Mastech HY3005D Variable Linear Lab Power Supply 0-30V 0-5A

 

Mastech HY3005D Variable Linear Lab Power Supply 0-30V 0-5A, Specification:

• Two level of control for both current and voltage outputs: coarse and fine for ease of use
• Adjustable outputs: 0-30V and 0-5A
• Input voltage: 110V AC switchable
• Ripple noise: CV <= 0.5 mV RMS, CC <= 3 mA RMS
• Warranty: 1 year

• Brand Name	Mastech
  Mfr Part #	HY3005D
  UPC	859718004783 , 616932235054
  EAN	0859718004783 , 0616932235054

Two level of control for both current and voltage outputs: coarse and fine for ease of use Adjustable outputs: 0-30V and 0-5A Input voltage: 110V AC switchable Line regulation: CV <= 0.01% + 1 mV, CC <= 0.2% + 1 mA Load Regulation: CV <= 0.01% + 3mV, CC <= 0.2% + 3 mA Ripple noise: CV <= 0.5 mV RMS, CC <= 3 mA RMS Protection: constant current and short-circuit protection LCD reading accuracy: +/-1% for voltage and +/-2% for current Environment: 0-40C, relative humidity < 90% Size: 11.5" x 6.5" x 5.5" Weight: 13 lbs Warranty: 1 year 

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Customer Reviews

These identical meters get branded as Mastech, Elenco and Sinometer. (Gee, do you think "SINOmeter" is a Chinese company ?) As far as I can tell, the 3 brand names differ only by their labels. Their actual single manufacturer is unknown and hidden like most red Chinese electronics products (Think Apple iPad, iTablet, etc., etc.).

The CURRENT LIMITING function is also very good. THIS IS NOT A CURRENT ADJUSTMENT CONTROL ! The output terminals are very solid, but their bare wire thru-holes on the terminal posts to be far too small for practical use. (This limitation is something that careful use of a drill will cure.)

The rear case plate has attached to it a HUGE HEAT SINK, AS IT SHOULD. Watch out for any sharp corners ! Dulling the sharp points with light use of a fine file may be in order.

The pots are very smooth and provide an intentional, even friction that allows precise hand-adjustment. The meters are very accurate as far as having only 3 digits. If you want more voltage and current monitoring precision, then you are supposed to already know that you need to use external high precision meters !

Oakton EcoTestr pH 2 Waterproof pH Tester

Oakton EcoTestr pH 2 Waterproof pH Tester, 0.0 to 14.0 pH Range , Specification & Features

• Push-button calibration capabilities up to three points for a wide range of results
• Automatic Temperature Compensation (ATC) for accurate readings in fluctuating temperatures
• Transparent, protective cap keeps sensor moist when stored upright, and used as container for sensor conditioning or on-site calibration
• Waterproof, dustproof housing is Ingress Protection (IP) 67-rated, for protection against solid objects or liquids
• Large, upright, single-line LCD display screen for ease of viewing, and for display of indicators

• Brand Name	Oakton
  Mfr Part #	WD-35423-10
  Pkg Qty	1
  Display	LCD
  Item Weight	1 pounds
  Measurement Type	pH , Temperature

  Overall Height	1-1/8  inches
  Overall Length	1-5/8  inches
  Overall Width	6-1/4  inches
  Specifications	0.0 to 14.0 pH Range
  UNSPSC Code	41115603

   
  
   

Customer Reviews

I've used this for about the past month for my pool. It does come out of calibration by about one-tenth every other week. It is easy to calibrate. Sometimes it's slow to adjust and I've watched the meter inch all the way from 6.0 before settling on 6.7! Maybe that's just an isolated case. The probe on this model is not replaceable, but for the money, its way ahead of those cheaper variations. I just wish the cap was waterproof, it's tight but seems to leak a little bit.

