Lcd digital display sound

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Digital Noise Sound Level dB Meter Decibel This digital meter is a multifunction sound level meter designed to accurately measure environmental noise, such as the noise from mechanic, vehicle, ship, loudness of computer fans and other noise with +-2 dB accuracy in decibels (dB). This unit was designed according to the IEC651 TYPER2 & ANSI S1.4 TYPE2 for sound level meters. Instantaneous sound measure function. With two equivalent weighted sound pressure levels, A and C. Fast & Slow dynamic characteristic modes. AC and DC signed output for frequency analyzer level recorder, FFT analyzer, graphic recorder etc. Features: * Conformed to the IEC 651 Type 2 and ANSI S1.4 Type 2 set standard * Wide Measuring Range: dB * With 2 equivalent weighted sound pressure levels A and C * Fast and Slow dynamic characteristic modes * Bar graph indication for Sound Level Range * Maximum hold function * Large LCD screen with 4 digits reading * MAX/MIN quasi-analog bar indicator * Fast & Slow response selectable * Low battery indicator * * * Monitor the sound levels from traffic noise, alarm systems and workplace machinery Specification: * Accuracy: +-2 dB * Frequency Range: 31.5 Hz to 8.5k Hz * Linearity Range: 50dB * Measuring Level: dBA, dBC * Frequency Weighting: A, C * Digital Display: 4 digits * Resolution: 0.1dB * Display: 0.5 secretary * Analog Bar Graph: 50dB scale at 1dB step for monitoring current sound pressure level display period of 50mS * Overload indication: Under indicate less than lower limit of the range * AC output: Vrms at FS output impedance approx 600 * DC output: 10 mV / dB output impedance approx 100 * Dynamic Characteristic (Time weighting): FAST (high speed) / SLOW (low speed) * Microphone: 1/2 inch electret condenser microphone * Max: Maximum hold * Power Supply: 9V 6F22 battery(not included) or DC 9V 100mA * Operating Environment: 0¿¿C to 40¿¿C, 10% to 70% RH * Storage Environment: -10¿¿C to 50¿¿C, 10% to 80% RH * Dimensions: 235 x 70 x 30 mm (LxWxH)   rrd

LCD Digital Laser Tachometer Accuracy 0.1RPM Electronic Photo Tachometer 2.5~99 Package weight: 0.23 kg Features: 1, The tachometer uses microcomputer(CPU) technique; photoelectric technology, anti-jamming technique and junction laser technique for noncontact measurement of rotation speed(RPM), 2,Wide measuring range and high resolution 3,Large screen LCD display provides clear reading 4,Automatically save max, min and last value, also save 96 set of continuous data(the tachometer starts to store data after refreshing measuring data) 5,Low battery voltage indication 6,Smooth housing design, comfortable to hold and use 7,The instrument is delicate and rugged, It uses the durable, long-lasting components and a strong, light weight ABS plastic housing Specification: -5 digits 18mm(0.6’’)LCD -Accuracy: ±(0.05%+1digit) -Sampling time:0.5sec(over 120RPM) -Range Select: Auto-Switch -Memory: Max. value, Min value, Last value -Measuring range:2.5~99,999RPM -Resolution: 0.1RPM(2.5~999.9RPM), 1RPM(over 1000RPM) -Detecting Distance: 50~500mm -Power:3x1.5v AA battery (not included) -Time base: 6MHz Quartz crystal -Time base accuracy: 10x10-6(0-500C) -Power consumption: Approx 40mA -Dimension: 160Lx72wx37H(mm)(SM2234A) Package includes: 1 x Tachometer 1 x English user manual 2 x reflective strip Details pictures: Click here for more deals LCD Digital Laser Tachometer Accuracy 0.1RPM Electronic Photo Tachometer 2.5~99 LCD Digital Laser Tachometer Accuracy 0.1RPM Electronic Photo Tachometer 2.5~99

