![](https://www.ysi.com/image%20library/promotions/prodigital_trade-in-banner--003-.jpg)
Trade in any handheld water quality system (meter, probe, or cable) to receive a discount on a brand new YSI Pro Series system (meter, probe, or cable)!* It’s time to replace your system with a more advanced ProDSS, ProSolo, or ProSwap portable sampling system.
*Limited to U.S. only.
How It Works
- Contact us. Fill out the form on this page indicating your interest in the program and your local sales representative will contact you.
- Send in your old equipment. Whether you have an old YSI system or a system from another brand, you can receive a discount on a new ProDSS, ProSolo, or ProSwap system. We’ll even recycle the old equipment for you!
- Save on your new system. Choose the system you want, from our multiparameter ProDSS to our leading optical dissolved oxygen meter, the ProSolo.
![](https://www.ysi.com/image%20library/promotions/banner_trade-in--002-.jpg)
Options and Discounts
Choose the system that’s right for you:
ProSolo - optical dissolved oxygen system with optional conductivity (save $200)
ProSwap – single, interchangeable sensor system (save $300)
ProDSS – customizable, multiparameter system (save $500)
![](https://www.ysi.com/image%20library/promotions/banner_benefits--002-.jpg)