Accuracy is, unsurprisingly, defined as the degree to which the measurement given by the scales relates to the true value. This is usually defined as a +/- (number) (% or weight unit). For example, if you put a 100g weight on the scales and the display says 100.5, the accuracy would be +/-0.5% or +/-0.5 grams. Accuracy is almost entirely dependent on how well the scales are calibrated.
Precision is not just another word for accuracy! It actually means the degree at which the scales give identical readings when weighing the same (known) object under the same conditions. It is sometimes also referred to as repeatability. As with accuracy, precision is expressed as a +/- (number) (% or weight unit).
It is possible for scales to be accurate but not precise, or vice versa.
Readability is the smallest increments that the scales are able to display. This usually ranges from 0.001g to 1g. As an example, if 2lbs (907.184g) is weighed on a 0.001g readability scale, it will show as 907.184g whilst on a 0.1 g readability scale it will show as 907.2g.
Most electronic pocket scales have a capacity of between 100 and 200g, although some can go as high as 1000g. It is important not to overload digital scales as this can potentially destroy the load cell. Therefore, it's always wise for users to opt for a maximum capacity which is a little bit above what they really need.
When it comes to pocket scales, divisions are the number of possible increments that a scale can show. It can be calculated by dividing the capacity by the readability. For example, a scale that has a 200g capacity and a 0.1g readability will have 2000 divisions (200/0.1).
As well as cost, it is important to consider the specifications (capacity, accuracy, and precision), the material they are made from, and their size and weight. Also usage will come into play when deciding things like readability and maximum weight.
There are a number of factors that can cause inaccuracy or errors (E) in digital scales. In addition to incorrect calibration, the most common are: accumulation of dust, being stored at an unsuitable temperature (or exposed to high-levels of UV rays), being used in a humid environment, air currents or drafts, and air buoyancy.
This depends on how many you buy and the quality of the scales you opt for. Prices start as low as £3 each (assuming a minimum order quantity), whilst some of the top-of-the-range models can cost £15 or more.
Vapouron electronic scales offered by JM Wholesale boast a range of features designed to meet various weighing needs. The Vapouron TPB Series, for instance, provides six weighing modes (g, oz, ozt, dwt, gn & ct), catering to diverse measurement requirements1. These scales typically include an auto-off function to conserve battery life and a backlit display for easy reading in various lighting conditions. The Vapouron CS Series offers a capacity of 200g with a precision of 0.01g, making it suitable for applications requiring fine measurements1. Many models in the Vapouron range also feature a compact design, making them ideal for portable use. The inclusion of multiple weighing modes and high precision demonstrates Vapouron's commitment to versatility and accuracy in their electronic scale offerings.
On Balance electronic scales stand out in the JM Wholesale collection for their combination of precision, durability, and user-friendly features. The On Balance Myco series, for example, offers scales with capacities ranging from 100g to 1000g, with readabilities as fine as 0.01g1. These scales typically come with multiple weighing modes (g, oz, ct, gn, ozt, dwt), providing versatility for different weighing needs. A key feature of On Balance scales is that they come ready calibrated, saving time and ensuring accuracy out of the box1. The On Balance Tuff-Weigh series is particularly notable for its robust design, making it suitable for more demanding environments. Many On Balance models also feature stainless steel weighing platforms, enhancing durability and ease of cleaning. Compared to other brands, On Balance scales often offer a good balance between professional-grade features and affordability, making them a popular choice for both personal and commercial use.
Digital scales with 0.01g graduation, available at JM Wholesale, offer several significant advantages for users requiring high precision measurements. These scales, such as the Kenex Glass Scale 100 and the Vapouron CS Series, provide extremely accurate readings, making them ideal for applications where even slight variations in weight are crucial2. The 0.01g graduation allows for fine measurements of small quantities, which is particularly useful in industries like jewellery making, pharmaceutical compounding, or scientific research. Many of these scales, like the On Balance Square Scale, come with multiple weighing modes, enhancing their versatility2. The high precision also means these scales can detect minute changes in weight, which is beneficial for portion control or ingredient measurement in cooking and baking. Additionally, the digital display on these scales ensures easy and clear reading of measurements, reducing the likelihood of errors compared to analog scales. While these high-precision scales may be more expensive than less accurate models, they offer unparalleled accuracy and reliability for users who require exact measurements in their work or hobbies.