![]() ![]() ✔ IDEAL For The Job That Requires A Straight Line Or Accurate Measurement.✔ IDEAL For The Job That Requires A Straight Line Or Accurate Measurement.(Ideal for building some Thanksgiving decorations and Christmas decorations).✔ BACKUP BATTERY - ships with 3 x AG 13 button-cells battery, just to make sure you keep going with maximum convenience.✔ 8-FOOT Measuring Tape - comes loaded with an 8-foot measure that includes imperial and metric linear measures, with graduations down to 1/32" and 1mm.Regardless of the situation, it's completely plug & play. ✔ WORKS FOR INDOOR - designed for any situation where a straight line or accurate measurements are needed, such as measuring locations on a wall, space between hangers, level the nails.✔ 3-PRONGED APPROACH - combines a fine-tuned tape measure, a triple-positioned leveling bubble and a NEW laser level to provide maximum results.(Note: Laser Ranging Error,that is given as "+/-2mm at 10m and 25m" If the laser is the Vertical Level or the Horizontal Level, you shouldn't adjust the Beam.).Some of them are Tajima H1550MW (5 meters) and Gatortape (14 feet).Adjustable Standard and Metric Tape Ruler Unfortunately, this tape measure is not heavily available on the market. ![]() If you are looking for the Class I tape measures, you can find them marked as Class I by the manufacturer. Whereas, as the level of desired accuracy decreases and cost-cutting increases, the user should shift towards Class II and Class III tapes that are more abundantly available and less costly. For industries that are involved in manufacturing precision engineering parts and components, a high level of accuracy is important, and therefore Class I tapes are required. The choice of each class of tape measure is purely dependent on the area of their application and the type of industry. If the tape’s length is 30 meters, and it’s off 12 mm, it’s still qualified as Class III. That means it’s only allowed to be off 4.6 mm either negative or positive of the 10-meter tape measure. This class allows a tolerance of ±4.60 mm. Heat exposure may expand the tape material. The accuracy provided by the class III tape measure is around ±4.60 mm over 10 m lengths. Such tape measures are used in non-critical applications which do not require such high standards of accuracy in the results they provide. The Class III tape measure are responsible for the least level of accuracy in the measurements. a length of at least 2.5 mm (0.10 in) in which, exclu. 2.5. standards on magnetic tape at 32 bits per millimeter (800 bits per inch) using phase encoding. This is why class III tape measures are less abundant than class I. Good accuracy 1:10,000 Various length (30 m) heavy duty, light weight Coefficient of thermal expansion 12 10-6/Co Invar wires: 36 nickel 64 steel very low coefficient of thermal expansion good for precise work. So, they are preferred by industries and professionals for daily non-critical measurement tasks. That means if your 10-meter-long tape measure is actually 9997.5 mm (off 2.5 mm), it’s surely not class II.Ĭlass II tapes are easily accessible to the general users and do not lack far behind Class I tapes in terms of accuracy. A class II tape measure should be accurate to about ☒.30 mm over 10 m lengths. Most tape manufacturers make class II tape measure as a multi-purpose tape measure that is suited to a wide variety of daily applications. It’s not qualified as class I if it’s off of that range. On a tape measure that has both centimeters and inches, each mark at the bottom is one millimeter (mm), and there are 10 mm per centimeter. If it’s 9999 mm (off 1 mm only), it’s qualified as Class I. ![]() ![]() That means, when you check the accuracy of a tape measure, per 10 meters, it has to fall between the numbers 9998.9 mm and 10001.1 mm. A class I tape measure is accurate to about ☑.10 mm over 10 m lengths. Professionals abundantly require this type of tape measure because it offers an extra level of accuracy, which class II and class III type of tape measures do not provide. As for retractable tapes, Class I tapes are the most accurate ones, whereas Class II tapes are the most commonly available in the market. If the tape measure is certified, it has the class printed on it and other symbols, including the length of the tape, year of manufacture, name of the manufacturer, and country. If you are on your way to finding the most accurate tape measure, then this reading is for you. The EU weight and measures the classification of tape measures into grade I, grade II, and grade III. To be clear, this classification of each tape measure primarily depends on their ability to follow the standards of accuracy tolerance and margin error. The difference in class among various tape measures accounts for the difference in their respective accuracy. When buying a tape measure, it’s important to consider what class of tape measure is suitable for your project. ![]()
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