SKU: 27093270813

Digitale geluidsniveaumeter, kalibrator, 94 dB en 114 dB voor 1/2 inch en 1 inch microfoon, professionele noise-decibel, kalibratiegereedschap, meetnauwkeurigheidscontrole, draagbaar met blacklight

Sale price$144.89 Regular price$160.99
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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

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Description

Digitale geluidsniveaumeter, kalibrator, 94 dB en 114 dB voor 1/2 inch en 1 inch microfoon, professionele noise-decibel, kalibratiegereedschap, meetnauwkeurigheidscontrole, draagbaar met blacklightTwee uitgangsniveaus van 94dB en 114dB met Output frequentie van 10000. 1%Hz (maakt kalibratie met A, B, C of D wegende netwerken of lineair) Geschikt voor microfoons van inch en 1 inch (inclusief inch adapter) Eenvoudige bediening met n hand en indicator voor bijna lege batterij Levensduur batterij: ca. 100 uren en voldoet aan IEC942 Klasse 1 Hoogteeffecten: Ongeveer 0,1 dB afname voor elke 2000 voet hoogteverhoging van de zeespiegel tot 12 voet

  • Twee uitgangsniveaus van 94dB en 114dB met Output frequentie van 1000±0.1%Hz (maakt kalibratie met A, B, C of D wegende netwerken of lineair)
  • Geschikt voor microfoons van ½ inch en 1 inch (inclusief ½ inch adapter)
  • Eenvoudige bediening met één hand en indicator voor bijna lege batterij
  • Levensduur batterij: ca. 100 uren en voldoet aan IEC942 Klasse 1
  • Hoogteeffecten: Ongeveer 0,1 dB afname voor elke 2000 voet hoogteverhoging van de zeespiegel tot 12 voet hoogte of vergelijkbare atmosferische drukverandering (ca. elke 50 mm Hg afname)

  • Digitaal display toont het gekozen dB-niveau duidelijk met achtergrondverlichting. Vermijd het maken van onzorgvuldige fouten in vergelijking met traditionele aan / uit-schakelaars.

  • Lichtgewicht en klein formaat. Handige geluidsbron voor het snel en eenvoudig kalibreren van geluidsniveaumeters en geluidsmeetsystemen.

  • Voldoet aan de norm IEC60942 (IEC942) klasse 1. Solide ontwerp biedt nauwkeurige en betrouwbare prestaties, geschikt voor persoonlijk, veld- en laboratoriumgebruik.

ND9B Klasse I Geluidsmeterkalibrator voor het handhaven van de nauwkeurigheid van een geluidsniveaumeter.

Geluidsmeters meten de geluidsdrukniveaus zowel om de akoestische getrouwheid te controleren als om de naleving van de voorschriften voor geluidsoverlast in gezondheids- en veiligheidscodes te verifiëren. De meters worden gebruikt in verschillende omgevingen, waaronder woningen, scholen, luchthavens, auto- en machinewerkplaatsen, concertzalen, opnamestudio's en ziekenhuizen.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 27093270813

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4.1 ★★★★★
Based on 26 reviews
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Verified Purchase
Kim C
Lake Worth, US
★★★★★ 5
Functional and easy to install!
Color: Cool White
This umbrella light is super handy! It hinges open to allow installation around the umbrella pole, so you don’t have to remove umbrella from table to add the light. I like that it can be charged with included USB cord or can use regular batteries. The different light settings are also nice depending on how much light you need or want at the time. We’ll be using this quite often when sitting at the table by the pool this summer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 21, 2025
M
MsWaitWhat
Dallas, US
★★★★★ 5
Different than most on the market worth a try!
I’ve tried a lot of pimple patches and these actually feel different from most of the ones on the market because of the sulfur/OptiMSM ingredient combination. They don’t just cover the spot — they seem to really help bring everything to the surface faster. I had one deep pimple that had been under my skin for so long I honestly started wondering if it was just a scar at that point, and this patch finally helped it come out and heal. The patches are super thin and blend into the skin really well, so they’re easy to wear during the day or overnight. They stick well without feeling harsh on my skin, and I also tried them on my tween sons, who definitely need to wash their noses better sometimes, and they seemed to work really well on their softer skin too without causing irritation. I also love the little travel pouch included. Definitely one of the more effective acne patches I’ve used.
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Reviewed in the United States on May 25, 2026
T
Tati
Battle Creek, US
★★★★★ 4
Halo patches
I tried the Halo Dot Ultra Thin Pimple Patches, and overall I’m really impressed with them. In terms of effectiveness, they work well at helping bring pimples to a head and protecting spots overnight so they don’t get worse or irritated. The value for money is good since you get a decent amount in the pack and they’re thin enough to use during the day or night without being too noticeable. They’re super easy to use—just clean skin, place the patch, and go—and I like that they stay in place pretty well. I also find them pretty versatile, since you can wear them at home or out and about if you get a discreet one. For skin sensitivity, they’ve been gentle on my skin with no irritation, which is a big plus for me. Overall, they’re a simple, effective skincare staple I’d definitely keep on hand.
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Reviewed in the United States on June 1, 2026
C
Cheeky M.
Grantham, US
★★★★★ 5
Nice patches -- Fair price -- has sulfur!
This is a review for the Halo Dot™ Pimple Patches for Face, Hydrocolloid Acne Patches with OptiMSM®, Visibly Shrinks Zit & Whitehead- Comes with Travel Essentials Inner Pouch (33 PATCHES) ($12.59) PROS: Price -- a fair deal for 33 patches and consistent with pricing of most other similar patches online. The inclusion of sulfur (this OptiMSM business) makes these unique also -- I can't seem to find others on Amazon with similar formulation, so these are intriguing. Sulfur is known for antimicrobial properties and can be helpful for zits and a little bit gentler on your skin than benzoyl peroxide or salicylic acid -- but anytime I put any sulfur stuff on zits that are above or around my eyes, it seems to migrate INTO my eyeball while I'm asleep and man is that uncomfortable. This little patch solves that dilemma nicely by keeping the sulfur put. CONS: none that I can see; these are a nice entry into the hydrocolloid acne patch space.
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Reviewed in the United States on May 13, 2026
J
Jennifer
Birmingham, US
★★★★★ 3
Disappointing results and poor adhesion.
I love Hydrocolloid pimple patches. I have used at least half of the brands available for sale and even the non brand ones. I’ve also used the hydrocolloid sheets and cut them to size and the hydrocolloid gel bandaids and used for pimple patches. I love how they help along the healing and keep me from picking at the pimple. This brand I wasn’t impressed by. None of them stayed on my face for half the night. The one that remained in place the longest out of the 4, didn’t show any signs of improvement. The longest they kept in place was 3 hours. I had to reapply and I still handbrake noticed any signs of healing after using one full sheet on 4 smaller sized blemishes because the adhesive wasn’t working.
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Reviewed in the United States on May 20, 2026

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