HANNA GroLine Pre-amplified pH and EC probe - HI1285-51
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Simplify pH, EC, TDS, and Temperature Monitoring
The HI1285-51 Pre-Amplified Multiparameter Probe combines pH, EC, TDS, and temperature measurements in one durable, maintenance-free design. Specifically built for hydroponics, greenhouses, and water treatment systems, this all-in-one probe ensures reliable and accurate readings, making it perfect for continuous monitoring in challenging environments.
- Features & Benefits
- Product Specifications
- What is included?
- Warranty Policy
HANNA GroLine Pre-amplified pH and EC probe
Engineered for professional use, the HI1285-51 features an amplified pH electrode to reduce electrical interference, a rugged polypropylene body, and a maintenance-free gel-filled design.
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pH, EC, TDS, and temperature in a single probe. -
Reduces electrical noise from pumps and motors.
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Delivers accurate readings for nutrient solutions.
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Maintenance-free, no refilling required.
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Built to withstand aggressive environments.
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Reliable connection to compatible Hanna meters.
Reliable Testing Made Simple
The HI1285-51 helps growers, water treatment specialists, and environmental testers monitor key water parameters efficiently. Its maintenance-free design, stable readings, and rugged build make it ideal for everyday use in commercial and agricultural applications.
Why HANNA GroLine?
HANNA Instruments delivers precision, durability, and reliability trusted by professionals worldwide. Their rugged, waterproof meters provide accurate, consistent readings in any environment, from agriculture to environmental testing. With easy calibration, replaceable probes, and long battery life, HANNA offers long-term value and portability, ensuring dependable results and confidence in every measurement.
Why Buy From Us?
At GreenThumbDepot, you're not just another sale to a faceless corporation. You're partnering with a team genuinely invested in your success. Our legendary customer service, combined with a promise of unbeatable prices, sets us apart. We're here for you, always.
If I could rate 6 stars I would! My representative Edouard B. has been shockingly responsive! Like - oh my god - an actual SERVICE oriented company. He's dug into my odd connectivity issues I've been having - and following up in an AMAZINGLY timey manner. No shit. You'll be impressed! (And the price was also unbeatable, quick shipping...it's all PERFECT). Thank you Ed!!
Customer service was outstanding great people to deal with they understand your needs and they will do their best to fulfill them there is no way I can complain about them because they are the best help out there.Thanks green thumb depot. I'll definitely order from them again
The machine is doing just what my salesman told it would do (I appreciate you Ed thank you) . The machine is what we need for our new business we're starting up, soon to be llc and licensed. We are getting a lot of clients wanting our services. Ed I will be needing more of your products, thank you again.
Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need.
FAQ Section
Specifications 
| HANNA GroLine Pre-amplified pH and EC probe | |
|---|---|
| Product Name | HI1285-51 Pre-Amplified pH/EC/TDS/Temperature Probe |
| SKU | HI1285-51 |
| Parameters Measured | pH, EC, TDS, Temperature |
| Reference Type | Single, Ag/AgCl |
| Junction / Flow Rate | Cloth |
| Electrolyte | Gel (Maintenance-Free) |
| Maximum Pressure | 0.1 bar |
| Range | pH: 0 to 13 / Temperature: 0 to 50°C (32 to 122°F) - LT |
| Glass Type | Low Temperature (LT) |
| Tip / Shape | Spheric, 8.0 mm diameter |
| Temperature Sensor | Yes |
| Amplifier | Yes |
| Body Material | Polypropylene |
| Cable Length | 7-pole, 1 m (3.3 ft) |
| Recommended Use | Greenhouses, Hydroponics, Environmental Monitoring, Water Treatment, Boilers, Cooling Towers |
| Compatibility | HI9811-51, HI9812-51, HI9813-51 |
What is included?
It includes:
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HI1285-51 Pre-Amplified pH/EC/TDS/Temperature Probe
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Protective Probe Cap
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User Instruction Manual
Warranty Policy
Please check out the manufcaturers website for Warranty related issues.
