On Balance CK-20 Milligram Scale
The CK-20 is designed for situations where milligram accuracy is required. With a resolution of 0.001 grams (1 milligram) and a maximum capacity of 20 grams, this scale is suitable for accurately weighing herbal extracts, supplements, gemstones, and other materials where grams are not sufficient. On Balance is a brand of Marsden, a British company with over 50 years of experience in professional weighing technology.
The built-in draft shield protects the sensor from air currents that can affect the result during milligram measurements. This makes the CK-20 more reliable than open models without a shield. The backlit LCD screen is white and offers good contrast, allowing you to clearly read the weight in any lighting condition.
Specifications
Specifications
- Capacity: 20 g
- Accuracy: 0.001 g (1 mg)
- Weight units: g, oz, ozt, dwt, ct, gn
- Display: backlit LCD (white)
- Auto-off: after 3 minutes of inactivity
- Calibration: one-touch, 2x 10 g weights included
- Power supply: 2x AAA batteries (included)
- Scale dimensions: 10.9 x 8.3 x 3.5 cm
- Platform size: 3.9 x 3.9 cm
- Weight (including batteries): 104.2 g
- Warranty: 3-year manufacturer’s warranty
Use and calibration
Calibrate the scale before first use and periodically thereafter for optimal accuracy. Place the two included 10 g calibration weights on the platform and follow the one-touch calibration procedure. The tare function allows you to subtract the weight of a bowl or container, so you only weigh the contents.
Place the scale on a flat, stable surface, free from vibrations and air currents. Use the draft shield during weighing to minimize measurement errors. The six available weight units (gram, ounce, troy ounce, pennyweight, carat, and grain) make the CK-20 suitable for a wide range of applications.
Included Accessories
The CK-20 comes with everything you need: a stainless steel weighing pan, tweezers for handling small quantities, two 10-gram calibration weights, and two AAA batteries. The scale is stored in the built-in cover, which also serves as protection during transport.
Frequently Asked Questions
What applications is the CK-20 suitable for?
The CK-20 is suitable for weighing herbal extracts, supplements, gemstones, jewelry, minerals, and other materials requiring milligram accuracy. The six weighing units also make the scale suitable for use by jewelers (carat) and precious metal dealers (troy ounce). View our full selection in the scales category.
How accurate is the CK-20 in practice?
The CK-20 measures to 0.001 grams (1 milligram). For reliable results, it is important to place the scale on a stable, flat surface and use the draft shield. Regular calibration with the included weights maintains accuracy.
What is the difference between the CK-20 and a standard pocket scale?
Most pocket scales have an accuracy of 0.01 grams (10 milligrams) or 0.1 grams. The CK-20 is ten times more accurate (0.001 gram) and features a draft shield that standard pocket scales do not have. The higher precision comes with a lower maximum capacity (20 grams versus 100–500 grams for standard models).
How long do the batteries last?
The two AAA batteries last for months with normal use, thanks in part to the programmable auto-off function that turns the scale off after 3 minutes of inactivity. Replacement batteries are available at any supermarket or in our headshop.
