muffs

Mar 31, 2013

... Popular Sound Proof Ear Muffs NRR: Noise Reduction Rating proved to be under 23 dB as ... sound sensitivity control system is only 2 milliseconds.AMPLIFICATION: Limit the extreme noise level restrictions from 80 dB to 85 dB ... wispy from 80 dB to 85 dB, in order to increase our sensitivity to sound. For example, ... journey of full, clear and directional stereo sound.COMFORTABLE: Our new special materials for ...

Supplier: Hangzhou Nimax Industry And Trade Inc.

[China Manufacturers]

4.5 meter TVRO antenna

Jun 26, 2012

1.4.5 meter antenna. 2.Satellite Receiving-only antenna 3 ... Manual and Motorized. 5.Good pricie 4.5 meter conmnication antenna serial numberTechnical parameterC-bandKu-band1Receive frequency3.7 ... °454VSWR≤1.35≤1.255Cross polarization db≥25≥306First sidelobe level(FSLL)db≤-14≤-147Envelope db52-10Igθ(D/∧)-25Igθ ... productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); 4.5 meter TVRO antenna

Supplier: Shaanxi Newstar Communication Equipment Co., Ltd.

[China Manufacturers]

Digital Teaching Lab --Sound Wave Sensor(chemistry lab apparatus)

Aug 27, 2012

... Lab --Sound Wave Sensor ZJKY 1030 Sound Wave Sensor(chemistry lab apparatus)Level 1(soundwave measurement):40dB~120dB:resolution0.1 Db;Level 2(waveform ... measurement):-2.5V~+2.5V(measurement frequency range 10Hz~400Hz);Resolution1Hz. Digital Teaching Lab --Sound Wave ... of the sensor.Measured with the unit dB, the displayed data is the sound intensity value at the position of the ...

Supplier: Beijing Weichengya Laboratory Equipment Co., Ltd.

[China Manufacturers]

Handheld Optical Power Meter

Apr 25, 2012

... test recordsUSB communication port for saved testing records downloadReference power level can be set up and storedUser self calibration functionAuto- ... dBm)-70~+6;-50~+26Uncertainty (dB)±0.15(3.5%)linearity (dB)±0.02Display resolution(dB)0.01Frequency ID(Hz)270,330 ... *90*45(250g)Standard Packages MODELINCLUDESAll 3506 ModelsS3506 Optical Power Meter, 3pcs 1.5V batteries, AC Adaptor, User Manual, Cotton ...

Supplier: Chongqing Shinebon Opto-Electronics Co., Ltd.

[China Manufacturers]

Optical power meter-fiber tester

Jan 08, 2013

... measurement(nw) 3.test relative power Optical power meter-fiber tester Functions and Features1). With calibration function ... for this meter.2). with a precise and quick measurement ... power (nw). c. to measure relative power(dB). 4).Can read the record data 5).Can ... data. 6).With a indication function of low level voltage. 7).With a adjustable time for automatic ...

Supplier: Dongguan Shom Electronic Co., Ltd.

[China Manufacturers]

SMD-085036H-03627 mini recordable sound modules

Mar 31, 2013

mini recordable sound modules 1) 3V 80mA 2730Hz 2) 8.5*8.5* ...

Supplier: Changzhou Globaltone International Trade Co., Ltd.

[China Manufacturers]

Electronic sound amplification shooting and hunting earmuff

Aug 26, 2012

... : E1631Featues:NRR21dBCut off mmediately when sound over 82dB to keep your hearing in a safe level Amplification 6 times to detect the ... and worker involved in noisy surroundingTechnics data: Frequency HZ125250500100020003150400063008000Mean Attenuation(dB).1.015.522.224.633.732.4293939.3Standard Deviation ...

