Features: 

• Measuring units: grams, ounces, pennyweight and troy ounces
• Resolution: PR50: 0.01 gram, PR100: 0.05 gram, and PR500: 0.1 gram
• Easy to recalibrate to ensure accurate weighing
• Tare Feature lets you reset the scale back to zero. When using a container, scale can subtract the containers weight to obtain the weight of its contents feature (add & weigh)
• Automatic shut-off The scale will automatically turn off when it is not used for a set time feature ensures long battery life
• Very compact design; fits into the palm of your hand

Specifications:

• Capacity: 50, 100, or 500 gram
• Dimensions 4.25in x 2.75in x 0.75in (11cm x 7cm x 2cm)
• Two Lithium3 Volt Button Battery, CR2032 batteries, calibration weight and protective slipcover are included 

Manufacturer warranty: 5 years