Aqua Master Tools - P50 Replacement Electrode – High-Sensitivity Modular Glass Combo Probe

$64.95
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Estimated delivery: 5 - 15 Business Days.

+5 days for regional locations on average [More Info]

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SKU 4394
Barcode 8785258333705
Shipping Weight 0.05 kg
Description

Aqua Master Tools - P50 Replacement Electrode – High-Sensitivity Modular Glass Combo Probe

Restore original factory precision, protect your crucial nutrient monitoring schedules, and extend the working life of your handheld testing gear with the Aqua Master Tools P50 Replacement Electrode. Purpose-built as the direct mechanical and electrical swap-out cartridge for the rugged P50 Digital pH & Temp Meter, this professional-grade sensor probe is engineered to handle the tough conditions of commercial indoor vertical farms, industrial greenhouse facilities, and high-volume water filtration plants. Over months of constant contact with concentrated fertilizers, chemical acids, and hard water minerals, all digital meter probes naturally experience slow sensor drift, sluggish tracking, and general glass membrane degradation. Instead of forcing you to throw away an entire digital tool, the smart modular engineering of the Aqua Master Tools ecosystem allows you to simply replace the worn sensor cartridge. This high-sensitivity probe features a custom-engineered, fast-response glass bulb array paired with an integrated thermal sensor, feeding real-time fluid acidity and solution temperature telemetry back to your digital screen instantly. The plug-and-play assembly is built with a heavy-duty, threaded locking collar that creates a perfectly watertight seal, maintaining the meter’s certified IP67 dust-tight and submersible rating. Pre-calibrated to integrate flawlessly with the P50's built-in 2-point automatic calibration system, this replacement probe slips into place without requiring specialized tools or manual rewiring, making it cost-effective and simple to keep your water testing rounds perfectly accurate cycle after cycle.


Best For: Routine seasonal maintenance for Aqua Master Tools P50 meters, replacing worn or cracked glass probes, restoring slow meter response times, and maintaining essential backup inventory for commercial cultivation facilities.

Key Features & Technical Advancements

  • Dual-Function Integrated Sensor Array: Houses both the high-precision chemical pH glass bulb and a fast-response thermal sensor inside a single, streamlined cartridge body.
  • Watertight Threaded Mechanical Interface: Engineered with a heavy-duty rubber O-ring and an airtight locking sleeve that maintains your meter's floating IP67 waterproof rating.
  • Premium Non-Porous Shielding Shell: Encased in a rugged polymer protective housing that shields the fragile internal reference junctions from bumps against tank walls or hard equipment.
  • Immediate Plug-and-Play Assembly: Built with precision connection pins that slide smoothly into the main P50 meter handle, completely cutting out hardwiring or specialized tools.
  • Full 0.1 to 14.0 pH Measurement Competency: Restores full-spectrum tracking, allowing your meter to register precise, real-time chemical changes in liquid fertilizers and runoff water.
  • High-Stiffness Contact Terminals: Outfitted with corrosion-resistant internal terminals that ensure steady, noise-free signal transfer to the digital processor for clean, uncompromised telemetry.

Product Technical Specifications Matrix

System, Mechanical, & Sensor Parameters Engineering Metric / Design Detail
Brand & Infrastructure Line Aqua Master Tools / Field Testing Replacement Series
Component Product Identity P50 Replacement pH & Temperature Electrode Cartridge
Target System Compatibility Exclusively Fits Aqua Master Tools P50 Combo Handheld Pen Meter
Chemical Acidity Tracking Range 0.1 to 14.0 pH Full-Spectrum Target Analysis
Solution Thermal Tracking Range 0°C to 50°C Operational Fluid Envelope
Sensor Reading Accuracy Capacity Restores Factory Baseline (± 0.1 pH | ± 0.5°C System Tolerances)
Interface Fitting Connection Multi-Pin Direct Socket with Threaded Heavy-Duty Compression Collar
Moisture Ingress Protection Rating Maintains Full IP67 Waterproof and Buoyant Floating Competency
Primary Sensor Glass Matrix Low-Impedance Spherical pH Glass Membrane with Built-In Temp Node
Recommended Storage Environment Must Be Stored with 3M KCI Electrode Storage Solution in Protective Cap

Advanced Sensor Conditioning & Substrate Control Tips

  • Hydrating and Activating Your Fresh Electrode: Brand-new replacement probes are shipped dry or with a small moisture sponge to protect them during transit. Before using your new P50 electrode for the first time, you must activate the glass sensing membrane. Pour a small amount of specialized KCI Electrode Storage Solution into the protective cap, stand the meter upright, and let the tip soak for at least 2 to 4 hours. This conditions the glass bulb, ensuring fast response times and stable, accurate readings on your first test.
  • Root-Zone Hydration and Substrate Coordination: Keeping your testing equipment fresh ensures your liquid feeds match the specific substrate conditions your crops need to flourish. For optimal root health and fast nutrient uptake, combine your P50 measurements with a high-porosity 70/30 blend of Coco Coir and Horticultural Perlite. To maintain consistent moisture levels across large benches, route your nutrient solution through lines pressurized by a heavy-duty Plont PPH Submersible Pump managed by an automated digital shot-timer.
  • Executing a Full 2-Point Calibration Post-Installation: Every time you swap out a probe cartridge, you must re-align the meter's internal digital processor with the new sensor. Screw the fresh electrode tightly onto the P50 handle, then place the probe into clean pH 7.0 calibration reference fluid and run the automatic calibration sequence. Once the meter locks in the neutral point, rinse the tip with clean water and repeat the step in pH 4.0 reference fluid to secure your baseline accuracy across the board.
  • Safe Cleaning and Longevity Storage Protocols: Never touch the glass bulb at the bottom of the electrode with your bare fingers or paper towels, as skin oils and abrasive materials can easily scratch or ruin the delicate sensing surface. If fertilizer salts form on the tip, rinse it under warm tap water or soak it in a specialized cup of digital probe cleaner. Always store the electrode with a few drops of storage solution inside the cap, keeping the probe tip constantly moist to prevent premature sensor failure.

