Meter Drywall Wood
Meter Drywall Wood
Taking a Closer Look at Wireless Networking Cards
Ok, so you've read all the cool stuff and heard all the great things about going wireless and then it just hit you. However, that works you don't know or care but it hit you. That was it, the little voice in your head said, "do it" and that was that. Unfortunately, that was awhile ago and since that "moment" you've done your part. You did some research into what was needed to upgrade your computer but it's all just so darn confusing. You keep thinking, why can't someone just give me a few basics so I feel more comfortable about this whole "upgrading" process.
If the above paragraph describes you and if you're the typical computer user it probably does, then it's time to exhale, calm your nerves, grab a latte and settle in because hopefully this article can shed a little understanding on at least one aspect of going wireless - the network card.
Like most "typical" computers users, you love your computer and you've pretty good at surfing the net, using email and you've probably even gotten fairly proficient at using your favorite word processing program but when it comes to some of the more technical aspects of your computer or computing in general, you are probably about as close to a "deer in the headlights" as you can get.
Hey, no problem because you've stumbled across a source that hopefully can shed a little light into that wireless networking card abyss. See, those searching skills do come in handy.
Let me start out by saying that when it comes to selecting a wireless networking card you can pretty much ignore all the hoopla except for the following three key factors: range, speed, and standards. Ok, let's do it and take a look at a few specifics.
Below is a typical specification for wireless networking card. This one just happens to be for a Linksys wireless PCMCIA laptop card. Frankly, I can't tell you if this card rocks or it stinks, I'm simply using it as an example. And with that, let's take a closer look.
Here's the description from Amazon: 11 Mbps high-speed transfer rate; interoperable with IEEE 802.11b (DSSS) 2.4Ghz-compliant equipment; plug-and-play operation provides easy set up; long operating range (up to 120m indoor); advanced power management features conserve valuable notebook PC battery life; rugged metal design with integrated antenna; compatible with virtually all major operating systems; works with all standard Internet applications; automatic load balancing and scale back; model no. WPC11
Like I mentioned above, most of the specs can be ignored. To start with, "compatible with virtually all major operating systems." That means nothing. It's simply fluff to expand the description to make the card appear better.
Range
Take a look at where it says "up to 120m indoor". This means that the maximum range of the wireless card is 120 meters -- sure if everything was perfect. And by the way, one meter is equal to about 39 inches or 3 feet. However, in the real world where nothing is ever perfect interference caused by thick walls, other power sources and the list goes on could reduce this number by as much as 90% - so just be aware of this.
And without enough range, your wireless network is no longer wireless and therefore - worthless. It serves no purpose to go wireless if you have to keep your computer next to the wireless port in order for it to work or if you have multiple computers to keep them all in the same room to get them to connect to each other.
As a rule of thumb, unless your walls are made of drywall or wood, it's best to buy about four times the strength you think you'll need. Even in perfect conditions, get twice what you think you'll need - just to be safe.
Speed
Take another look at the description and find where it says Mbps. Mbps is the speed of the wireless connection - 11 Mbps is about one and a half megabytes per second. All 802.11b wireless cards have a speed of 11Mbps, while 802.11g cards run at 54Mbps or nearly 5 times faster. And of course, the next generation will be even faster.
Clearly, speed is important to your wireless network because it's going to directly influence how long you have to wait to connect, how fast pages upload, file transfer rates, and your overall computer experience is always better when things download faster. I don't know about you but if something takes more than a few seconds to download, I start to get impatient.
However, because there are currently very few Internet connections running at speeds over 11Mbps - it's really as much as you need, at least for now.
Standards
You've probably noticed in the above specs the number 802.11 followed by a letter b. The b is the standard that the wireless device conforms too. Currently, there are 3 standards - a, b and g.
In a nutshell, 802.11b and 802.11g are compatible with each other while 802.11a isn't compatible with either. Due to the incompatibility issues with the other two standards and because it's an older less robust standard I would stay away from cards using it.
Between b and g, b is cheaper but slower, while g is more expensive but faster. It's also worth considering that adding a b-speed device to a network that has g-speed devices will often slow the whole network down to b-speed, making the g-devices pointless. Basically, the network will operate at the speed of its weakest link.
If your wireless device doesn't conform to the right standards, it's not going to be much good to you. I often see uninformed people bidding for used wireless equipment on eBay, not realizing that it's going to be terribly slow and may not work with other equipment they might have. Always check what standard the wireless equipment is using and if you don't know the 802.11 letter, don't buy it!
A great place to research and find answers to everything "wireless" is Zephyr Net. Simply click the Wifi Hotspot link in the resource box below.
