AC Infinity Digital Waterproof pH & Temperature Pen Kit
AC Infinity Digital Waterproof pH & Temperature Pen Kit
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Ensuring your nutrient solution stays within the ideal pH range (5.5–6.5 for hydroponics and coco, 6.0–7.0 for soil) is crucial for preventing nutrient lockout and boosting yield quality. The AC Infinity AC-PHM3 is a high-accuracy, digital pH and temperature meter built to deliver fast, repeatable water quality readings across indoor gardens, hydroponic reservoirs, and aquariums.
Equipped with a highly sensitive lithium glass membrane probe, the AC-PHM3 measures acidity, alkalinity, and liquid temperature instantaneously with a fine ±0.1 pH accuracy. Built to withstand tough grow room conditions, the pen features an IP67 waterproof and dustproof enclosure, an integrated protective sensor shield, and comes complete with ready-to-use 4.00 pH and 7.00 pH calibration solutions to keep readings precise over time.
What Makes It Stand Out
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High-Sensitivity Lithium Glass Probe: Rapid-response glass membrane delivers real-time pH and liquid temperature readings with ±0.1 pH precision.
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IP67 Waterproof & Dustproof Rating: Fully sealed housing protects internal electronics against accidental drops into reservoirs, splash hazards, and humid environments.
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Included Lab-Grade Calibration Set: Ships with 4.00 pH and 7.00 pH buffer solutions for immediate multi-point calibration out of the box.
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Protective Sensor Shield: Features a rugged outer guard around the glass bulb to prevent mechanical damage when testing dense reservoirs or stirring solutions.
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Versatile Water Testing: Ideal for hydroponic reservoirs, run-off testing, aquariums, fish tanks, home-brewing, pool maintenance, and general water treatment.
Technical Specifications
| Specification | Value / Detail |
| Brand / Manufacturer | AC Infinity Inc. |
| Model Name / Number | Digital pH Meter Kit (AC-PHM3) |
| Primary Sensors | pH Level & Liquid Temperature |
| Probe Technology | Sensitive Lithium Glass Membrane |
| Measurement Accuracy | ±0.1 pH |
| Ingress Protection Rating | IP67 Waterproof & Dustproof |
| Included Solutions | 1x 4.00 pH Buffer, 1x 7.00 pH Buffer |
| Dimensions (L x W x H) | 4.2 cm × 3.0 cm × 17.8 cm (1.65" × 1.18" × 7.01") |
| UPC Barcode | 819137024205 |
Real-World Applications
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Hydroponic & Coco Reservoir Monitoring: Ensures precise pH balancing before feeding to prevent nutrient lockout and root shock.
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Run-off Testing: Measures drainage liquid pH to detect salt build-up or root zone acidity shifts in potted crops.
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Aquariums & General Water Treatment: Maintains stable water parameters for sensitive aquatic life, home-brewing, or pool maintenance.
Frequently Asked Questions
We offer a 30-day return policy on all unused items in their original packaging. Simply contact our customer service team to initiate a return.
Standard shipping typically takes 5-7 business days. Express shipping options are available at checkout for faster delivery.
Yes, we ship to most countries worldwide. International shipping rates and delivery times vary by location.