Aqua Medic 230mV Redox (ORP) Test Fluid 60ml
Fits
Any ORP probe
Part no.
AM230230
Reference
230 mV
Bottle
60 mL
Use
Check or calibrate ORP probe
Aqua Medic 230mV Redox (ORP) Test Fluid 60ml
A redox probe only tells the truth if it's been checked against a known reference. Aqua Medic's 230mV Redox (ORP) Test Fluid is a 60 ml calibration standard used to check and, where the controller allows, recalibrate the accuracy of oxidation-reduction potential probes on marine and reef aquariums. It suits anyone running an ORP monitor or controller who wants confidence that the number on screen reflects the water, not probe drift.
Key features
- Fixed 230 mV reference value – a known, stable benchmark to check a probe's reading against.
- 60 ml bottle – enough fluid for several calibration checks over the life of the bottle.
- Works with any ORP/redox probe – not tied to a specific brand of controller or meter.
Specifications
| Volume | 60 ml |
|---|---|
| Reference value | 230 mV |
| Parameter | Redox / ORP (oxidation-reduction potential) |
Suitable for, and not suitable for
Suitable for checking and calibrating ORP/redox probes and controllers on any marine or reef system. Not suitable as a water additive – it is a calibration standard, not intended to be added to display tank water, and it doesn't calibrate pH or conductivity probes; those need their own reference fluids.
Care and maintenance
Recalibrate at the interval your probe manufacturer recommends. Use fresh fluid for each check rather than pouring used fluid back into the bottle, and keep the cap tightly closed between uses to protect the reference value.
Safety
For probe calibration only – not for consumption and not for addition to aquarium water. Avoid contact with eyes and skin; rinse with water if contact occurs, and keep out of reach of children.
Goes well with
Aqua Medic 250µS Test Fluid and Aqua Medic 50mS Test Fluid, for calibrating conductivity probes alongside redox.
Warranty and delivery
Covered by Aqua Medic's standard guarantee against manufacturing defects, in addition to your rights under Australian Consumer Law. Standard parcel delivery.
Common questions
What does a 230mV reference fluid actually do?
It gives the probe a known, fixed value to read. If the probe's display doesn't match 230mV closely, it needs recalibrating or has drifted.
How do I know when to recalibrate my ORP probe?
Follow your probe or controller manufacturer's recommended interval – check the reading against this fluid at that schedule, or sooner if readings seem inconsistent with what you'd expect.
Can I reuse the fluid after testing?
No – once fluid has been exposed to the probe it can pick up contamination, so use a fresh measure each time rather than returning it to the bottle.
Is this fluid safe to add to my display tank?
No. It's a calibration standard for use on the probe only, not a water treatment or additive.
