SKU: 74855402044

Spectroscope with Calibrated Scale and Adjustable Slit

Sale price$64.35 Regular price$71.50
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Spectroscope with Calibrated Scale and Adjustable SlitThe Spectroscope with Calibrated Scale and Adjustable Slit is a handheld and self contained instrument for the separating and measuring of optical light components in nanometers. Its calibrated scale and adjustable slit make it an essential tool for analyzing the wavelengths of light from any source. This instrument uses a diffraction grating to deflect light to the viewer's eye, with shorter wavelengths deflecting more than longer wavelengths. The

The Spectroscope with Calibrated Scale and Adjustable Slit is a handheld and self-contained instrument for the separating and measuring of optical light components in nanometers. Its calibrated scale and adjustable slit make it an essential tool for analyzing the wavelengths of light from any source. 

This instrument uses a diffraction grating to deflect light to the viewer's eye, with shorter wavelengths deflecting more than longer wavelengths. The scale inside allows for measurement and calibration of the deflection as nanometer wavelengths.

Read Instruction Sheet

Product Code: SE.HL3791-001
Brand: IEC
Type: Direct Vision
Dimensions:  190mm (L) x 100mm (W) x 25mm (H)
Weight: 0.15 kg
Material: Plastic
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: 74855402044

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 336 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
N
Verified Purchase
Nailah
Chelsea, US
★★★★★ 3
Not toooo sure of what to think
Size: 3.38 Fl Oz (Pack of 1)
Riding in the middleman this one.. Not toooooo sure of the outcome.. The item does not smell like the description.. Giving it a few to decide... Instruction are NOT clear as you wld think... Was this actually a product made originally or a knock off?
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
F
Verified Purchase
Fringed Jewels
Grantham, US
★★★★★ 5
It seems to work well
Size: 3.38 Fl Oz (Pack of 1)
Smells like coffee as others have vlogged it should. I wanted raw cold-pressed. That’s description on Amazon. It’s not on jar so we’ll see.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
C
Verified Purchase
Carlos
Phoenix, US
★★★★★ 5
Batana
Size: 5.07 Fl Oz (Pack of 1)
Nice oil
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
L
Verified Purchase
laronda D.
Whiting, US
★★★★★ 5
Very comfortable it feel so good
Size: 3.38 Fl Oz (Pack of 1)
It smell so good I use it for a week I already feel my hair growing
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
K
Verified Purchase
Kara & Tony
Whiting, US
★★★★★ 3
Botana oil for hair growth still waiting for results
6/2/2026 :There’s really no smell it moisturizes your hair. The ingredients are not damaging to my hair or scalp. There’s no greasiness. As far as the hair growth part of it I’m still waiting to see results and if or when I will update, but I would try it I mean, whatever we got to lose, but our hair and that I don’t mean that in a bad way, I’m being serious..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026

recommand products