Optimised for electrical contractors, this versatile Kewtech KEW320 Sound Level Meter has a measurement range of 32dB to 130dB; this is comprised of three levels each spanning approximately 60dB:
32-90dB
50-110dB
70-130dB
The Kewtech KEW320 Sound Level Meter has a measurement accuracy of ±1.4dB and a sample rate of 2 times per second. It also features a frequency range of 20Hz to 8kHz, A/C frequency weighting, and FAST/ SLOW time weighting. Comparing results from A & C weighting allows the user to measure low-frequency noise.
Measurements are viewable via the Kewtech KEW320 Sound Level Meter’s clear LCD with an analogue bar graph. Via the display, the user can also view the battery status. The Kewtech KEW320 Sound Level Meter is supplied with a 9V battery capable of providing up to 50 hours of operating time.
It features an Auto Power Off function to extend the battery life as well as manual hold for on and off power.
Key Features:
Measurement range: 32dB to 130dB across three levels (32-90dB, 50-110dB, 70-130dB)
Measurement accuracy: ±1.4dB
Sample rate: 2 times per second
Frequency range: 20Hz to 8kHz
A/C frequency weighting for versatile noise measurement
FAST/SLOW time weighting options
LCD display with analogue bar graph
Low-frequency noise measurement through A & C weighting comparison
Battery status indicator on the display
Supplied with a 9V battery providing up to 50 hours of operating time
Auto Power Off function to extend battery life
Manual hold for on and off power
Specification:
Applicable
standard IEC61672-1 Class 2
Frequency range 20Hz to 8KHz
Measuring range 32 to 130dB
Frequency
Weighting A / C
Microphone ½ inch electret
condenser microphone
Display LCD
Digital display
4 digit
0.1dB resolution
0.5 second update
Analogue display 30 segment display
2dB resolution
100mS display update
Level ranges Lo: 32 dB to 90 dB
Med: 50 dB to 110 dB
Hi: 70 dB to 130 dB
Accuracy /- 1.4dB
(ref: 94dB@1KHz)
Dynamic range 60dB
Time weighting Fast / Slow
AC Output
1mVrms at full scale
(upper limit of each range)
DC Output 10mV / dB
Over limits display
(for each range) ‘OVER’
Under limit display
(for each range) ‘UNDER’
Min / Max On dedicated button press
Power Supply 9V 006P, IEC6F22 or
NEDA 1604
Battery life Approx. 60hrs (alkaline)
Operating
temperature range
0 to 40°C
Operating humidity
range
10 to 90% RH
Operating altitude 2000m
Storage
temperature range
-10 to 60°C
Storage
humidity range 10 to 75% RH
Dimensions 258 x 55 x 25mm
Weight 185g approx..
Battery
Instruction manual
Windshield
Protective hard case
🚚 Testersmans Shipping Policy
Free Mainland GB Delivery Over £150
We offer free delivery on most mainland Great Britain orders over £150 (ex VAT).
This applies across England, Wales, and most of Scotland, excluding certain remote or offshore postcodes.
If your order total falls just short of £150, or you’re a returning customer, feel free to contact us — we may be able to offer a discount code or delivery workaround.
📞 01945 738112 | ✉️ [email protected]
📦 UK Delivery Options
We work with both Royal Mail and DHL to offer reliable and flexible delivery across the UK:
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Our checkout system automatically displays the available delivery services for your postcode and order weight, ensuring you always see the most suitable options.
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Please contact us in advance for a tailored freight quotation if your order falls into this category.
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We aim to dispatch all in-stock orders promptly, but delivery depends on both when you order and which service you select.
UK orders: placed by 2:00 PM Monday–Friday are usually dispatched the same day.
International orders: placed by 2:00 PM Monday–Thursday are usually dispatched the same day.
Orders placed after these times are processed the next working day. This means delivery may occur the following day or later, depending on the courier and service selected.
Once dispatched, your chosen delivery service determines how quickly your parcel arrives:
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Premium services (e.g. Royal Mail Special Delivery or DHL by Noon) offer guaranteed delivery windows.
If your order is time-sensitive, we strongly recommend choosing a guaranteed service or contacting us before ordering to confirm availability.
Please note: For logistical reasons, we may occasionally adjust the delivery method selected at checkout. For example, smaller items may be better suited to letterbox-friendly packaging or may be at greater risk of delay or loss via certain services. We actively monitor courier and postal service disruptions—including strikes and delays—and may modify shipping arrangements to help ensure timely and secure delivery.
📅 Busy Periods & Delays
We always aim to dispatch promptly, but delivery times may be affected by:
Seasonal demand (e.g. Christmas, bank holidays, or industry shutdowns)
Courier network delays outside our control
Supplier lead times or calibration requirements for certain equipment
If your delivery is time-critical, please contact us before ordering so we can confirm stock and courier availability.
🌍 International Shipping
We ship worldwide using UPS Express Saver® and other trusted global courier partners. All international shipments are tracked and generally dispatched Monday to Thursday to ensure smooth customs clearance and transit.
Estimated delivery times:
Europe: 1–2 working days
North America: 2–3 working days
Asia-Pacific & Rest of World: 3–5 working days
Delivery times vary depending on location, customs clearance, and local courier performance.
💰 Taxes, Customs & Import Duties
International customers are responsible for any applicable taxes, customs charges, or import duties.
These are not included in our product or shipping prices.
Your courier will typically provide a secure payment link for any import charges once your parcel reaches customs.
If import fees are refused and the parcel is returned, we will issue a refund minus all incurred shipping and return costs.
📍 Using Your Own Courier
If you would prefer to arrange collection via your own courier (UK or international), please contact us before placing your order to coordinate collection from our Wisbech warehouse.
📝 Important Notes
Please ensure your delivery address and contact number are correct at checkout.
Undelivered parcels may be returned to us after a short holding period.
Redelivery or return fees may apply, even if your order originally qualified for free delivery.
By placing an order, you confirm your understanding and acceptance of this policy.