Jennings/JScale Mack 20 Precision Digital Scale 20 Gram Capacity... 0.002 Gram Resolution Innovative Design with Dual Display! There's a display on the front... ... and another one on the back. Weight readings on a scale can be thrown off by air currents. The Mack has a hinged wind screen to alleviate that problem. The JScale Mack is equipped with JScale's Patented WeighMeter™ to help prevent overloading the scale. A WEIGHMETER IN ACTION (for demonstration purposes... the Mack has a blue display and a 20g capacity :o) Here's what else I'll include: 20 GRAM CALIBRATION WEIGHT VIBRAKILL® PAD (The VibraKill® Pad reduces vibrations that can affect measurements.) POUR-OUT WEIGHING TRAY 4 AA BATTERIES TWENTY YEAR WARRANTY, WITH SERVICE WORTH BRAGGING ABOUT! If ya' ever have a problem with this scale (a real rarity) during the first TWENTY YEARS ya' own it, just send it to the Jennings warranty center RIGHT HERE IN THE GOOD OLD USA, and they'll either fix it, or replace it, and send it on it's way back to ya' within two working' days, guaranteed!

Here's what ya' wanna' know about WHAT YOU'RE GONNA' BUY: THE JSCALE MACK WEIGHS IN 8 MODES: Mode: Capacity: Resolution: Grams 20.000 g 0.002 g Grains 308.60 gn 0.02 gn Troy Ounces 0.6430 ozt 0.0001 ozt Ounces 0.7050 oz 0.0001 oz Pennyweights 12.860 dwt 0.002 dwt Carats 100.00 ct 0.01 ct Ticals 1.7100 t 0.0002 t Milligrams 20,000 mg 2 mg THE MACK IS EASY TO USE - ONLY 4 BUTTONS TO MESS WITH Ya' got your On/Off button... ya' got your Units button... ya' got your Zero (tare) button... and ya' got your Hold button. Reeeal simple stuff... no Brain Surgery courses required! CALIBRATING THIS THING IS A SNAP It just doesn't get any easier than this to calibrate a scale, folks. With the included 20 gram calibration weight, the Mack's calibration procedure is so easy, even Ol' Will can do it! THE MACK USES PATENTED "WEIGHMETER" TECHNOLOGY The patented "WeighMeter" will help keep ya' from overloading your scale. As ya' know, every scale made will go "kaput" if it's overloaded. There's an LCD graph on the display of this scale that gets bigger as ya' put more and more weight on the scale. The graph will say "OVERLOAD" when you've reached the maximum capacity of the scale. I'M EVEN THROWING IN A VIBRAKILL® PAD Did ya' know that any kind of vibrations on your weighing' surface (like from nearby music, machinery, etc...) can cause a scale's reading to bounce around from one weight to another? I'm throwing in a VibraKill® Pad to help kill those vibrations. DUAL LCD DISPLAYS... GREAT FOR THE CLASSROOM Not only are ya' getting an accurate, easy to use scale, the blue backlit Liquid Crystal Display is so big that even old farts like me can see it. The Mack has displays on both sides of the scale, so it's a great tool for educators. IT EVEN HAS A "TARE" FEATURE This scale has a tare feature that let's the display "zero-set" after ya' put an object on the scale. This MIGHTY TECHNICAL feature let's ya' measure the weight of the stuff inside a container. The scale actually subtracts the weight of the container to let ya' know the weight of the stuff inside. HOLD THAT WEIGHT This scale comes equipped with a HOLD feature. When you press the hold button, your weight stays on the display until you press it again. WHERE'S THE JUICE? Have ya' ever gone on a DAY-LONG journey trying' to find the right dang battery for your gadgets? Well, for the Mack, just go to your Corner Store and pick yourself up 4 AA batteries. AND, ya' won't even have to do THAT for awhile, because it comes with the batteries included. JUST HOW BIG IS THIS THING? The scale's base is 7.0" x 6.5", and stands 2.5" tall. The "pour out" weighing platform is 3.5" in diameter, and 0.7" deep. IT SURE IS USEFUL This high quality electronic didgital digatal digitle digatle didgitle didgatle didgatal digital tabletop jeweler's gemological balance for gems is very small in size. Reloading enthusiasts tell us these make great gun powder scales. It's fine for measuring the precise metric weight of gold, silver, precious metals, or detect error coins and rare coin. Jewelers can use this jewelry scale to weigh their jewellery pieces, or measure a jewel with it. It's great for lab projects in a laboratory. It's your best buy in a precision jewelery weighing scale. It's inexpensive (but not cheap :o) ... just another fine deal from OldWillKnott. SEEN THE PRICE OF SCALES LIKE THIS? GO HOCK THE KIDS. If ya' can even find one at the specialty stores, they're charging' an arm and a leg. Save a bunch, get treated right, and buy yourself a brand new JScale Mack from OldWillKnottScales!