The AvidAqua MPO Duo is a compact, reef-safe dual probe holder that keeps your monitoring probes neat, secure, and correctly submerged. Perfect for pH, ORP, conductivity, temp probes, and more—without cluttering your sump or display.
Holds two probes with independent height adjustment
Magnetic mount for quick placement and repositioning (verify pane-thickness rating)
Snug, non-marring collars to keep probes vertical and stable
Open, flow-friendly design for fast response and accurate readings
Reef-safe materials—CNC acrylic and encapsulated, corrosion-resistant magnets
Clean the pane (remove film/salt creep).
Place the wet side inside the sump/display and align the dry side outside.
Insert probes into the holders; adjust depth so the tips sit fully submerged but off the bottom.
Tighten collars gently—snug, not crushing. Route cables through the built-in channels.
Tips
Mount in an area of steady, moderate flow away from bubbles/skimmer output.
Rinse salt creep from collars periodically to keep adjustments smooth.
Fits most standard aquarium probes (typical ~12–13 mm bodies).
Works on glass or acrylic; confirm magnet rating vs. your pane thickness.
Rinse with fresh water during routine maintenance.
Inspect magnet encasement; discontinue use if coating is compromised.
Avoid trapping sand/grit between the mount and pane.
Product: AvidAqua MPO Duo Probe Organizer
Capacity: Two probes with independent height control
Mounting: Magnetic (inner/outer halves)
Materials: Reef-safe acrylic; encapsulated magnets
Use Case: Organizing pH/ORP/temp/conductivity probes in sump or display
MPO Duo magnetic probe organizer (inner & outer halves)
Integrated dual probe collars
Quick-start guide