SKU: 12542350618

Microscope 446TBL-15

Sale price$121.50 Regular price$135.00
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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13

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Description

Microscope 446TBL-15The 446TBL 15 1x 3x Stereo Microscope from National Optical is a dual magnification stereoscopic microscope fit for laboratories, high school and university students. The stereo (two) eyepiece configuration is preferred by most researchers and students because of the superior depth of field and comfort compared to monocular microscopes. This model of the 446 stereo microscope has a paired 15x eyepiece delivering 15x and 45x magnification. Two

The 446TBL-15 1x/3x Stereo Microscope from National Optical is a dual magnification stereoscopic microscope fit for laboratories, high school and university students. The stereo (two) eyepiece configuration is preferred by most researchers and students because of the superior depth of field and comfort compared to monocular microscopes. This model of the 446 stereo microscope has a paired 15x eyepiece delivering 15x and 45x magnification. Two achromatic paired objectives are parcentered and parfocalled to keep the specimen centered and focused when switching between the two magnification settings. The stage can be illuminated from above and/or below using 10W tungsten lights activated by separate base-mounted On/Off switches. The top (incidental) light source has an adjustable beam to help optimize the brightness and contrast of the specimen.

A user-friendly design complements the range of features that make the 446 stereo microscope a welcome addition to labs as well as classrooms. The heavy-duty post-mounted adjustable viewing head permits use of specimen heights up to 35mm / 1.4", and is also capable of 360° rotation to help share the eyepiece among colleagues and students without moving the microscope. The rack and pinion system has a single focus dial and includes a slip clutch mechanism to prevent mishandling. An adjustable interpupillary distance, left-side diopter correction, and reticle holder/retainer provide the 446 series with the flexibility needed to create a customized viewing experience.

Optical System
  • Paired 15x inclined eyepiece
  • 1x and 3x achromatic objectives
  • 15x and 45x magnification
  • Parfocalled, parcentered, paired objectives
  • 75mm / 3" working distance, 35mm / 1.4" maximum specimen height
  • Eyepiece with diopter adjustment and reticle holder/retainer
  • 55-75mm / 2.2-3" interpupillary distance
Focusing
  • Rack and pinion focus system
  • Slip clutch prevents over-turning
  • Tension adjustment prevents focus drift
Lighting
  • Incidental (top) 10 watt tungsten illumination with adjustable beam
  • Transmitted (bottom) 10 watt tungsten illumination
  • Dual base-mounted On/Off switches
Construction Details
  • 80mm frosted glass and 80mm reversible black and white stage plates
  • Locked on metal stage clips
  • 360° rotating viewing head
  • Cast metal frame
  • Grey enamel finish
  • 14.6" (37 cm) maximum height
  • 5.5 lb (2.5 kg) weight
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: 12542350618

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Hayley
Lowell, US
★★★★★ 5
Amazing durable product for your fur babies!
Color: Brown, Pattern Name: Tree stump 2 Pack, Color: Brown, Pattern Name: Tree stump 2 Pack
We love this product! I have two aggressive chewers, one being a Staffordshire bull terrier, and the other great Dane mix puppy who is eight months old. They both love to chew and can be mischievous or anxiety ridden when they are bored and if they aren’t entertained with something. My Staffordshire bullterrier is a very aggressive chewer and we’ve had a hard time finding durable toys for her. This product is amazing. It keeps them entertained for at least an hour with the food that you can place inside. The molds are great and it’s really nice that I can make homemade dog treats to put in the toy. I use these toys every day, multiple times a day, and they’re holding up amazing. I love that the company includes the molds for the treats as well as a little key to open up the back of the toy to put the food in. This is a really good product. I have spent hundreds of dollars on toys and this one is worth the cost. I’ve tried bully box, Kong products, anything you can think of that says durability chewing, however this is really really good. I 100% recommend this product and I think it’s very fair pricing. Your fur babies will get a lot of playtime with this!!
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Reviewed in the United States on November 20, 2025
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Daily Deals! 🏷️ #Deals #Savings
Waukegan, US
★★★★★ 4
Good puppy toy
Color: Brown, Pattern Name: Tree stump 1 Pack
Keeps the pup busy. He is not able to bite through it, it is very durable. Only gave 4 stars because it only takes him about 15 minutes to go through it and hes onto the next thing. Love that he is not able to destroy it though like other toys.
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Reviewed in the United States on February 17, 2026
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Crystal
Lowell, US
★★★★★ 5
Great toy
Color: Brown, Pattern Name: Tree stump 2 Pack
Love this for my dogs! Durable and easy to use. They love it too.
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Reviewed in the United States on April 28, 2026
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Kindle Customer
Houston, US
★★★★★ 5
This was another great purchase 10 out of 10 would recommend
Color: Brown, Pattern Name: Tree stump 2 Pack
Worth the price! This is something my dog absolutely loves that keeps her engaged it's so easy to clean it's safe the size is just right for her and it's hard enough to where I don't have to worry about it breaking or her chewing it up or something.Great Buy
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Reviewed in the United States on May 6, 2026
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Kathy
Fort Morgan, US
★★★★★ 5
High quality toy loved by my dogs
Color: Brown, Pattern Name: Tree stump 2 Pack
These are amazing, my dogs favorite toys now. I have two strong chewers who haven’t been able to destroy these. I use yogurt, peanut butter and eggs, broth, really any dog friendly liquids to fill it. I recommend these to all my friends and family with dogs of all sizes.
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Reviewed in the United States on June 5, 2026

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