AmScope A2X 2X Achromatic Microscope Objective

 

AmScope A2X 2X Achromatic Microscope Objective, Specification:

• 2X Achromatic microscope objective lens fitting common size (DIN/JIS standard) compound microscopes
• 2X Magnification Power
• DIN Standard Achromatic Objective Lens
• 0.05; 160/-
• 20mm Mounting Thread (in diameter)

Customer Reviews

Usually the lowest magnification of a microscope is 40x. Sometimes you need a lower magnification, e.g. to take a picture of a larger part of a slide. This is what I use this objective for. It fits any microscope (at least made by Amscope) since it has a standard mounting thread. However one has to be aware that it cannot be used with any microscope because of its focal distance. For example it cannot be used with an Amscope PZ-300T (originally equipped with plan achromatic objectives) but works with a M500 (achromatic objectives). Plan achromatic objectives have a much larger flat field than the achromatic ones, but work at a larger distance from the stage. 

Dino-Lite Premier Digital Microscope

 

Dino-Lite Premier AM4113TL-M40 1x~37x LWD Digital Microscope, Specification:

• 1x-5x, 5x - 37x Variable Magnification
• 1.3MP vivid color resolution
• Measuring software with calibration slide
• PC/Mac compatible, Microtouch image capture
• 2 year warranty

• Brand Name	Dino Lite
  Mfr Part #	AM4113TL-M40
  EAN	4712805472734
  Item Weight	1 pounds
  Pkg Qty	1

   

Description Of Dino-Lite Premier AM4113TL-M40 1x~37x LWD Digital Microscope

The 1.3 MP Dino-Lite Pro AM4113TL-M40 handheld digital microscope is a specialty microscope that offers 1x-5x and 5x-37x variable magnification with wider field of view than the similar AD4113TL model. It is particularly useful where low levels of magnification are required. The microscope uses the second generation housing with smoother thumb wheel adjustment and magnification scroll lock to fix your desired level of magnification. An improved USB cable attachment provides greater resistance to pulls and twists. Standard features include 1.3 MP vivid color resolution with measuring software and calibration slide to ensure accuracy. Illumination is provided by eight white LED lights with ON/Off switch while the microscope also includes the Microtouch image capture trigger for convenient snapshots. Simply tap the button on the housing or use a mouse click to to take a picture. The microscope is PC/Mac and UVC compatible with high speed USB 2.0 output. Includes digital microscope, software CD, calibration slide, deluxe storage bag.

Celestron 44104 500x Power Advanced Biological Microscope

Celestron 44104 500x Power Advanced Biological Microscope, Specification:

• Fully-coated glass optics, all-metal body with monocular head
• Abbe condenser, iris diaphragm, and LED Illumination - 110volt AC for light control
• 10x and 12.5x eyepieces and 4x, 10x, and 40x objective lenses
• Adjustable arm from 0 to 60 degrees provides comfortable viewing
• Five prepared slides and mechanical stage
• Intermediate-level 500x power biological microscope with five prepared slides included
• 4x, 10x, and 40x objective lenses with 10x and 12.5x eyepieces - view specimens at 40x, 50x, 100x, 125x, 400x, or 500x magnification 
• Fully coated glass optics, all-metal body with monocular head 
• Mechanical stage, Abbe condenser, iris diaphragm, and 110-volt LED illuminator 
• Coarse and fine focusing knobs, adjustable arm (0° to 60°) for comfortable viewing

 Customer Reviews

Just got this microscope yesterday. It's amazing. Originally I had planned to spend more money on a scope with 1000x magnification power, but when I learned that this one could be upgraded, I decided to save some money and avoid the difficulty of dealing with oil immersion. I am very impressed with what you can see at 400x and 500x, and with such clarity. Also, the mechanical stage is great. I didn't think of the mechanical stage is a deciding factor when choosing a scope, but now that I've used it I can't imagine not having it.

I want to give this product 5 stars, except that, as others have said, this seems like it could be a fire hazard. I actually feel very fortunate that I had read the other reviews that mentioned this danger, because otherwise I probably would not have taken any precautionary steps. Because I read those reviews, I chose to put my microscope on top of a cork coaster when using the lamp. Sure enough, when I moved the microscope aside, you could see that the coaster had started to become discolored under the lamp! That could have been my table.

Other than that, the only other complaints I have is that this does not come with any blank slides, and the lamp does not have a switch, but these are small issues that do not affect my rating. As long as you're careful not to leave the microscope unattended when the lamp is on, you won't be disappointed.

