pH Electrode Probe BNC Connector – Lab, Aquarium & Hydroponics
Keep your water quality measurements accurate and reliable with this Professional Laboratory pH Electrode Probe. Designed as a direct replacement for a wide range of popular pH meters and controllers, this electrode delivers precise readings across aquariums, hydroponic systems, laboratories, spas, swimming pools, and other water systems.
Made in Mainland China.
Key Features
- Wide Compatibility: Fits pH-990, pH-217, pH-218, pH/EC-9853, pH-117, pH-118, pH-991, pH-3012, TDS/pH-9851, ORP/pH-999 and most pH meters with a BNC-Q9 connector.
- Sensitive Crystal Ball Bubble Probe: Composed of a pH glass electrode and reference electrode for stable, accurate readings.
- Full pH Range: Measures 0.00–14.00 pH with a resolution of 0.01 pH and accuracy of ±0.1 pH.
- Wide Temperature Range: Operates from 0°C to 50°C (32°F–122°F).
- Upright BNC (Q9) Connector: Easy plug-in connection, compatible with a broad range of controllers and meters.
- Generous Cable Length: ~1.1 m (43.3 in) cable for flexible placement.
- Durable & Lightweight: Plastic housing, approx. 65 × 25 mm, weighing only ~41.7 g.
- 100% Brand New: Ready-to-use replacement accessory right out of the box.
Specifications
| Type | Laboratory pH Electrode |
| Probe Type | Sensitive Crystal Ball Bubble |
| pH Range | 0.00 – 14.00 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.1 pH |
| Temperature Range | 0°C – 50°C (32°F – 122°F) |
| Connector Type | BNC Q9 (Upright) |
| Cable Length | ~1.1 m / 43.3 in |
| Item Size | ~65 × 25 mm (H × D) |
| Item Weight | ~41.7 g / 1.47 oz |
| Color | Black |
| Material | Plastic |
| Country of Origin | Mainland China |
Compatible Models
pH-990, pH-217, pH-218, pH/EC-9853, pH-117, pH-118, pH-991, pH-3012, TDS/pH-9851, ORP/pH-999
Compatible SKUs: E1595, E1597, E1598, E1274, E0919, E1135, E1147, E1149, E1150, E1273
Applications
- Aquariums & fish tanks
- Hydroponic & aquaponic systems
- Laboratories & research
- Spas & swimming pools
- Water treatment & monitoring
Package Contents
- 1 × pH Electrode Probe
Note: Due to different product batches, appearance may vary slightly but does not affect performance. Color may differ slightly from images due to lighting and display variations. Measurement allowance: ±1–3 cm.
For more information on water quality testing standards, visit the U.S. EPA Ground Water and Drinking Water resource.
Frequently Asked Questions
Q: What pH meters is this electrode probe compatible with?
A: This pH electrode probe is compatible with a wide range of popular meters including the pH-990, pH-217, pH-218, pH/EC-9853, pH-117, pH-118, pH-991, pH-3012, TDS/pH-9851, and ORP/pH-999. It also works with most pH meters and controllers that use a BNC Q9 connector.
Q: Can I use this pH electrode probe for hydroponics and aquariums?
A: Yes! This probe is specifically designed for use in aquariums, hydroponic systems, spas, swimming pools, water sources, and laboratory settings — anywhere you need precise, reliable pH measurement of an aqueous solution.
Q: What is the pH measurement range and accuracy of this electrode?
A: The electrode measures across the full pH range of 0.00 to 14.00 pH with a resolution of 0.01 pH and an accuracy of ±0.1 pH, making it suitable for both general use and more precise laboratory applications.
Q: How long is the cable on this pH electrode probe?
A: The cable is approximately 1.1 meters (43.3 inches) long, providing plenty of reach for flexible placement near tanks, pools, or lab setups.