Ideal For (Uses)

  • Aqua Master Tools P50 Refurbishment: The ultimate direct repair option for commercial cultivation facilities and home growers who need to bring a slow or inaccurate P50 meter back to original factory-spec performance.
  • Hydroponic Reservoir Water Analysis: Perfect for indoor facility technicians running constant daily acid-base checks across liquid fertilizer tanks, reverse osmosis lines, and drain runoff arrays.
  • Commercial Facility Spare Parts Management: An exceptional backup component choice for commercial greenhouse operations and vertical farms looking to eliminate unexpected downtime by keeping extra replacement sensors on site.
Oversize Item Delivery

Oversized Item Delivery Options

Oversized, heavy, and structural goods ship via specialist freight. Freight is calculated at checkout from estimated packaged volumetric or physical weight. Carrier depot audits may adjust the rate — if the increase exceeds 10%, we will contact you before processing.

Available options include:

✔ Delivery to your closest depot for pickup — default method
✔ Direct delivery — requires an operational forklift on site unless Tailgate Delivery has been specifically requested and quoted (contact us — this cannot be selected at checkout)
✔ Tailgate hydraulic lift delivery — must be specifically requested; contact us for a quote (not available as a checkout option; extra fees apply; required if you do not have a forklift)
✔ Forklift loading at our warehouse (no extra charge if you arrange your own freight)
✔ Direct truck delivery (available in Victoria)

Important Notes:

  • Shipping costs vary by location and method
  • Any carton or consignment over 25–30kg (or over 200cm) must be palletised
  • Without a specifically requested and paid Tailgate Delivery quote, palletised freight requires a forklift on site — otherwise the carrier will redirect to the nearest depot
  • Bulky and oversized items cannot be delivered to a PO Box — provide a physical street address
  • Failed deliveries, locked gates, unattended sites, or incorrect business/forklift declarations may incur carrier redelivery, demurrage, and restocking fees as set out in our Terms & Conditions

Business Delivery:

  • Selecting a business/commercial delivery rate warrants that the address has an operational forklift and certified operator during business hours
  • If the carrier cannot unload, the consignment may be redirected to a depot and secondary fees may apply
  • Additional fees may apply for failed delivery attempts due to lack of appropriate unloading equipment

See our Terms & Conditions (Article 8) for full freight and delivery rules.

Shipping & Lead Times

Important Note on Availability & Shipping

Our warehouse is a logistics hub, not a retail showroom. Listing a product online does not mean it is stored at our Thomastown warehouse — many lines ship from supplier hubs (split fulfilment may apply).

How lead times work:

  • Product page ETA: The Estimated Time of Arrival (ETA) / lead-time badge shown on the product page at checkout is the agreed delivery timeframe for that order under Australian Consumer Law.
  • Metro baselines: Advertised ETAs apply to standard metropolitan zones. Regional and remote addresses may take longer and may attract surcharges.
  • Peak seasons: Orders in March–May, August–October, EOFY (June), Black Friday/Cyber Monday (November), and Christmas/New Year (December–January) may automatically add a 2–4 week buffer beyond the product page ETA.
  • Supplier-dependent / backordered items: If stock is delayed, we will notify you with a revised ETA. You then have 7 days to accept the new timeframe or cancel for a full refund.
  • Adloheat: Custom-made products from Adloheat (Pakenham, VIC) may take 4–12 weeks depending on the order.

Full fulfilment, cancellation, and freight rules are in our Terms & Conditions.

Biosecurity & Interstate Shipping Restrictions

Due to strict state biosecurity regulations, we are unable to ship some products to certain states and territories:

  • Potting Mixes cannot be shipped to Western Australia (WA), the Northern Territory (NT), or Tasmania (TAS).
  • Seeds cannot be shipped to Western Australia (WA).

Orders placed for these items to restricted states will be cancelled and refunded. It is the customer's responsibility to ensure that the items being ordered can lawfully be delivered to their state or territory.

Price Match Guarantee

We Offer the Best Prices

We are committed to offering competitive market rates. If you find an identical, currently stocked product advertised at a lower price by an authorised Australian competitor, contact us before purchase and we will review your request.

Price Match Conditions:

  • The competitor must be a registered Australian business (active ABN) with a physical trading address or verified commercial presence in Australia
  • The item must be identical in brand, model, SKU, gauge, dimensions, and specifications
  • The lower price must be publicly advertised in AUD, currently active, and available for immediate purchase
  • Excludes liquidation, clearance, closeouts, damaged goods, and discontinued lines
  • Excludes overseas marketplaces and aggregators including Temu, AliExpress, eBay auction sellers, and Amazon third-party sellers
  • Excludes trade quotes, bulk discounts, and custom negotiated quotes not publicly visible
  • Requests must be made in writing before purchase

How to Request a Price Match:

Email [email protected] with a live link or official quote. We reserve sole discretion to verify and approve price match adjustments. See Article 6.7 of our Terms & Conditions.

Pricing Errors & 105% Store Credit

If a displayed price is incorrect due to a website error or an extraordinary supplier increase, we will contact you before processing. You may proceed at the corrected price, choose an alternative, or cancel for a full cash refund. A 105% store credit may be offered as a courtesy bonus at our sole discretion only. It is not an entitlement, and we may refuse it if we believe it is being abused or sought in bad faith. Full details: Terms & Conditions Article 6.1.

Still Unsure?

Book an appointment with one of our team members. We are here to assist you every step of the way.