Vernier caliper

The high-performance compound microscope for every laboratory with fixed, pre-centred Koehler illumination.

The KERN OBF and OBL models are excellent, stable laboratory microscopes for all common routine applications
Through the simple Köhler lighting, the adjustable field diaphragm and a pre-centred and height-adjustable Abbe condenser with adjustable aperture diaphragm, these microscopes produce superb images in both the light and dark field
As standard, these microscopes, depending on the model, are fitted with wide-field eyepieces, achromatic, planachromatic or infinitely corrected E-Plan lenses
These binocular microscopes are fitted with a dioptre compensation
A trinocular head is available as an option, so that you can connect a camera
A revolving unit for up to 4 lenses and a large specimen stage are included with delivery as standard
The following optional accessory items are available: Various eyepieces, lenses, a complete polarisation kit, a phase-contrast unit as well as complete HBO and LED fluorescence kits etc.
The light is provided by a 20 Watt halogen lighting unit or by a 3 Watt LED version as an alternative
A central feature of this adaptable, robust microscope range is the stable mechanism which can be adjusted precisely

Glass test tube, also known as culture tube and sample tube, is a common and widely used glassware, which has a finger-like length, open top and closed bottom. It can be made of soda-lime material, borosilicate glass or quartz glass. And borosilicate glass and quartz glass test tube can withstand high temperatures up to several hundred celsuis.

The 24″ tall, 7 1/4″ diameter tank comes filled with 13 lbs. of our exclusive ion-exchange resins that remove minerals from the water through a process that binds them to the resin. Because the majority of the impurities are dissolved, deionization produces highly purified water, so no more spots! The two valves control the water flow through the filter. This allows you to bypass the filter when it is not needed to prolong the life of the resin. Add our Stainless Steel Quick Disconnect Set for faster, easy use. The life of the resin depends upon the amount of total dissolved solids (TDS) in your water. Want to know your TDS level? Check out our easy-to-use TDS Meter. The replacement resin is safe, disposable, and easy to install.