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DRX-4 - Complete selection of pharmacy scales and balances


Designed and certified specifically for prescription weighing and compounding, the DRX-4 is an ideal pharmacy scale. The balance is built with rugged die-cast metal housing and an electromagnetic force restoration weighing load cell which provides superior accuracy and stability at all times. The DRX-4 has a capacity of 120g and a weighing accuracy of 1mg (0.001g).

Functions and Features

Standard Features

  • Large LCD Display
  • Easy-to-use leveling system
  • RS-232 Interface
  • Sealed front panel
  • Capacity indicator
  • Stability and Net indicators
  • Draft Ring
  • Auto zero (AZSM)
  • Center of Zero indicator


The DRX-4 is an ideal class II pharmacy scale. It was designed specifically for pharmacy use and it has been NTEP certified as legal for trade in prescription weighing. The DRX-4 is very robust, affordable and most important very accurate. It has a 120 gram capacity, with a resolution of .001 grams (1 milligram), it has a tare capacity equal to its range, and provides a display of scale capacity used (in percent) whenever weighing. The need for a draft shield is eliminated by the unique design of the pan shield. The die-cast metal base uses a tripod support system, with two adjustable legs and one fixed leg, which, when combined with a bubble level indicator, provides the user with an easy to level scale. The dustproof, spill-proof keyboard with easy to read standard symbols makes for a simple user interface and eliminates the need for special training.



Model DRX-4
Capacity (Max) 120g
Minimum Load (Min) 0.02g
Reading Unit (d) 0.001g
Verification Unit (e) 0.01g
Tare Range -120g
Accuracy Class II
Temperature +15C to +30C
Weighing Time <3s
Pan Dimension 116 mm
Scale Dimensions 235 x 245 x 80 mm
Power Input 120VDC 60Hz 9.5W
Power Output 12VDC 500mA
Scale 8.2 / 3.7
Calibrating Weight 100g

Product Gallery

Services & Support

NTEP Certifications


All models are NTEP - certified as prescription scales with approved pill counting features, and meet handbook 44 requirements for a "Class A" prescription balance.

View All Certifications

General Services Administration


All TORBAL DRX pharmacy scales are available for purchase by Federal Government institutions under GSA contract terms and conditions.

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Toll Free: 1 866-473-6900
Outside of US: (973)473-6900
Fax: (973)777-8302
Scientific Industries
80 Orville Dr.
Bohemia, NY 11716

Hours of Operation:
M-F 9:00 AM - 5:00 PM EST