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Description
Goetland Gecertificeerde F1 Kalibratiegewichten Set 25 stuks 1mg–1kg RVS Hoge Precisie voor Digitale Weegschaal Laboratorium OnderwijsWij zijn er trots op sinds 2017 pionier te zijn op het gebied van precisie kalibratiegewichten en hebben door de jaren heen veel lovende beoordelingen van klanten ontvangen Sinds 2023 tillen wij ons certificeringsniveau naar een hoger niveau. Onze certificaten worden jaarlijks uitgegeven door een toonaangevend instituut op het Aziatische continent De nauwkeurigheidsklasse is nooit lager dan F1. Bevat 25 gewichten, een stevige aluminium opbergkoffer
- Wij zijn er trots op sinds 2017 pionier te zijn op het gebied van precisie-kalibratiegewichten en hebben door de jaren heen veel lovende beoordelingen van klanten ontvangen
- Sinds 2023 tillen wij ons certificeringsniveau naar een hoger niveau. Onze certificaten worden jaarlijks uitgegeven door een toonaangevend instituut op het Aziatische continent
- De nauwkeurigheidsklasse is nooit lager dan F1. Bevat 25 gewichten, een stevige aluminium opbergkoffer met schuimvulling, een plastic doosje voor microgewichten, pincet en reinigingsdoek
- Gemaakt van SUS304 roestvrij staal in cilinder- of schijfvorm voor structurele stabiliteit. Geschikt voor diverse kalibratie- en meettoepassingen zoals balansweegschalen, miniweegschaaltjes, sieradenweegschalen enz
- Certificaat (PDF) kan worden gedownload via 'Productdocumenten'. Geen papieren versie inbegrepen. Neem gerust contact met ons op bij interesse in E1/E2 of andere combinaties – uw mening is waardevol voor ons
Nooit lager dan F1
Kalibratiegewichten Set
28 stuks, 1 mg - 5 kg; 25 stuks, 1 mg - 1 kg; 21 stuks, 1 mg - 100 g
Kalibratiecertificaten sinds 2023
Nauwkeurigheidsklasse: F1
Naam van het instituut: National Institute of Metrology, China
Certificaatnr. LSmm2025-01332 / LSmm2025-01333 / LSmm2025-01334
Verificatiedatum: 25 april 2025
Vervaldatum: 24 april 2026
Pakket
28 stuks, 25 stuks of 21 stuks Gewichten
1x Plastic pincet
1x Opbergdoos voor gewichten tot 1 g
1x Aluminium etui
1x Reinigingsdoekje
Om schade tijdens langdurig en complex internationaal transport te voorkomen, is het 5 kg zware gewicht veilig verpakt in een duurzame ronde kunststof koffer. Plaats het na het uitpakken zelf in de koffer.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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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]
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4.9 ★★★★★
Based on 1576 reviews
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Product Reviews
★★★★★ 5
Great value, Easy Set-up
Size: Freo S, Size: Freo S
I just got this vacuum and honestly, I’m pretty happy with it for the price. Here’s how it’s been going so far.
Price: This thing is a steal. Works just as well as some of the more expensive ones I’ve had.
Set up: It took maybe 5 minutes to get it going, and I didn’t even need to look at the manual. Super easy to set up and start mapping.
Carpet: Does a great job picking up dog hair and dust on my low-pile carpet. Doesn’t miss a spot.
Thresholds: It goes over low doorways and small lips—no getting stuck.
Navigation: It uses structured light for obstacle avoidance, which is typically found in much higher-end models, and it really exceeded my expectations. The cleaning path is smooth, and it avoids furniture without bumping into anything. It just works.
Base station: Very hands-off. It docks and charges itself. Plus, I love how sleek and simple it looks.
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Reviewed in the United States on September 11, 2025
★★★★★ 4
Good value for price
Size: Freo S
Update - returned due to lackluster battery power. It would vacuum on “regular”, and come back to recharge after less than a hour. It’s too bad, because otherwise it was great.
This is a pretty good system for the price, especially if you have primarily hardwoods/tile. It’s not great on carpet, and I really need a vacuum with more suction power. It will not remove enough pet hair from my low pile and washable rugs to make the investment worth it.
Battery does not last as long as other models I’ve tried. It returns to recharge many times for my 3000 sq ft.
I have a multi level house, with multiple thresh holds (home has many additions). I need a vacuum that can save 6 maps. This only saves 3 - which to be fair is typical in this price range. I don’t even know if there is a vacuum that can save 6?
WiFi was easy to connect. Not too noisy when running. Seems well-made. Just needs more suction for my needs. Overall this is a decent system for this price point. I need something more powerful so I’ll probably be upgrading.
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Reviewed in the United States on January 31, 2026
★★★★★ 1
Not slim
Size: Freo S
Update AGAIN! I have had it 7 months now and it started making a noise like it was stuck on something but theres nothing at all there. Contacted customer service and they said its the brush and lid, so they send a new one. Great. I get it and install it and it makes the noise still contacted customer service again and they said we can send a new brush and lid, i said i just received a new one and its still making that noise. Now they said we will get back to you soon but its been 5 days and nothing. I have contacted them again and still nothing
Update. I’ve had this for several months now and theres a few problems beside it being not thin enough to go under furniture. I dont like to set up ‘task’ because its not always convenient at the same time each day so i usually just open app and push start. The problem is that it doesnt do all the rooms even if i have chosen all the rooms it also doesnt self empty unless i go into the app and self empty it. It does sometimes but not always. Now customer service says that i have to set up task, but why?! We should be in control of the robot not the robot of us. Also, you can not send it to a specific spot it missed. If i move my robot over a spot to revacume, it loses its mind and wants to start remapping. I still like that it vacumes well(besides missing here and there) but i do regret getting it. Also it sucks on edges, so i sweep the edges to it vacumes more.
Will not keep them in mind for the futre.
Received today. Way easier set up to wifi than the coredy. Way quieter too. Its not slim and wont go under my sofas , that was disappointing. It needs at least a 4inch clearance 5 to be safe. Dont recall seeing that in description but i could be wrong . It also doesnt have a way to manually navigate it , either a control or a way from the app. I will try it out since i like the quietness and the sucking power.
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Reviewed in the United States on October 13, 2025
★★★★★ 5
Good quality for the price
Size: Freo S, Size: Freo S
NARWAL Freo S — Truly Hands-Free Cleaning!
I’ve been using the NARWAL Freo S Robot Vacuum and Mop Combo and I’m genuinely impressed. The 8000Pa suction is incredibly powerful — it picks up dust, crumbs, and even stubborn pet hair with no problem. The mopping function leaves my hard floors looking fresh and streak-free.
What I love most is how hands-free it is. The self-emptying base really works — I don’t have to think about it for weeks, and they claim up to 180 days! The LDS navigation is super accurate, and the obstacle avoidance means it never gets stuck.
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Reviewed in the United States on November 22, 2025
★★★★★ 3
Not a mop, vacuum only
Size: Freo S
This is really only a vacuum. It is not a mop, at best it could be considered a “dry mop” but that doesn’t really clean floors.
Good price, and it vacuums well enough. Doesn’t seem to get stuck nearly as much as my old Shark. I gave 3 stars because half of what the title says it can do is misleading/not true
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Reviewed in the United States on May 20, 2026