Product Description
Hanna GroLine HI9814 Waterproof Portable pH EC TDS Meter - Professional Hydroponics Testing
The Hanna GroLine HI9814 is one of the best meters for hydroponics, trusted by commercial and home growers worldwide. This waterproof portable meter delivers fast, accurate measurements of pH, EC/TDS, and temperature with a specialized 3-in-1 pre-amplified probe—making nutrient management simple, reliable, and hassle-free.
Complete Testing Solution - Ready Out of the Box
The HI9814 arrives with everything you need for successful testing: meter, HI1285-7 multiparameter probe, Quick Cal calibration sachets, agriculture cleaning solution, and batteries. Whether you're a commercial operation or at-home grower, verify nutrient results on the spot and start optimizing for larger yields immediately.
Key Benefits
3-in-1 Measurement: Test pH, EC/TDS, and temperature simultaneously with one device
IP67 Waterproof: Fully waterproof casing withstands demanding grow environments
Pre-Amplified Probe: Reduces interference from pumps, motors, and grow lights
Quick Cal System: Fast single-point calibration for pH and EC using one solution
Portable Design: Handheld size for easy movement around grow rooms and greenhouses
Professional Accuracy: ±0.02 pH and ±2% F.S. EC accuracy
Long Battery Life: 600 hours continuous use on 3 AAA batteries
Technical Specifications
pH Measurement
Range: -2.00 to 16.00 pH
Resolution: 0.01 pH
Accuracy: ±0.02 pH @ 25°C
Calibration: Automatic 1 or 2-point (4.01, 7.01, 10.01 pH) or Quick Cal
EC/TDS Measurement
EC Range: 0.00 to 6.00 mS/cm
EC Resolution: 0.01 mS/cm
EC Accuracy: ±2% F.S. @ 25°C
TDS Range: 0-3000 ppm (0.5 CF) / 0-3990 ppm (0.7 CF)
TDS Resolution: 10 ppm (mg/L)
Conversion Factor: Selectable 0.5 (500 ppm) or 0.7 (700 ppm)
Calibration: Automatic 1-point at 1.41 or 5.00 mS/cm or Quick Cal
Temperature Measurement
Range: -5.0 to 105.0°C / 23.0 to 221.0°F
Resolution: 0.1°C / 0.1°F
Accuracy: ±0.5°C / ±1.0°F @ 25°C
Compensation: Automatic for pH and EC (β=1.9%/°C)
Professional Features
Large LCD Display: Easy-to-read screen shows all three measurements simultaneously
Simple Operation: Two-button design for intuitive use
Quick DIN Connector: Easy probe attachment and removal
Auto Shut-Off: User-selectable (8 min, 60 min, or disabled) to conserve battery
Low Battery Indicator: Blinking alert when battery drops below 10%
mV Mode: ±825 mV range with 1 mV resolution for ORP measurements
IP67 Waterproof Rating: Fully protected against dust and water immersion
HI1285-7 Pre-Amplified Multiparameter Probe
The included HI1285-7 probe combines a pH electrode, EC/TDS sensor, and temperature sensor in a durable polypropylene body. The built-in amplifier significantly reduces electrical interference from common grow room equipment—pumps, motors, and ballasts—ensuring stable, accurate readings in challenging environments.
Why Choose the GroLine HI9814?
Specially designed for hydroponic, aquaponic, and greenhouse nutrient solutions, the HI9814 is a customer favorite among growers who demand reliability and accuracy. The waterproof construction, portable design, and comprehensive testing capabilities make it ideal for both commercial operations and serious hobbyists. Durable, reliable, and built to withstand the demands of professional growing environments.
Complete Specifications Table
Specification
Detail
Model
HI9814
pH Range
-2.00 to 16.00 pH
pH Resolution
0.01 pH
pH Accuracy (@25°C)
±0.02 pH
pH Calibration
Automatic 1 or 2-point (4.01, 7.01, 10.01 pH) or Quick Cal
mV Range
±825 mV (pH-mV)
mV Resolution
1 mV
mV Accuracy
±1 mV
EC Range
0.00 to 6.00 mS/cm
EC Resolution
0.01 mS/cm
EC Accuracy (@25°C)
±2% F.S.
EC Calibration
Automatic 1-point (1.41 or 5.00 mS/cm) or Quick Cal
TDS Range
0-3000 ppm (0.5 CF) / 0-3990 ppm (0.7 CF)
TDS Resolution
10 ppm (mg/L)
TDS Accuracy (@25°C)
±2% F.S.
TDS Conversion Factor
Selectable 0.5 (500 ppm) or 0.7 (700 ppm)
Temperature Range
-5.0 to 105.0°C / 23.0 to 221.0°F
Temperature Resolution
0.1°C / 0.1°F
Temperature Accuracy (@25°C)
±0.5°C / ±1.0°F
Temperature Compensation
pH: Automatic; EC: Automatic (β=1.9%/°C)
Power Supply
3 x 1.5V AAA batteries (included)
Battery Life
Approx. 600 hours continuous use
Auto Shut-Off
User selectable: 8 min, 60 min, or disabled
Operating Environment
0 to 50°C (32 to 122°F); RH max 100%
Protection Rating
IP67 Waterproof
Dimensions
154 x 63 x 30 mm (6.1 x 2.5 x 1.2")
Weight
196 g (6.91 oz)
Warranty
2 years (meter); 6 months (probe)
What's Included
GroLine HI9814 portable pH/EC/TDS meter
HI1285-7 pH/EC/TDS multiparameter probe with built-in temperature sensor, DIN connector, and 1m (3.3') cable
HI50036 Quick Calibration Solution sachets (3)
HI700661 Agriculture Cleaning Solution sachets (3)
3 x 1.5V AAA alkaline batteries
Instrument Quality Certificate
Electrode Quality Certificate
Instruction manual
Video Tutorial
Manufacturer: Hanna Instruments (GroLine Series)
Country of Origin: Romania
UPC: 080000098146
SKU: HI9814