Supplier: Shenzhen Vitel Electronic Co., Limited

[China Manufacturers]

Personal listen up sound amplifier best amplifier(HAP-20)

Mar 31, 2013

... tightly Increase volume gradually to avoid sudden increase in sound Convenient for watching movie, enjoying the drama, attending meeting ... 3800HzTHD at<1000Hz:≤10%>1000Hz:≤15%EQ. Input Noise Level<30dBBattery Current Drain5mARated VoltageD.C 1.5VTwo Types packages ... battery. CleanEar Mold. Increase Volume. Hearing Aid Emits Whistling Sound: Try reinserting the ear mold until fits securely. LowerVolume. ...

Supplier: Foshan Vohom Technology Co., Ltd.

[China Manufacturers]

2012 new updated 3.5 inch Handheld LCD Monitor Pro Digital Satellite Finder Signal Meter

Mar 31, 2013

... 4.factory pirce, accept OEM order Satellite Finder Meter Satellite Finder Satellite TV / TV Equipment Built-in ... 75 Ω (F)Frequency range:950MHz-2150MHz Signal level:-65dBm~-25dBmLNB Power supply:13/18V,max400mA LNB Switch ... SDRAM:16Mbyte FLASH:4Mbyte Video:MPEG-2 Main Level Rate:up to 15M bits/s Image analysis: ... 720*576,720*480 Voice patterns:single sound channel Sampling rate:32,44.1 and 48KHz ...

Supplier: Shenzhen Coolink E-Business Department

[China Manufacturers]

PG-OPM100 Optical power meter

Mar 31, 2013

for telecom testing wave length: 850/1300/1310/14901550/1625nm Measuring range:+10~-70dB Resolution:0.01dB(+5~-65dB) PG-OPM100 Optical power meter270Hz,1KHz, 2KHz Tone detectionWide dynamic range: Max to 78dBHigh resolution: 0.01dBGood accuracy: ±0.2dBInsertion loss test in dBSM or MM applicationsFC/PC and 2.5mm universal connector850nm/1300nm/1310nm/1490nm/1550nm/1625nm calibrated wavelengthsPG- ...

Supplier: Shenzhen Pioneer Goods Communication Co., Ltd.

[China Manufacturers]

Optical Power Meter,Fiber Power Meter,Optical Power Detector

Jan 29, 2013

... operate BD503 Handheld Optical Power MeterDescriptions BD503 Handheld Optical Power Meter is a self developed test instrument which is widely ... which will be easy-to-use10. Display the battery level and Warning notice is available when the battery is lowApplications1 ... 5%Standard Wavelength(nm)850,1300,1310,1490,1550,1625Resolution(dB)0.01Power Supply3pcs AAA 1.5V batteries, rechargeable batteries ...

Supplier: Shanghai B&D Technology Co., Ltd.

[China Manufacturers]

F.TRADIO water proof audio surveillance & audio monitoring, sound pickup microphone

Jan 14, 2013

... PaPolar Pattern unidirectional Dynamic Range 100dB(1KHz at Max dB SPL)Maximum Level Input 120dB SPL (1KHz,THD 1%)Impedance 600ohm (imbalance ... unidirectional electret condenser mic,within 5m range shouting distance,the sound pick-up very clear.*Strength directional design can prevent the ... ,FCC standard. F.TRADIO water proof audio surveillance & audio monitoring, sound pickup microphone

Supplier: Beijing Kuaiyu Technology Co., Ltd.

[China Manufacturers]

Ultrasonic heat meter

Mar 31, 2013

Ultrasonic heat meter Ultrasonic heat meter is used for measuring and displaying the caloric release/absorb ... time difference method* Signal is undisturbed thanks to Straight-through sound wave channel* Accuracy is uninfluenced after a certain period as ...

Supplier: Hangzhou Jingda Electronic Co., Ltd.

[China Manufacturers]

Cheapest satlink satellite finder meter ws 6905 e box satellite receiver

Sep 14, 2012

... e box satellite receiver 1.Live FTA Digital Picture and Sound 2.AV out and AV in 3.Send 5V or ... is a battery powered hand held DVB-T terrestrial alignment meter demodulating DVB-T COFDM Signal. It’s very convenient for ... range: 46MHz - 870 MHzLevel range: 40dBuV - 110dBuVLevel measurement accuracy: 2dBDigital Meter for Signal StrengthSound When Lock Signal3.5 Inch High definition ...

