New packaging

Innovative Dual-Port System: The smart dual-port allows for two calibration methods—direct low-volume use from the detection port for convenient eld testing, and a traditional pouring port for lab use.
Contamination Prevention: A built-in pressure check valve ensures bu er purity by preventing liquid reux, safeguarding the solution's integrity.
Sleek, User-Friendly Design: Our bottles now boast a contemporary, ergonomic shape that is easier to handle and store.
Efficient Use & Portability: The design saves solution volume and supports precise quantitative transfer, making the bottles perfect for both on-site and laboratory calibrations.

Dual Functionality

Dual-port design lets end-users use the bu er in two ways:
1. Direct calibration with only 20 ml buffer in the detection port. You can carry the bottle everywhere when doing the on-site tests.
2. Lab calibration by pouring the buffer into a container from the pouring port. The valve blocks liquid back ow, ensuring that the bu er inside the bottle is free from contamination, and extending the service life.

Simple and efficient operation

• Direct Detection: Open the detection cap and make sure the cap on the other side is closed → Squeeze the bottle until the liquid level reaches the 20 mL scale, then insert the electrode → perform the calibration operation and close the detection cap for subsequent use
• Buffer Replacement: Pour out the used buffer, rinse the container with 5 mL of new buffer → Drain the rinse and refill with 20 mL of bu er for calibration