Silverstar" is one of the leading brands in the market today. In 2002, we made a grand entry as manufacturers and exporters of the utility items such as :
We would like to introduce to you our best selling gadget for 2007 "usb digital microscope".
Due to customer request we have enhanced the digital camera to 1.3 mega pixels, which expands the usage of this product in many more fields
Product specifications
Image sensor: 1.3 mega pixels
Video capture resolution 1280x960, 800x600, 640x480, 352x288, 320x240, 160x120
Still image capture resolution 1280x960
Color: 24bit rgb
Lens: dual axis 27x & 100x microscope lens
Focus range manual focus from 10mm to infinite
Flicker frequency 50hz/60hz
Frame rate max 30f/s under 600 lus brighness
Magnification ratio 10x to 200x
Shutter speed: 1 sec to 1/1000 sec.
Video format avi format
White balance: auto.
Exposure: auto
Light source: 4 led white light
Pc interface: mini usb 2.0
Operation system: windows 98se/me/2000/xp
Osd language english
Power supply: 5v dc from usb port
Size: 110mm(l)x33mm(r)
Accessories
A1-alloy stand
Safety cover
User guide
Cd rom (driver)
Gift box
Packing:
Unit: 25 x 18 x 8cm (l x w x h), weight: including metal stand 120gw
20pcs/ctn.
Dimension: 50 x 40 x 25cm (l x w x h) gross weight: 10.5kgs
Packing:
Unit: 25 x 18 x 8cm (l x w x h), weight: including metal stand 120gw
20pcs/ctn.
Dimension: 50 x 40 x 25cm (l x w x h) gross weight: 10.5kgs
Digital ph meter tester - universal tester!
1. Pen-type ph meter
2. Lightweight and compact
3. Quick accurate readings
4. Membrane switching
5. Long battery life
This handy ph pen/meter is a great tool for any aquarist. It is extremely easy to use and is waterproof. Simply dip the meter in the solution to get the ph reading. Its high accuracy and resolution also make it suitable even for the most-demanding applications.
Note: ph 7.0 solution is required for calibration.
Specifications:
Large readout display
Range: 0.0-14.0 ph
Resolution: 0.01 ph resolution
Accuracy: +/- 0.01 ph
Fixed electrode
Operating temperatures: 5`c to 50`c
Atc: automatic temperature compensation for accurate readings!
Power supply: 3 x 1.5 volt (button battery)
Battery life: 500 hours of continuous use
Size: 6" x 1.00" largest diameter
Weight: 70 grams
Waterproof mini ph tester (0.01 ph resolution)
- totally waterproof!
Features:
1.Used in ward and emergency treatment room for radiography.
2.Combined x-ray generator.
3.Single focus, full wave rectification.
4.Single-chip microcomputer controls and convenient service.
5.Liquid crystal display and error can be automatic warned.
6.Remote control exposure device.
Main technical parameter
A kind of new type toy, using it may strength your listening. You can investigate 24 hours a day, at any place, and hear the secrets you want to listen to. Make your dream of becoming a fªspyfª come true. The device is fit for all persons.
2140 Scientific Instruments Suppliers
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Our 6"-inch size brass sextant with a silver scale and vernier readout, magnifying lens, vernier locking system, rotating telescope, and six dark filters in antique or brass polish finish. The instrument is kept in a wooden box.
Size : 6 inches of the sextent only. Box size suitable to the sextent x 10 x 5.5cm
Weight : 0.800 kg.Only for sextent. Box weight extra
Our 8-inch brass sextant with a silver scale and vernier readout, magnifying lens, rotating telescope, and 6 dark filters in antique finish. It comes complete with a wooden polished box
Size : 8" only for sextent and box size suitable to the sextent.
Weight : 1.00 kg.
This is a beautiful 1m (100 cm) double barrel telescope and fine polished wooden tripod tilting stand. The 52 mm object glass produces a sharp image and enlarge its field. It is focused by rotating a large adjusting drum wheel near the eyepiece. A sighting telescope that can be adjusted from 9.5 to 13 inches (24 cm to 33 cm) in length, a main eyepiece on the primary telescope that extends over 2 inches for exact focusing. The tripod legs extend from a length of 37 inches (94 cm) to 63 inches (160 cm), so that the telescope can be positioned for comfortable observation. The telescope can be easily removed from the collapsible stand. The telescope itself has a full 360-degree horizontal range of motion around the tripod, and 180 degrees vertical.
The telescope is designed keeping in view the requirements of a nautical scope - i.E., greater field of view. More the magnification. The 52 mm lens gives the best combination of steadiness and field of view with magnification.This telescope has been designed as a terrestial scope and not for astronomical observations.
This 6" pullout telescope is is a functioning telescope with focus adjustment (by shortening or lengthening the pull out sections), and the optics are very good.
The brunton compass is a heavy solid brass or gun metal reproduction of a handheld european compass used in coal mines and for surveying purposes. The front sight folds up and the window in the lid serves as a rear sight. The compass has a needle lift and fixes mechanism to protect the compass when being transported.
Size : 3"
Weight : 0.400 kgs(only for compass)
1 glass inserts: the top is sealed with plaster and cork; the accuracy is controlled in f+1 line. (the testing comply with din16195 and jjg130-2004)
2 scale board: white, aluminum
3 material of protecting case: brass, carbon steel or stainless steel
