The M27B Series Tri-Power design offers three magnifications in one stereo microscope. You can change from 10X, 20X, 30X or 10X, 20X, 40X with one smooth, click-stop movement. The corded M27B provides individual or simultaneous top and bottom illumination. These features, plus wide-field 10XD eyepieces, produce quality images. This series is ideal for elementary, middle and high school classrooms.

Features:

• 3 magnification options in one ocular head
• Dual Illumination switches allow for 3 light settings
• Locked-on eyepieces ensure parts remain on the microscope
• Slip-clutch system prevents users from damaging the focusing mechanism
• Built-in illuminator, 12V 10W. Incident (top); In-base (bottom) with dual on/off switch