Celestron 44313 Micro Fi Wi-Fi Microscope

 

Celestron 44313 Micro Fi Wi-Fi Microscope (Gray), Specification:

• Ergonomic handheld digital microscope with up to 80x magnification ^Internal Wi-Fi module for connecting to a smartphone or tablet with free app for both Apple and Android devices. Signal range up to 30 feet. ^Connect up to 3 devices at once ^Adjustable 6 LED ring illumination ^Can also be used as a surveillance camera. 1/4-20 threaded insert for mounting to tripod or stand.
• Ergonomic handheld digital microscope with up to 80x magnification
• Internal Wi-Fi module for connecting to a smartphone or tablet with free app for both Apple and Android devices. Signal range up to 30 feet.
• Connect up to 3 devices at once
• Adjustable 6 LED ring illumination
• Can also be used as a surveillance camera. 1/4-20 threaded insert for mounting to tripod or stand.

 

 

Customer Reviews

I have been using the Celestron Micro Fi wireless microscope for about a week now and have found it to be very versatile and easy to deploy. The addition of my lightweight tabletop tripod expands its uses even further. The built-in light source is a very nice feature. The ability to see its images on a large screen (tablet, laptop) is great and makes it a useful tool to collaborate with others easily. As a retired criminal investigator, I see this as a very useful tool. Given the increasingly microscopic nature of crime scenes, the Micro Fi would allow an investigator to quickly survey a scene to determine the need to call in expert technicians, or not, thus extending resources. Items of interest could be shared and discussed with office-based experts by wi-fi or email. The compactness and low cost of the unit would make it easily available to field investigators who would otherwise not have such technology available. I highly recommend this device.

OMAX LED 40X-2000X Digital Binocular Biological Compound Microscope with Built-in 3.0MP USB

 

OMAX LED 40X-2000X Digital Binocular Biological Compound Microscope with Built-in 3.0MP USB Camera and Double Layer Mechanical Stage, Specification:

• 8 levels of magnification: 40x-80x-100x-200x-400x-800x-1000x-2000x; 4 achromatic objectives DIN 4x, 10x, 40x(S), 100x(S,Oil); 2 pairs of eyepieces: WF10X and P20X
• Built-in 3.0MP USB camera with advanced software for Windows; Mac users may use Photo Booth
• 3W intensity adjustable LED light; Double layer mechanical stage with co-axial fine and coarse focus knobs
• NA1.25 Abbe Condenser with iris diaphragm and filters; OMAX New Technology Bright LED Transmitted (bottom) Light
• 5 Year Warranty against Manufacturing Defects

Brand Name	OMAX
Mfr Part #	CS-MD827S30L
UPC	670541471296
EAN	0670541471296
Pkg Qty	1

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This is a digital binocular compound LED microscope with the power range from 40X to 2000X.

Customer Reviews

I have used many microscopes that cost 5 to 10 times more than this smaller version and I would recommend this to anyone who needs to do biological or metallurgical work at magnfications from about 40X to 2000X. I used a calibrated grid to calibrate all of the lenses with the computer that I am using, which is a Windows 7 Professional driven Compaq. It is very easy to set up and use but you need to go on-line to get the most recent manual. There is a paper in the box that lets you know exactly where to find this. It is important because the manual this is in the CD is not for this microsope. If you are going to use this as a metallurgical microscope (not using tranmitted light but using reflected light) there is no through lense lighting. You will need to have an outside light. I purchased the AMScope LED-8WD from Amazon to go with this microscope.

I had read a review that says you can not run the software on a Windows 8 machine. That is true if it is Windows 8RT but not a true Windows 8 machine. I installed the software on two of my Windows 8 computers and it works very well. You may have an issue with the drivers because windows installation may say that it is incompatible. Ignore this and make sure that you install the drivers for the camera before you plug in the USB cable. When installing the software leave the USB unplugged until you get a message saying that you need to plug in the camera. I would be happy to share more about this if you get into trouble.

As an additional note: I also purchased the AmScope 20x-40x-80x Digital Stereo Microscope with top and bottom illumination. Which is another great microscope with digital camera lense. You have to remove the lense from the body and it is held in there with a very small phillips screw