National 131-CLED-MS Compound Microscope

National 131-CLED-MS Compound Microscope

National 131-CLED-MS Compound Microscope


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Product Highlights

  • 10.0x Eyepiece
  • Cool LED Illumination
  • 4.0x, 10.0x, 40.0x Objectives
  • 45° Inclined Viewing
  • DIN Optical System
  • 360° Rotating Head
  • Cast Metal Frame
  • Mechanical Stage
  • 110x120mm Stage
  • 3-Hole Nosepiece
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National 131-CLED-MS overview

  • 1Description

The 131-CLED-MS Compound Microscope from National Optical is a versatile user-friendly compound microscope designed to facilitate teaching at the high school level using the standard format used in schools through grade twelve. This updated model features an LED stage illumination system for long-life and minimal heat output. The student-proof design decreases the likelihood of lost parts or mishandling.

This model of the 131-CLED is configured with an inclined 10x eyepiece for easy viewing when seated, achromatic 4x/10x/40x objectives mounted on a rotating turret, and low position knobs for precise focusing between coarse and fine focus ranges. The included mechanical stage is a useful graduated specimen holder with top-mounted x/y controls for precise positioning of slides and other objects on the viewing stage.

Optical System

Widefield 10x eyepiece with revolving pointer
45° inclined eyepiece
360° rotating head
Achromatic 4x, 10x, 40x objectives
3-hole ball bearing mounted nosepiece


Durable 14" (36 cm) cast metal frame
Built-in 0.65NA condenser lens
Large 110 x 120mm stage with locked-on, spring-mounted stage clips
Graduated mechanical specimen holder
Low position coarse and fine focusing controls with slip clutch, tension adjustment, and rack stop


Cool LED (20 watt tungsten equivalent), up to 50,000 hour bulb life
Heavy-duty grounded power cord
On/Off switch
In the Box
National 131-CLED-MS Compound Microscope
  • Limited Lifetime Warranty
  • Table of Contents
    • 1Description

    National 131-CLED-MS specs

    Microscope Type Compound
    Eyepiece 45° inclined, Widefield 10.0x
    Nosepiece 3-hole ball-bearing mounted
    Objective(s) 4.0x, 10.0x, 40.0x
    Head Rotating 360°
    Light Source Cool LED
    Light Control On/Off
    Specimen Stage 4.33 x 4.75" (110 x 120 mm)
    Frame Dimensions 14.2 x 7 x 5.25" (36 x 17.5 x 13 cm)
    Weight 6.8 lb (3.1 kg)

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