The Apera EC20 already includes calibration solutions — but only as a small 50 ml starter quantity. That’s enough for two calibrations, after which you’ll need refills. This set therefore additionally contains the 250 ml storage bottles: five times the amount per solution.
Included in the Set
- Apera EC20
- Apera EC calibration solution 1413 µS (250 ml)
- Apera EC calibration solution 12.88 mS (250 ml)
Why order together
If you reorder the solutions individually later, you’ll pay shipping a second time. In the set, they travel with the device. Plus there’s the set price: the storage bottles are 15% cheaper here than individually, while the device price remains unchanged. You save €4.14 compared to buying separately.
Good to Know
If you use your device daily, calibrate about once a month, or at least before important measurement series. A 250 ml bottle is sufficient for about ten calibrations, depending on the vessel size.
