CAS
CAS SW-20RS SW-RS - 20 lb capacity, NTEP
CAS SW-20RS SW-RS - 20 lb capacity, NTEP
Compatible with:
SW-20RS
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Product Description
CAS SW-20RS POS Interface Scale – 20 lb x 0.01 lb, NTEP Legal for Trade, RS-232
SKU / MPN: SW-20RS
The CAS SW-20RS is a compact NTEP-approved POS interface scale designed to communicate with compatible POS systems and electronic cash registers. It provides a 20 lb capacity with 0.01 lb readability and an RS-232 serial interface for supported integrations.
Availability: CAS products are available to order from Spartan POS. Shopify inventory quantity is not used as the availability source for this CAS item.
Quick Answer
Choose the SW-20RS when you need a legal-for-trade CAS scale with a 20 lb capacity and serial POS/ECR connectivity. It is commonly used in restaurants, cafeterias, farmers markets, ice cream and candy shops, and other retail environments where weighed items are sold through a compatible POS system.
Key Specifications
| Manufacturer | CAS |
| Model / SKU | SW-20RS |
| Capacity / Readability | 20 lb x 0.01 lb |
| Other Units | 400 oz x 0.2 oz; 10 kg x 0.005 kg; 10,000 g x 5 g |
| Interface | RS-232, 9-pin DB female |
| Display | 5-digit, 1-inch LCD with customer rear display |
| Platter | Stainless steel, approximately 9.05 in W x 7.48 in D |
| Power | AC adapter included or 6 x 1.5V batteries |
| Legal for Trade | NTEP COC #99-002 |
| Approx. Dimensions | 10.23 in W x 11.29 in D x 5.39 in H |
| Approx. Product Weight | 6.92 lb |
Best For
- Retail POS systems that support the CAS SW-RS serial scale protocol
- Restaurants, cafeterias, delis, candy and ice cream shops
- Farmers markets and specialty retail
- Applications requiring an NTEP legal-for-trade scale
POS Connectivity
The SW-20RS communicates with supported POS systems and ECRs through its RS-232 serial interface. The manufacturer lists lb, kg and oz for POS/ECR communication. A compatible serial cable and correct POS software configuration may be required.
What's Included
- CAS SW-20RS scale
- Customer rear display integrated into the scale
- AC adapter
Not assumed included: RS-232 interface cable, large platter, protective cover, POS software, or configuration services unless specifically stated with your order. CAS lists the serial cable, large platter and protective cover as optional accessories.
Compatibility
Do not order solely by capacity. Confirm that your POS software supports the CAS SW-RS / SW-20RS protocol, the required serial connection, and your legal-for-trade requirements. Spartan POS can help verify compatibility before ordering.
Common Buying Mistakes
- Assuming every POS application supports the SW-RS serial protocol.
- Ordering without confirming whether an RS-232 cable is required for the installation.
- Confusing the 20 lb SW-20RS with the 10 lb SW-10RS.
- Using Shopify's displayed inventory count as CAS availability; CAS availability is handled separately from a live Shopify inventory feed.
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Frequently Asked Questions
Is the CAS SW-20RS legal for trade?
Yes. The SW-RS series specification lists the SW-20RS as NTEP approved under COC #99-002.
What is the capacity of the SW-20RS?
20 lb with 0.01 lb readability.
How does it connect to a POS system?
Through an RS-232 9-pin serial interface. Confirm that your POS software supports the CAS SW-RS protocol before ordering.
Is a serial cable included?
CAS lists the serial cable as an optional accessory, so do not assume it is included unless your order specifically states that it is.
Can Spartan POS confirm compatibility?
Yes. Provide your POS software name, terminal/register model, and current scale/interface details and Spartan POS can help confirm the correct configuration.