Supplier: Shenzhen Runrise Technology Co., Limited

[China Manufacturers]

Converter sound frequency slag system

Apr 01, 2013

... listed in the table as below: Sound Source P (w)Lp (dB)The total power and noise of Supersonic ... stream8.12×10-2 149The sound of oxygen stream ... churn and promote the pool7×10-3 95The sound of exhaust escaping5×10-941Plant noise6×10-393The ... sounds, starting from selection of sound frequency ,we can estimate the oxygen flow level of the noise according to ...

Supplier: Beijing Zhongyuantong Science And Technology Co., Ltd.

[China Manufacturers]

F02329 2012 Satlink Satellite Finder WS-6932 3.5'' LCD HD Spectrum Analyzer Satellite Finder Meter DVB-S/S2 WS 6932

May 12, 2012

... high quality SatLink WS-6932 HD Satellite Finder Meter For the charger plug,if you have special ... !Or we will ship the item according our custom! Description:Meter & Real Spectrum Analyzer & Unicable (DVB-S+S2 / ... using a USB - memory stick to transfer to the meter. Features Frequency range: 950 - 2150 MHz (DVB-S ... Display of C / N Display of signal level in dBµV Unicable SCR measurement DiSEqC 1.0 for ...

Supplier: Shenzhen Feichao Technology Co., Ltd.

[China Manufacturers]

KDE12T3 low sound generator

Oct 31, 2012

... )30003600Phase3-phasePower factor(cosφ)0.8Excitation systemSelf-excited constant voltageNoise level (7m) DB (A): 72Fuel tank capacity (L)25StructureSilentPanelOrdinaryOutput socketTwoDC12V outputTerminal postEngine ... (KG)265Dimension(L*W*H)1180×720×820 KDE12T3 low sound generator

Supplier: Wuxi Kaiao Power Machinery Co., Ltd.

[China Manufacturers]

ETCR2000+ Clamp-On Digital Ground Resistance Meter ---ISO,CE,OEM

Sep 08, 2012

... 0.01ΩData memory99 SetsAlarmThreshold Setting RangeResistance: 1-199ΩAlarm Sound and Light"Beep-beep-beep” alarm tone, Alarm Symbol ... 30 hoursRS232 Interface (Optional)The data stored in the meter are uploaded to the computer through RS232 interface and ... , Then generate report filesAccessoriesMeter: 1 piece, Test Ring: 1 Piece, Meter Suitcase: 1 Piece ( function(){ var aBigImageSrc = [ 'http://i00. ...

Supplier: Guangzhou ETCR Electronic Technology Co., Ltd.

[China Manufacturers]

MICRO PLUS SOUND AMPLIFIER (TVP5270)

Jul 09, 2012

... MICRO PLUS is a personal sound amplifier that provides up to 50 dB of sound amplification. It's very discreet and resembles a ... plus is equipped with a volume control to adjust the level to your individual needs.Input voltage:1 Battery cell (1 ... :50dB+/-6dBOutput power:5mWAmplifier frequency response:200-4000HZ MICRO PLUS SOUND AMPLIFIER (TVP5270)

Supplier: Ningbo Wealthy Import & Export Co., Ltd.

[China Manufacturers]

CF-6802 Memory sound therapy pillow

Jan 21, 2013

... ,Built in 2pcs speakers with volume control.3,Eight natural sound for relaxing.4,Applicable to MP3,MP4 and computer.5 ... , Spa Massager and Game Rocking Chair. With a 3000 square meter production base, our team works together to ensure ODM/OEM ... provide follow-up and service to customers. To bring high level customer-satisfaction and the best value for customers is what ...

Supplier: Xiamen Comfier Technology Co., Ltd.

[China Manufacturers]