Delong Instruments — LVEM Benchtop and Compact Electron Microsocpes

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Thank you for stopping by our poster. The LVEM series brings high-contrast electron microscopy to individual labs without dedicated facilities, cooling infrastructure, or external vacuum systems — a practical realization of Prof. Armin Delong’s founding principle that every researcher deserves their own electron microscope.

TEM • STEM • SEM • EDS • ED No dedicated room Standard lab outlet No heavy metal staining required
Standard Power100–240V single-phase outlet
Special Facilities
No Special FacilitiesNo cooling, shielding, or vibration isolation
No External Vacuum PumpFully self-contained instrument
Vibration & EMI TolerantOperates in normal lab environments

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Whether you’re evaluating LVEM for a specific application or exploring which model fits your lab, our team is here to help.

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The LVEM Family

Two instruments. One mission.

Both models eliminate facility barriers entirely. Choose your entry point based on the imaging modes and voltage your research demands.

LVEM 5
The Only Benchtop TEM in the World

The most accessible entry point to transmission electron microscopy. Compact, affordable, and fully self-contained — the LVEM 5 places routine nanoparticle characterization and biological imaging directly on the lab bench.

  • Voltage5 kV
  • Modes
    TEMSTEMSEMED
  • Form factorTrue benchtop — fits any standard lab bench
  • Sample prepStandard 3.05 mm TEM grids; no special preparation
  • Best forNanoparticle sizing, biological thin sections, teaching labs
View LVEM 5 details →
LVEM 25E
All-in-One EM — Advanced & Compact

Five imaging modes in a single compact instrument. The LVEM 25E unites TEM, STEM, SEM, EDS elemental mapping, and electron diffraction — delivering multi-modal characterization without the footprint of a conventional EM suite.

  • Voltage25 kV (TEM); 10 & 15 kV (STEM); 15 kV (SEM)
  • Modes
    TEMSTEMSEMEDSED
  • Resolution1.0 nm TEM & STEM; 4 nm SEM
  • EDSSilicon Drift Detector, 30 mm², windowless, Mn Kα ≤ 129 eV
  • Tilt±20° with full automated alignment
  • Best forAdvanced research, elemental mapping, life sciences, materials science
View LVEM 25E details →

The Low-Voltage Advantage

Designed for contrast. Built for the real lab.

Low accelerating voltage is not a limitation — for biological and soft-matter samples, it is a fundamental advantage that high-voltage instruments cannot replicate.

Superior Contrast

Low-energy electrons interact more strongly with light elements, producing excellent contrast on biological samples — often without heavy metal staining.

Reduced Beam Damage

Lower accelerating voltages significantly reduce radiolytic and knock-on damage, preserving beam-sensitive sample integrity during acquisition.

Permanent Magnet Lenses

A unique permanent magnet objective lens design eliminates cooling water and high-power supplies, enabling true compact and portable form factors.

Democratized Access

Prof. Armin Delong’s founding principle: every researcher deserves their own electron microscope. LVEM makes that a practical reality for individual labs.