Feature: 1. DIGITAL DISPLAY: Biological trinocular microscope has a large screen display, supports temperature indication, power switch with one button control. 2. ADJUSTABLE TEMPERATURE: The left and right sides of the lab trinocular microscope are buttons to adjust the temperature, and the temperature adjustment range is 38‑42℃. 3. 360 DEGREE ROTATION: Lab biological trinocular microscope supports 360 degree rotation, and the viewing axes can be rotated according to the need, which is convenient for close observation. 4. CONVENIENT OBSERVATION: The objective lens turning ring has a groove for mutual clamping with the rear positioning piece for easy observation. 5. WIDE APPLICATION: Trinocular microscope is suitable for medical research, interest culture, beauty mites, teaching demonstration, pet hospital, breeding laboratory. Specification: Item Type: Biological Trinocular Microscope Material: Iron Product Size: Microscope Size: Approx. 38.5x17.5x13cm / 15.2x6.9x5.1in Storage Case Size: Approx. 46x28x18cm / 18.1x11.0x7.1in Gross Weight: 5300g/11.7lb Use: Mites, Sperm, Aquaculture Plug: CN Plug Voltage: 220‑240V Common problems and solutions: I. Lamp light source brightness is not enough: 1. The dimming twist to the maximum. 2. Spotlight mirror at the light bar operating lever to the leftmost. 3. To confirm whether the spotlight mirror position is too low, such as is adjusted upward, the height of the non contact angle carrier shall prevail. 4. Confirm whether the spotting scope in the center of the field of view, screw carefully adjusted. II. Image can not be displayed through the screen: 1. Check whether the screen switch is open. 2. Check the lens barrel light transmission push-pull rod has not pushed and pulled the correct. III. Switch open when the light bulb does not light: 1. Check whether the power is on. 2. Check whether the plug plate has electricity. IV. Bulb flicker or brightness is not enough: 1. To confirm whether the voltage is stable. 2. Such as voltage stability, that the bulb is bad, must be replaced. 3. Replace the new power supply. V. Field of view with spoil: 1. Check whether the camera amplifier lens chip is dirty, with a small cotton ball stick to gently wipe it clean, or blow it clean with rubber. 2. There is dirt on the lens (spotting scope, objective lens, eyepiece), wipe it clean. 3. Slides with dirt, wipe it clean. VI. With high magnification objective image is not clear: 1. Blood film specimens (specimens) do not pass, or too much blood (coverslip cover is not in place). 2. Observe whether the brightness of the illumination lamp is appropriate. VII. Excessive eye fatigue when using: 1. No visual adjustment is easy to cause fatigue, to correctly adjust the visual degree. 2. Observe whether the lighting brightness is appropriate. VIII. The picture is not clear: 1. Check whether the coverslip has been added to the specimen. 2. Whether the fine tuning knob adjustment is in place;. 3. Detect whether there is dirt inside and outside the objective lens. 4. Check whether the coverslip used is standard and whether the oil of the coverslip is too thick. 5. Check whether the specimen is placed backwards. 6. Check whether the objective lens is covered with thick oil lens, if so, wipe it with wiping paper dipped in xylene. 7. Check whether the spotting scope aperture light bar is open too small, appropriate open large. 8. Check whether the position of the spotting scope is too low, if so, correct the position. IX. Image dark on one side: 1. Check the spotting scope in the center of the field of view or has been tilted. 2. Check whether the objective lens is in position, rotate it, so that it is positioned. 3. Check whether the specimen has been fixed, to reliable reinforcement.. Package List: 1 x Instruction Manual1 Box x Slides (50PCS)1 x Microscope Main Body1 x Display Screen1 x Power Adapter2 x Accessories1 x Mobile Ruler1 x Aluminum Case Note: 1. Dear customer, please rest assured to buy without worrying about the plug adaption. We will provide an adapter for you according to different country standard for ensuring its normal use.2. All data are measured manually, and there are certain errors in the measurement results.