The Amprobe SM-20-A Sound Level Meter has been designed to meet the measurement requirements of safety Engineers, Health, Industrial safety offices and quality control in various environments. It offers two types of measurements: A weighting and C weight. The A weighting is for general noise sound level and the C weighting is for measuring sound level of acoustic material control in various environments

• Measurement of sound level
• Measurement according to frequency evaluation filters A and C, with direct display in dB
• Integrated measurement memory (data hold, MAX)
• Switchable between fast and slow response times
• Backlight
• USB interface for PC connection
• Internal data logger for 14,000 readings

The Amprobe SM-CAL1 is a sound meter calibrator with two output levels of 94dB and 114dB. The calibrator generates these fixed sound level signals for calibration of sound level meters.

• Two output levels of 94dB and 114dB
• Output frequency of 1000Hz
• Easy One handed operation
• Low battery indicator
• CE, Conforms to ANSI S1.40 – 1984 and IEC942 – 1988 Class 2
• Includes ½ inch adaptor, 9V battery and User manual

The Faithfull Sound Level Meter is a compact digital tool for recording noise levels. It can be used to measure the sound level in all kinds of environments, such as factories, schools, offices, traffic, roads etc.Features include over-range indication, Max./Min. measurement mode, data hold, low battery indication, auto power-off and more. Sound level meters are instruments designed to react to the noise much like the human ear. The measurements taken by sound level meters are compared to known standards to identify whether the noise level could have a detrimental effect on humans located near the noise source.It is supplied with a removable wind noise reducing cap, batteries and user manual.Display: 4 digits LCD with backlightFrequency Weighting: AMeasuring Range: 30 dB - 130 dBFrequency Range: 30Hz~8kHzResolution: 0.1 dBAccuracy: ±1.5 dBOver-range Indicator: "OL" appears when the measured value is higher than the upper limit of the measuring range. "LO" appears when the measured value is lower than the lower limit of the measuring range.MAX./MIN. Measurement ModeTime Weighting: FAST mode and SLOW mode Microphone: Omni-directional Condenser MicrophoneOperating Altitude: <2000m above sea levelOperating Environment: 0-40°C, 20%-30%RHStorage Environment: -10°C to 50°C, <90%RHPower: 3 x 1.5V AAA batteries (supplied)Size: 160 x 54 x 32mmWeight: approx. 110g (including battery)

The Faithfull Digital Lux / Light Meter is ideal for use in electro-optical sources, research teaching, industry inspection as well as agricultural research and illumination control. It can be used to assess and monitor indoor area light levels, such as greenhouses, warehouses and office space. This device is able to measure light from many different types of bulbs, ensuring high levels of accuracy throughout. It includes a light meter and light sensor and will work with fluorescent, metal halide, high-pressure sodium and incandescent sources. Supplied with battery, user manual and storage case.

Specification:

Range: 1-50,000 Lux in 3 ranges 2,000/20,000/50,000 LuxSampling Rate: approx. 2 times/secondSensor: Silicon photo-diode and filterEnvironment: Indoor operationAltitude: Up to 2000mCalibration: Standard incandescent lamp at 2854KPower: 1 x 9V PP3 battery (supplied)Dimensions: 192 x 67 x 44mmWeight: 198g

The Voltcraft DL-161S sound level data logger measures the sound level in decibels (dB) and meets the requirements of EN 61672-1. The unit is a Class 2 device for general field investigations such as performance measurements. Measurements range between the frequencies of 31.5Hz to 8KHz and sound levels of 30 to 130dB. Two measuring modes, two frequency filters and two time schedules can be preselected and used in any situation. The measured sound level can be displayed directly on the computer or it can be saved on the data logger for later evaluation. The measurements can be started automatically or manually. Supplied with a stand, protective cover, 2 x screws, wind protection, 2 x dowels, CD-ROM with software, operating instructions and a 3.6 V lithium battery, type 1/2 AA.

• Sound level range 30 to 130dB
• Frequency range 31.5Hz to 8kHz
• SPL resolution 0.01dB
• Dimensions 25 x 30x 140mm
• Weighs 77g

This sound level detector is a digital meter for measuring the sound level in decibels (dB). It has two ranges from 30 to 130 dB. Once the values have been detected, the momentary units/functions are displayed digitally on a large LCD (Liquid Crystal Display). The maximum value and the details shown on the display can both be stored.

The professional, extensive features of this meter are virtually unbeatable for this price range.

• A/C evaluation curves
• Time evaluation modes (fast/slow)
• Maximum value memory function
• Measuring range 30dB to 130dB A/C
• Accuracy ±2dB (1kHz)
• Fulfils the standard EN 60651 Class 3
• Supplied with wind deflector, 1x battery (9V pack) and operating instructions

This sound level detector from Voltcraft has a range of 31.5Hz to 8KHz as well as a sound level of 30dB to 130dB. The maximum value and the details shown on the display can both be stored. The sound level detectors meet the requirements of EN 60 651 (IEC651). The SL-200 has the accuracy class 2 for general field examinations (e.g. operations tests).

The values detected and the momentary units/functions are displayed digitally on a large LCD (Liquid Crystal Display). Two frequency evaluation filters (A/C) and the two time evaluations can be preselected and allow the device to be used universally.

To suppress wind noise, the device is delivered with an attachable windscreen. This does not impair correct measurement of the sound level. A 9-V block battery (type 1604A) is required for operation (included).

• A/C-switch evaluation characteristics
• Switchable time evaluation (slow / quick)
• Memory function for max. values
• Measures 30dB to 130dB
• Curves A or C
• EN 60651 class 2 and EN 61672 compliant
• Supplied with digital sound meter SL-200, case, windscreen, 1x 9V block battery (PP3 type)

The Voltcraft SL-451 Sound Level Meter and Data Logger has an unbeatable set of features. In addition to standard features, the SL-451 has a data logger and USB port. It is protected by a robust housing and moulded protective rubber case, making this device is suitable for use in tough conditions.

The device has a measurement range from 30dB to 130 dB with auto-range function. The integrated data logger lets you store up to 32 000 measurements, which can be transferred to your PC and processed using the software supplied. You can therefore easily monitor sound levels on a long-term basis.

The detachable microphone and the supplied 3m extension cable enable measurements to be carried out in hard-to-reach places. The software of the SL-451 permits measurements and analyses to DIN 15905-5 to avoid risk of hearing loss due to high noise levels from electro-acoustic equipment.

• A/C evaluation
• F/S time assessment (fast/slow)
• Min./Max.Memory
• Analog output
• Bar graph
• USB interface
• Backlit display
• Can be calibrated
• Battery and mains operation
• Measurement range from 30dB to 130dB A/C
• Accuracy ±1.4dB (1kHz)
• Supplied with Voltcraft SL-451, carrying case, wind protection, USB interface cable, VoltSoft standard edition analysis software, 1 9V battery, mains adaptor, tripod, calibrated screwdriver, 3m microphone extension cable, instructions for use

The Voltcraft SLC-100 sound level calibrator allows the simple alignment of sound level measuring devices and for testing measuring accuracy. The calibrator generates a 1kHz sinusoidal sound signal with a switchable sound level of 94 or 114dB. Microphones with a diameter of 12.7mm (0.5in) can be inserted in the calibration chamber. The specified accuracies are obtained at an atmospheric pressure of 1013hPa, an ambient temperature of 23°C and an air humidity of 65%RH. Supplied with 1 x 9V battery, case, and user manual.

• Sound level adjustable
• Sealed calibration chamber
• Conforms to IEC 60942 Class 2
• Dimensions 50 x 120 x 42mm
• Weight 278g