Description:   LCD Digital Manometer Differential Air Pressure Meter Gauge Tool ±2Psi ±13.79kPa   Features:    - Several scales & units: inH2O, psi, bar, mbar, kPa, inHg, mmHg, ozin2, FtH2O, cmH2O, kgcm2. - High accuracy ±0.3% in full scale. - Measuring ranges ±13.79 kPa / ±2 psi / ±55.4 H2O. - Large LCD with back-light. - Zero adjust & offset functions. - MAX/MIN/AVG values with relative time stamps. - Error codes for out of range indication. - Data Hold, Low battery indication,Auto power off (can be disabled).   Specification:   Display: Dual LCD Accuracy: ±0.3% FSO (25°C) Repeatability: ±0.2% (Max ±0.5% FSO) Linearity/Hysteresis: ±0.29% FSO Maximum Pressure: 10psi Response Time: 0.5 second typical Low Battery Indicator: Yes Over Range Indicator: Err.1 Under Range Indicator: Err.2 Operating Conditions: 32 to 122°F(0 to 55°C) Storage Conditions: 14 to 140°F(-1 to 60°C) Power Supply: 1 x 9V Battery (not included) Size:160*50*30 mm/6.30*1.97*1.18"   Specifications           Function Range Resolution Function Range Resolution InH2O ±55.40 0.01 ozin² ±32.00 0.01 Psi ±2.000 0.001 FtH2O ±4.614 0.001 Mbar ±137.8 0.1 cmH2O ±140.6 0.1 kPa ±13.79 0.01 Kgcm² ±0.140 0.001 inHg ±4.07 0.001 Bar ±0.137 0.001 mmHg ±103.4 0.1       Package includes:    1 x Manometer 1 x Soft pouch 1 x 1/8” MPT x 1/8” Barb Access Fitting 2 pairs of tubing 1 x Manual   Details pictures:   

Feature: Upgraded protection against reverse inverter. Aerospace grade silence technology,smart fan with energy saving. Energry saving control microcomputer,smart power starting. Specification: Type:solar inverter Output voltage:220 V Input voltage:DC12V Product certification: CE Supplies:2200W of AC power Inverter efficiency:90 (%) Voltage regulation rate:90 (%) Multiple security: USB 5V output Over current protection Battery back protection Over temperature protection Output short-circuit protection Under voltage protection Overload protection Package included: 1xCar Power Inverter 2xConnecting cable More details:

  Digital Multimeter with LCD display DT-9205A digital multimeter 9 v battery included Function Range Accuracy  DC Voltage 200mV-1000V ±(1.5%+5dgt)  AC Voltage 200mV-750V ±(2.0%+5dgt)  DC Current 2mA-20A ±(2.0%+5dgt)  AC Current 2mA-20A ±(2.5%+5dgt)  Resistance 200Ω-200MΩ ±(2.0%+5dgt)  Capacitance 20nF-200μF ±(3.0%+5dgt)  Diode Test Yes  Transistor Test Yes  Continuity Buzzer Yes  Data Hold Yes  Power Supply 9V Battery 6F22  Maximum Display 1999  Product Net Weight 300g  Products Size 191×89×35mm Pics for illustrative purpose only may vary sometimes from the actual product E &.OE   100% safe and secure to buy. we supply quality products only. Nationwide delivery

The pressure gauge with LCD display, with clear, backlight, switch, unit switch, low voltage alarm and other functions, the operation is simple, easy to install.   Features: Units change. Zero clearing. Open the backlight. Pressure calibration.   Specification: Pressure Range: 0-250BAR/25Mpa/3600PSI Accuracy: 0.4%FS Long-term Stability: 0.4%FS/year Overload capacity: Supply: 3V (two triple A battery) Battery life: 12-24 months Samping frequency: 2T/S Display: 4 digit LCD Backlight color: White Measurement medium: Gas/Water/Oil Working Temperature: -20¿¿¿-70¿¿¿ Date retention: EEPROM Shell: 304SS Acc: 1% Protection Class: IP65 Connector: NPT1/4" Size:2 00x66mm   Package includeds: 1 x Digital Pressure Gauge 1 x English Manual   Details pictures:

Description: Digital Food Oven Thermometer Kitchen Timer With Silver Probe Feature: 1.Large easy-read LCD triple screen display with thermometer, timer and 12/24hr clock. 2.Simple set the desired temperature, insert the stainless steel probe into the meat,close the oven door and wait for the loud beep. 3.Probe comes attached with a 1.2 metre stainless steel, oven safe braided lead. 4.Unit has a clip feature and built-in flip stand to balance firmly on any worktop. Specification: Material: ABS Size: 14.3 x 7 x 1.8 cm Temperature can be measured in fahrenheit or celsius: 0°C to 300°C. Get professional results every time, simply insert the probe into the meat and set the desired temperature for cooking your dish. The device will alert you when the target temperature is in range without having to open the oven door. Package includes: 1 x Digital Food Thermometer 1 x Probe comes attached with braided rope 1 x English manual Details pictures: