Precision Balances
Precision Balance 440-21A – Reliability Meets Accuracy
The 440-21A is a compact, robust, and versatile precision balance, ideal for laboratories, education, production, and quality control. With high accuracy, intuitive operation, and proven quality, it’s the perfect entry-level model for professional weighing technology.
Product Highlights:
✅ Maximum capacity: 200 g
✅ Readability: 1 mg (0.001 g)
✅ Calibration: External (calibration weight available as an option)
✅ Weighing plate: Ø 80 mm, stainless steel
✅ Stabilization time: approx. 3 seconds
✅ Clear LCD display with 15 mm digit height
✅ Switchable weighing units: g, oz, ct, gn, dwt, etc.
✅ RS-232 interface – for data transfer to PC/printer
✅ Convenient operation with 5 function keys
✅ Mains operation (adapter included)
Typical Applications:
🔹 Educational and training laboratories
🔹 General laboratory use
🔹 Incoming and outgoing goods inspection
🔹 Production and manufacturing
🔹 Formulation and piece counting tasks
Precision Balance 440-21A – Technical Specifications
| Property | Value | 
|---|---|
| Weighing system | Strain gauge | 
| Weighing range [Max] | 60 g | 
| Readability [d] | 0.001 g | 
| Repeatability | 0.001 g | 
| Linearity | ± 0.003 g | 
| Resolution | 60,000 | 
| Calibration | External (e.g. with 50 g F2 weight) | 
| Stabilization time | 3 s | 
| Warm-up time | 120 min | 
| Eccentric load (1/3 Max) | 0.003 g | 
| USP minimum sample weight (k=2, U=0.1%) | 2 g | 
| Maximum drift (15 / 30 minutes) | 10 mg / 20 mg | 
| Preset unit | g | 
| Weighing units | g, ct, gn, dwt, ozt, oz, tl, mo, tol | 
| Property | Value | 
|---|---|
| Display | LCD with backlight | 
| Digit height | 15 mm | 
| Weighing pan (Ø) | 81 mm | 
| Housing material | Plastic | 
| Draft shield (Ø×H inner / outer) | 90×40 mm / 106×42 mm | 
| Housing dimensions (W×D×H) | 165×230×123 mm | 
| Percentage determination / Recipe mode | ✓ / Rez A (Net total) | 
| Counting function (resolution) | ✓ (30,000) | 
| Min. part weight (lab / normal conditions) | 2 mg / 20 mg | 
| RS-232 interface | Standard | 
| Power adapter (included) | 100–240 V, 50/60 Hz, 9 V output | 
| Battery operation | 9 V block, approx. 20 h | 
| Rechargeable battery operation (optional) | NiMH, approx. 20 h / charging time approx. 10 h | 
📞 Interested in this precision balance or looking for a suitable alternative with a different weighing range?
Contact us – we’ll be happy to advise you and provide a customized quote!


