Product Line
Low Profile Precision Scales
SMD Sensors' low profile precision scales offer capacities from 0.1 to 1000 lbs with ±0.05% accuracy including non-linearity, non-repeatability, and percentage-per-year drift. Options include splash resistance, RF immunity, overload protection, and custom materials.
Featured Model
Model W130
Medical Diagnostic Scale — 8 kg
The W130 is an 8 kg low profile scale designed for medical instrumentation. Built on SMD's proprietary thin-film load cell technology with a full Wheatstone bridge and custom calibration electronics, it delivers ±0.05% accuracy over time. The low profile design integrates cleanly into diagnostic equipment, analyzers, and lab instruments.
Capacity
8 kg (17.6 lb)
Accuracy
±0.05%
Dimensions
8.95 × 6.69 × 1.89"
Markets
Medical · Diagnostic · Lab
Industries Served
Where our scales are used
Medical Devices
Reagent monitoring, IV fluid, waste management
Diagnostic Instruments
Analyzers, hematology, immunoassay systems
Semiconductor
Gas cylinder weighing, chemical dispensing
Laboratory
Sample prep, gravimetric measurement
Food & Dispensing
Ingredient dosing, portion control systems
Fluid Measurement
Flow rate via weight, drip monitoring
Life Science
Bioreactor media prep, buffer preparation
Industrial OEM
Automation, force/displacement measurement
Choosing the Right Scale
Which scale is right for your application?
Capacity and form factor drive most scale selection decisions. Use these starting points — or contact our engineering team for a custom design consultation.
If you need
Small reagent or waste monitoring
Start with
W100
450 g capacity, compact footprint, ±0.05% accuracy, overload protected.
If you need
Reagent bottle or large container weighing
Start with
W110 / W120
2.8–3 kg capacity, splash resistant, RF immunity option for diagnostic environments.
If you need
Medical analyzer integration, 8–9 kg
Start with
W130 / W140
Low profile design fits medical instrumentation; W140 adds analyzing system support.
If you need
Hanging IV bag or fluid monitoring
Start with
W300
Hanging scale in 600 g to 3 kg variants for IV fluid measurement.
Scale Models
| Model | Name | Capacity | Dimensions (L × W × H) | Hysteresis | Non-Repeatability | Key Features | ||
|---|---|---|---|---|---|---|---|---|
 | W100 | Medical Reagent Scale | 0.45 kg [0.99 lb] | 4.50 × 3.50 × 1.20" [114.3 × 88.9 × 30.5 mm] | ±0.05% R.O. | ±0.05% R.O. | Overload protected, reagent & waste monitoring, RoHs available | View Product |
 | W110 | Low Profile Bottle Scale | 2.8 kg [6.17 lb] | 11.42 × 5.85 × 1.43" [290.0 × 148.6 × 36.6 mm] | ±0.75 g | ±0.75 g | RoHs available, custom platforms, long-term stability 0.1%/yr | View Product |
 | W120 | High Accuracy Reagent Scale | 3 kg [6.61 lb] | 5.22 × 4.08 × 1.75" [132.5 × 103.6 × 44.4 mm] | ±1.50 g | ±0.75 g | Overload protection, RoHs available, custom platforms | View Product |
| W130 | Medical Diagnostic Scale | 8 kg [17.63 lb] | 8.95 × 6.69 × 1.89" [227.3 × 169.9 × 48.0 mm] | < 0.01% R.O. | < 0.05% R.O. | RF immunity, RoHs available, custom platforms | View Product |
 | W140 | Medical Diagnostic Reagent Scale | 9 kg [19.84 lb] | 9.0 × 6.69 × 3.59" [228.6 × 169.9 × 91.2 mm] | ±5 g | ±5 g | Center balanced, RoHs available, medical analyzing systems | View Product |
 | W300 | Hanging Scale | 600 g / 1 kg / 2 kg / 3 kg | 3.75 × 1.34 × 5.80" [35.3 × 34.0 × 147.3 mm] | ±1% of span | ±1% of span | Low profile, low power, long-term stability, IV bag monitoring | View Product |
| Custom | Custom Scales | Application-specific | Any configuration | Per design | Per design | Any material, color, capacity — e.g. 0.75" stainless for semiconductor gas cylinders | View Product |