I don't have real-time access to current listings or sales, but I can certainly guide you on what to look for when searching for a Rockwell hardness tester for sale.

When considering purchasing a Rockwell hardness tester, keep the following factors in mind:

1. Type of Rockwell Hardness Tester: There are different types of Rockwell hardness testers, including Regular Rockwell, Superficial Rockwell, and Twin Rockwell. Determine which type suits your testing requirements.
   
2. Accuracy and Precision: Look for a model that offers the accuracy and precision you need for rockwell hardness tester for sale your specific applications. Different testers might have different levels of accuracy.
   
3. Load Scales: Rockwell hardness testers use different load scales (e.g., A, B, C scales). Ensure that the tester you're considering covers the load range required for the materials you'll be testing.
   
4. Test Blocks: Make sure the tester comes with certified test blocks to calibrate and verify its accuracy over time.
   
5. Display and Data Output: Check if the tester has a clear and easy-to-read display. Additionally, consider whether it offers data output options like USB, RS-232, or Bluetooth for easy data transfer.
   
6. Automation and Software: Some advanced models offer automation features and software integration for more efficient and streamlined testing processes.
   
7. Condition and Warranty: If you're considering buying a used tester, assess its condition carefully. If possible, inquire about any remaining warranty or the option to purchase an extended warranty.
   
8. Price Comparison: Research and compare prices from different sellers or suppliers. Keep in mind that quality and features can vary between different models and brands.
   
9. Seller Reputation: Whether you're buying from a manufacturer, distributor, or individual seller, research their reputation and reviews to ensure a reliable purchase.
   
10. Training and Support: Check if the seller offers training, user manuals, and technical support to ensure you can use the tester effectively.