A stack light and audible alarm alert you when packages, products, and parts are too heavy or too light. Also known as check weighers, these scales verify quality and consistency in packing, parts machining, and other activities. Set your weight range, and the stack light tells you if an object is OK to go using three colored lights: one for too heavy, one for too light, and one for just right. Specific measurements appear on a bright, backlit LCD.

The scale's memory stores up to 10 weight ranges, so you can switch from one range to another as your tasks change. In counting mode, the scale tallies the total number of parts based on the weight of a single part. When using a container to hold small items, press the tare button to reset the scale to zero. To print or transfer data to a computer, connect an RS-232 computer cord (not included) to the scale's DB9 port.

Quickly measure package dimensions to calculate shipping costs with these NTEP-approved scales. Simply place an item within the scan zone and they’ll give a readout in one-fifth of a second. They measure not only standard boxes and flat packages, but also irregularly shaped containers such as polybags. To transfer data to a printer or computer, connect an RS-232 cord (not included) via the DB9 port. These scales are compatible with UPS Worldship and other common shipping software. To calculate both weight and dimensions, use them with a weighing scale (sold separately).

Quickly weigh the moisture in an object or substance. Also called moisture analyzers, these scales help with a variety of tasks, from measuring the liquid content of concrete to the concentration of medications. They work by weighing your sample before and after it’s been dehydrated to determine its moisture percentage. A halogen light or carbon fiber heating element quickly and evenly heats samples inside a reflective chamber.

Use the quick setup function to automatically analyze a sample and create a testing method. These scales have a standard drying speed setting that heats your sample without over drying it. Use the fast setting to quickly heat the chamber to drying temperature, however this setting is more likely to over-dry a sample. To stop a test, there are three different modes—manual, automatic, and timed. Automatic mode allows you to set your own criteria to stop the test once moisture loss is no longer detected. To zero the scale after a weighing pan has been placed on it, simply press the tare button. Print your measurement data or send it to your PC using a USB or RS-232 cord (not included).

These testers come with a reusable pan to place your sample in. For samples that could spit and spatter when heated, place your sample on the rough side of the included fiberglass pad. Use a disposable aluminum pan (sold separately) for samples that are difficult to clean.

Measure tension force as well as weight. These gauges come with a calibration certificate traceable to NIST that states they've passed a test for accuracy. All are NEMA 4X rated for protection from dust, water, and mild corrosives. They can be manually reset to zero and have a peak-hold setting that retains the highest reading on the display when activated. Also known as dynamometers.

Monitor torque as you apply it—these gauges mount between your torque tool and your fastener. Engage the fastener to track both torque and the angle of rotation for each crank of your tool (snug torque) before you've reached the final torque. This gives you a better idea if fasteners are consistently tightened than measuring torque alone. These gauges are often used with nutrunners and click-style torque wrenches in the automotive and aerospace industries. Store up to 999 maximum torque (peak) and rotation values, including the date and time of each test, or transfer to your computer to view in an Excel file. CE marked, they meet European safety standards.

For the most accurate readings, the maximum torque you're applying should fall near the middle of the gauge's torque range. They are not for use with impact tools.