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TRAMEX MRH Complete Moisture and Humidity Meter
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 General Tools MMD4E Digital Moisture Meter List Price: Sale Price: $38.45 You save: $11.50 (23%)  Eligible for free shipping!Availability: Usually ships in 24 hours See Reviews For This Product DescriptionThe Moisture Seeker MMD4E handheld Digital Moisture Meter is a must for every household to find moisture before it becomes a costly problem! Check wood, drywall and concrete before painting, sealing or treating and Locate and identify water leaks in roofs, floors & walls. The MMD4E is ideal for homeowners, woodworkers, contractors and home inspectors to check moisture content in building material and wood. Large LCD screen and big digits make it easy to read. Press clearly-marked buttons to choose between wood or building material, to set alarms and to hold readings. Wide measuring range, choice of material and sturdy steel pin make it a versatile and durable investment in moisture monitoring and measuring. Includes 9V battery and instruction manual Features
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 Sonin 50211 Rapitest 10% to 28% Pinless Analog Wood, Concrete, Plaster, Carpet, and More Moisture Meter List Price: Sale Price: $26.87 You save: $13.12 (33%) Eligible for free shipping!Availability: Usually ships in 24 hours See Reviews For This Product DescriptionContact probes are on a 3-foot coiled cable for detecting moisture in hard to reach spots. The 10-point scale corresponds to moisture levels from 10 to 28%. Scale and reference chart correlate relative and moisture percentage readings. Requires one 9-volt battery (not included). Instruction sheet included Great for inspectors, contactors, and homeowners Find out if potentially damaging excess moisture is present Test hard or soft wood, concrete, plaster, carpet, and more to determine the extent of moisture problems. Locate and trace roof leaks and water seepage; assess the extent of wet rot and hidden condensation. Use it to check surfaces before painting, wallpapering, or laying floors or tile. Helps you to select drier lumber. Contact probes are on a 3-foot coiled cable for testing in hard to reach spots. Dual reading scale gives relative (1 to 10) and moisture percentages (10 to 28%) readings Requires one 9-volt battery (not included). Instruction sheet included 1-year warranty Features
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 Moisture Encounter Plus Non-Destructive Moisture Meter by Tramex Sale Price: $330.00 Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionItem Number: TR115 The Moisture Encounter PLUS is an upgraded version of the worlds most popular and successful non-destructive moisture meter the Moisture Encounter. The Moisture Encounter PLUS incorporates all the features and benefits found in the original Moisture Encounter such as: Non-destructive moisture measurement of wood, plaster, drywall, block, brick, roofing and most materials found in the building envelope using 3 ranges of sensitivity. Deep signal penetration to detect elevated moisture through most covering materials such as Ceramic tile, Drywall, Carpet, Vinyl Flooring, VCT, Floor Laminates, Wall Coverings, Roofing Membranes and Coatings without having to damage or puncture the materials being tested. Rubber electrode pads in direct contact with material being tested for better sensitivity and depth of signal penetration. In addition to all the features found in the Moisture Encounter the New Moisture Encounter PLUS makes moisture measurement and evaluation faster, accurate and more versatile with the following enhancements: Deeper signal penetration up to over 1 into the materials being tested. Larger clear easy to read display giving meaningful readings. Useful for taking readings when the meter face is not visible. Switch-able On or Off audio warning tone. Automatic Power Cutoff switches Off when not in use. The new Moisture Encounter PLUS incorporates the latest digital technology with analog read out and ease of use. Features
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 Delmhorst BD-2100 6% to 40% Digital Pin Wood and Sheetrock Moisture Meter Sale Price: $325.00 Eligible for free shipping!Availability: Usually ships in 24 hours See Reviews For This Product DescriptionItem Number: DEBD2100 Instrument is supplied with extra #2497/A-100 contact pins and instructions in a hard carrying case. Features: Designed to check moisture levels in wood, concrete, EIFS, sheetrock, and other materials Resistance technology recognized around the world as the most accurate method for measuring moisture 6%-40% moisture range on wood 0.2%-50% moisture range on gypsum 0 to 100 relative scale for all other non-wood materials Digital readout Easy one-hand operation Includes (1) 9-Volt Battery Includes sturdy carrying case Proven microcontroller circuit One-year warranty Over fifty years of proven quality, accuracy and service A highly versatile moisture meter, the Delmhorst BD-2100 Moisture Meter checks moisture levels in wood, drywall, concrete, and more. Perfect for professional contractors, this handheld meter includes three scales--wood, reference, and gypsum--with broad moisture ranges. With a special set-point feature, this meter allows you to preselect an MC (moisture