Tube
Type
Specifications
Compare modelsNTD 46,667
Inc. VAT
The Kern & Sohn Compound Microscope OBL 137 is a versatile, high-quality laboratory instrument designed for educational, research, and professional use. It features an infinity optical system with four objective lenses (4x, 10x, 40x, and 100x) and widefield WF10x/20 eyepieces for a broad, clear field of view. The ergonomic 30° inclined, 360° rotatable binocular tube offers comfortable viewing, while coaxial coarse and fine focusing allows precise specimen adjustment. Illumination options include a 3W LED or 20W halogen light source with a lightfield diaphragm and ABBE 1.25 N.A. condenser with aperture diaphragm, providing fixed, pre-centered Köhler illumination for optimal contrast and clarity.
Scope of Supply:
This microscope offers precision, reliability, and ease of use, making it an excellent choice for biology, medical research, material science, and general laboratory applications.
Manufacturer P/N
OBL 137
Part Number
4.657 661
Manufacturer
KERN & SOHN
Tube
Trinocular
NTD 40,779
Inc. VAT
Manufacturer P/N
OBL 127
Part Number
4.657 659
Manufacturer
KERN & SOHN
Tube
Binocular
It is a versatile, high-quality laboratory instrument designed for educational, research, and professional use. It features an infinity optical system with four objective lenses (4x, 10x, 40x, and 100x) and widefield WF10x/20 eyepieces for a broad, clear field of view. The ergonomic 30° inclined, 360° rotatable binocular tube offers comfortable viewing, while coaxial coarse and fine focusing allows precise specimen adjustment. Illumination options include a 3W LED or 20W halogen light source with a lightfield diaphragm and ABBE 1.25 N.A. condenser with aperture diaphragm, providing fixed, pre-centered Köhler illumination for optimal contrast and clarity.
_0.png&w=3840&q=75)
1 min read
Cleaning laboratory glassware properly is essential for accurate, safe, and repeatable lab work. This guide explains how to remove stubborn residue from beakers, flasks, bottles, volumetric glassware, and other lab glassware, including grease, dried salts, biological residue, stains, and burnt deposits. It also covers safe cleaning methods, common mistakes, drying and storage tips, and when damaged glassware should be replaced.
1 min read
Pipette calibration helps laboratories confirm that liquid handling results remain accurate, repeatable, and traceable. This guide explains how pipettes are calibrated to ISO 8655 standards, including gravimetric testing, environmental control, correct tip selection, volume testing, calibration records, and common mistakes to avoid. It also covers when to use in-house calibration and when an external calibration service may be more suitable.
1 min read
A free molarity and dilution calculator covering four essential lab calculations: C1V1=C2V2 dilution (solve for any unknown), molarity from mass, mass from molarity, and serial dilution table generation. Includes worked examples, a concentration units guide and step-by-step preparation instructions for every result.
1 min read
Free online buffer preparation calculator. Select your buffer system, enter target pH, concentration and volume, and get an exact lab-ready recipe with reagent masses and step-by-step instructions. Covers PBS, Tris-HCl, sodium phosphate, acetate, HEPES, MOPS and more.
_0.png&w=3840&q=75)
1 min read
Laboratory balances are essential weighing instruments used to measure samples, reagents, powders, chemicals and materials with accuracy and consistency. They are commonly used in research, education, quality control, pharmaceutical testing, food testing, industrial laboratories and general scientific workflows.
NTD 46,667
Inc. VAT
