"Low cost capacitance digital pocket scale"
The Proscale CP120 is a basic digital pocket scale that uses a capacitance weighing system. Capacitance is an older type of weighing system that is mostly used by Tanita brand scales. Capacitance for the most part is not as accurate as a load cell weighing system, but it's much more durable. Indeed it is virtually impossible (within reason) to damage a capacitance system via overload or reasonable shock. Another benefit to Capacitance weighing is that the power requirements are about 70% lower then a load cell. Thus battery life is extremely long, especially given the smaller, low power LCD display.
The Proscale CP120 is therefore an extremely durable scale, you can overload it, sit on it, drop it, all without causing any damage to the weighing mechanism*. The design of the CP120 is very basic. It's a regular "old style" rectangular thin black pocket scale with a large weighing tray, two operation buttons, and a small LCD display. It's basic, but provides an adequate design for most weighing functions. It lacks the flaws of other pocket scales that have recessed trays (leading to embedded dirt and eventual damage). Indeed the only negative things we can say are that the scale is quite boring in appearance and function.
The performance of the CP120 was within specifications. We calibrated the scale and then ran through our standard series of tests. All numbers were within +/- 0.1 gram as long as we placed the items in the center of the tray. We did experience a 0.2 gram variation in 2 of the far corners at higher weights (so if you buy one of these scales place all items in the center of the tray for optimum accuracy). Drift was minor and within tolerance (no drift within 40 seconds).
Thumbs Up, but this scale really is a "snoozer".
Recommendations: As noted above, if you can afford to spend a little more for a better model that comes with accessory trays or other features such as rechargeable batteries, then we do suggest doing so. However, this scale gives quite a bit of bang for the buck.
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*Within reason - we stepped on the platform, dropped the scale from 4 ft, all without any damage except for cosmetic.
Important Disclaimer: Scales are sometimes difficult to compare. Our results are just a sample of tests done at random conditions. The actual operating conditions of your scale may vary from our test conditions and your results may differ from our results. We did our best to test the scales in a blind and unbiased manner. We receive advertising and other consideration from companies that support this site. We do our best to not allow this to affect the results of our tests and evaluations. However, we strongly recommend that you do your own comparison tests in your actual operating environment to determine which scale is best for your needs.
The terms PalmScale 7.0 and all are trademarks or trade names of their respective parties. Names are used for comparison purposes only and for the purposes of this article.