กล้องจุลทรรศน์ Levenhuk LabZZ M2 Microscope 69740

• เหมาะสำหรับเด็กวัยก่อนเริ่มเข้าเรียน (5 ขวบขึ้นไป ภายใต้การแนะนำของผู้ใหญ่)
• สำหรับส่องตัวอย่างที่มีความโปร่งแสง  
• เลนส์วัตถุ (Objectives) 3 ชิ้น: 10x 40x 90x  / เลนส์ใกล้ตา (eyepiece) 10x
• ช่วงอัตราขยาย 100-900x
• ช่องส่องแบบตาเดียว
• มีที่ปรับฟอกัสขนาดใหญ่ จับถนัดมือ
• มีแหล่งแสงส่องใต้วัตถุ เป็นแบบหมุนได้ 2 ด้าน กระจกและหลอดไฟ (ใช้ถ่าน AA 2 ก้อน)
• มีที่พักตัวอย่างทรงสี่เหลี่ยม (stage) พร้อมคลิปจับ (specimen clips) ทำด้วยโลหะ 2 ตำแหน่ง
• รวมชุดทดลองสำเร็จรูปที่มีอุปกรณ์ 26 ชิ้นในชุด พร้อมท่องโลกระดับไมโคร (micro world) ได้ทันที
• แบรนคุณภาพจาก USA ; ประกัน 1 ปี

Levenhuk LabZZ M2 Microscope
Magnification: 100–900x. Experiment kit included.

Levenhuk LabZZ M2 Microscope – children’s microscope with an interesting experiment kit. This microscope will be highly appreciated by any young scientist. The kit includes not only the microscope itself, but also interesting specimens and everything needed for independent sample preparation and experiments. With this microscope, children can study any available transparent samples, and also watch Artemia’s growing process in the included hatchery. The included tools, materials, blank slides and cover slips allow for independent sample preparation.

Levenhuk LabZZ M2 Microscope is a great instrument for a young biologist. The microscope is very easy to use; it allows for studying transparent microscope samples, and also comes with an interesting experiment kit. A kid will be able to observe ready-to-use microscope slides and watch Artemia’s growth in a hatchery. The kit also includes special tools for independent preparation of microscope samples.

Levenhuk LabZZ M2 Microscope has a revolving nosepiece equipped with three objective lenses. The lenses come pre-installed. These lenses enable you to obtain several fixed magnifications in the 100x-900x range. Illumination is located below the stage. You can choose a mirror or incandescent lamp – the illumination unit rotates around its axis.

The stage is equipped with special metal clips for sample fixation. Focusing is carried out by means of a separate knob. Illumination runs on batteries (not included). The body is lightweight–made of reliable plastic. The microscope with all the enclosures is packed in a bright colorful box.

The microscope provides several fixed magnifications in the 100x-900x range. Magnification can be easily changed during observations by rotating the revolving nosepiece. Focusing is coarse; the stage moves vertically. Samples are fixed in place with special metal clips.

Illumination is located below the stage. The mirror makes it easy to observe in daylight. When external light is not sufficient, use the built-in illumination that runs on batteries (not included in the package).

The body is made of plastic, yet it is very reliable. The microscope and all the accessories come in a colorful gift box.

Features:
Microscope for children
Illumination: mirror or incandescent lamp
Three fixed magnifications: 100x, 400x and 900x
Durable and lightweight plastic body
Allows for viewing transparent microscope samples

The kit includes:
Microscope
Eyepiece
Pipette
Prepared slides (3 pcs)
Blank slides (3 pcs)
Cover slips (6 pcs)
Slide stickers (6 pcs)
Glue
Sea salt
Flask with brine shrimp
Brine shrimp hatchery
Spatula
Scalpel
Pestle

Specifications:
Head: monocular
Optics material: optical plastic
Magnification, x: 100–900
Eyepieces: 10х
Objectives: 10х, 40х, 90х
Revolving nosepiece: 3 objectives
Focus: coarse
Body material: plastic
Illumination: incandescent lamp, mirror
Power supply: 2 AA batteries (not included)
Weight: 1 lb (0.444 kg)
Package size (LxWxH): 3.2×11.0×11.4 in (8.2×28×29 cm)

Levenhuk LabZZ M2 Microscope is not compatible with Levenhuk digital cameras due to non-standard 17-mm eyepiece tube diameter.

References

User Manual: User manual: Levenhuk LabZZ M1 / M2 / M3 Microscopes (pdf)

Looking for something to start your observations with?

Paramecium caudatum is perhaps one of the first protozoans that a young naturalist would explore. These organisms live in fresh standing water. They can also be found in an aquarium, especially if it hasn’t been cleaned for a long time. My ciliate-shoes were taken from the aquarium. Of course, there are only a few ciliate-shoes in aquarium water – the possibility of finding one of them in your microscope’s eyepiece is extremely low. Therefore, we need to increase their concentration. To do so, take a jar (about 17 fluid ounces or 0.5 liters), fill it with aquarium water, put a small spoiled onion and banana peel inside. Put the jar in a warm dark place for 5 to 7 days (don’t close it with a lid).

 

Paramecium caudatum. Animation. Magnification: 64x.

The average size of Paramecium caudatum is 0.02 inches (0.5 mm). For locomotion Paramecium caudatum uses its cilia (about 15 thousand cilia cover its little body!). Moreover, it has two nuclei (a large macronucleus is responsible for nutrition, respiration, metabolism, etc.; and a small micronucleus – for reproduction). Paramecium caudatum feeds on bacteria or algae. The food is caught by an oral groove covered in cilia and then goes to the cell mouth. It is then digested in the digestive vacuole (gullet). Undigested leftovers are ‘thrown out in the open’ through an anal pore (cytoproct). To remove all excess water, our heroine has two contractile vacuoles. They work like pumps on a boat, pumping excess water out of its body. Paramecium caudatum maintains its slipper-like shape thanks to a special membrane (pellicle).

 

Study this image to learn all parts of Paramecium.

Source: https://www.levenhuk.com/reviews/paramecium/