condition); it then alerts you when the MC has been reached..caption {font-family: Verdana, Helvetica neue, Arial, serif;font-size: 10px;font-weight: bold;font-style: italic;}ul.indent {list-style: inside disc;text-indent: 20px;}table.callout {font-family: Verdana, Helvetica, Arial, serif;margin: 10px;width: 250;}td.callout3-c26 {height: 100 percent;background: url('http://g-ecx.images-amazon.com/images/G/01/th/content_26/Q1_2009/c26-callout3.png') repeat-y;border-left: 0px solid #999999;border-right: 1px solid #999999;padding: 10px;width: 250px;}ul.callout {list-style: inside disc;text-indent: -5px;font-size: 12px;line-height: 1.5em;}h5.callout {text-align: center;}img.withlink {border:1px black solid;}a.nodecoration {text-decoration: none}The Delmhorst BD-2100 6- to 40-Percent Digital Pin Wood and Drywall Moisture Meter features:A set-point alert for pre-selecting moisture conditionsA broad measurement range of 6 to 40 percent to cover a variety of conditionsThree scale types for use with wood, drywall, and non-wood building materialsThe B-2100 displays results quickly and accurately on a bright digital readout screen.View larger.Three Scales for a Full Range of ApplicationsThe Delmhorst BD-2100 delivers accurate moisture readings, so you can sign off on your inspection with confidence that the site is dry. With its range of capabilities, the meter can be relied upon in a broad array of settings, home inspections to restoration jobs. And with three scales, the meter can be used on wood, drywall, and a variety of other non-wood building materials.Wood Scale for Flooring and Building MaterialsThe meter's wood scale gauges moisture from 6 to 40 percent--measuring from dry conditions up to the fiber saturation point (about 24 to 30 percent). The large range means the meter can be used in high-humidity or low-humidity environments and on a variety of locations, such as wood studs, floor joists, subfloors, and EIFS (Exterior Insulation and Finish Systems).Gypsum Scale for DrywallThe meter's gypsum scale is designed for use with gypsum board, which is also commonly known as drywall or plasterboard. Its broad moisture range of 0.2 to 50 percent covers a variety of gypsum types, letting you achieve ideal results on your next construction or inspection project.Reference Scale for Concrete, Plaster, and InsulationThe Delmhorst BD-2100's reference scale expands your moisture-reading capabilities, allowing you to check moisture levels in non-wood materials such as concrete, plaster, and insulation--a particularly handy feature for restoration projects. This scale reads from 0 to 100 on a relative basis to accommodate a variety of non-wood materials.Set-Point Alert Lets You Preset Moisture ConditionsOne of the handiest features of the Delmhorst BD-2100 is its set-point alert function, which allows you to preselect an MC (moisture condition). Once the MC is reached, the set-point alerts you with a buzzing sound, giving you the precision you need.Digital Readout Screen Displays Results Quickly and AccuratelyThis meter works quickly to display accurate results on its clear, easy-to-read digital screen, so you can view the readings with ease. The meter averages up to 99 accumulated readings, giving you a big-picture view of your current job.Pin-Type Meter with Electrode Connector Delivers Superior ResultsThe Delmhorst BD-2100's pin-type meter uses two pins that penetrate wood and other building materials to a depth of 5/16 inch. Pin-type meters provide more accurate readings than surface meters because their tips come into direct contact with the material being measured. If you ever deal with materials that have been exposed to surface moisture, a pin meter is the best measurement tool because its readings are not skewed by this factor.Plus, the Delmhorst BD-2100 is built with a special connector for an external electrode, such as the Delmhorst 26-ES (sold separately), which allows you to take surface and core moisture content readings to a maximum depth of 1-1/16 inch.The Delmhorst BD-2100 is backed by a one-year warranty.What's in the BoxBD-2100 Moisture MeterWith case (order as BD-2100W/CS): Delmhorst BD-2100 6 to 40-Percent Digital Pin Wood and Drywall Moisture Meter, carrying case, and extra contact pins for the meter. Features
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 Lignomat MINI-LIGNO S 6% to 20% Pin LED Wood, Plaster, and Drywall Moisture Meter List Price: See Reviews For This Product DescriptionThe Lignomat Mini-Ligno S 6-to-20-Percent Wood/Plaster/Drywall Moisture Meter gives instant accurate moisture readings between 6 and 20-percent indicated by bright red lights. Designed for inspectors, architects, contractors, painters, and homeowners, the meter is a useful tool to measure moisture in wood and soft building materials such as drywall, plaster and gypsum. Features include a green cap that serves as a handle for easy probe insertion and covers the pins during transportation. Longer pins are stored inside the meter for measuring thicker material. The short pins are ideal for surface or end cut readings and for veneer. To obtain moisture readings the pins are pushed into the wood and the unique on-off switch between the pins turns the meter on. Bright LED lights instantly indicates moisture percentage. Features
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