UP AQUA D-815 PH replacement Probe

Description

Features:

Resolution value (reading value): 0.1pH.
Error value (accurate): plus or minus 0.1pH.

Can be used directly, directly connected to the pH monitor! Super accurate!

Replacing the probe on your UP AQUA pH monitor in Singapore

We stock this UP AQUA D-815 probe as the spare most SG hobbyists eventually need, because pH electrodes are wear parts that drift and slow down over months of continuous immersion. Singapore’s soft, lightly acidic chloraminated tap water sits naturally on the lower side, so an accurate reading matters most for CO2-injected planted tanks and shrimp setups where a small pH swing changes everything. A tired probe gives lazy, lagging numbers long before it fails outright.

This is a plug-in replacement that connects straight to a compatible UP AQUA pH monitor, so there is no rewiring on your end. We always recommend calibrating a fresh probe before trusting it, and storing it wet, never dry, between uses to protect the sensing bulb. In our humid climate, keep the connector end away from condensation and splashes from open-top tanks to avoid corrosion creeping into the contacts over time.

Browse the rest of our water testing and water care range for matching gear, and read our notes on choosing a digital pH monitor and keeping a sensible water testing schedule so your readings stay honest.