Description
Product Code: K1760
The HI981420 GroLine Monitor for Hydroponic Nutrients provides around-the-clock, continuous monitoring of pH, conductivity (EC & TDS), and temperature in hydroponic nutrient solutions.
Quick to setup, simple to use, this monitor was designed with Hydroponics, Aquaponics, and Greenhouses in mind. Make your nutrient solution easy to manage with the GroLine Monitor.
Grow better with GroLine.
Get 24/7 pH&EC measurements for consistent yields every time.
Good Laboratory Practice (GLP) feature for professional accuracy.
Calibrate pH and EC with a single Quick Cal solution.
One quick glance is all it takes.
A large clear LCD displays all of your essential readings so you know what your hydroponic nutrients solution is doing 24/7. High and low alarms flash warning you if something needs adjusting.
Monitor changes over time.
The GroLine Monitor automatically logs your results every 15 minutes over the last 30 days. Minimum, maximum, and average values are stored so you can recognize when patterns arise and help prevent future problems.
One probe. Three measurements.
Our 3-in-1 pre-amplified probe measures pH, EC/TDS, and temperature in a single, durable, polypropylene body making the GroLine Monitor easy to handle and easy to set up.
Quick Cal for less maintenance.
A single calibration solution for pH and conductivity makes calibration fast and ensures all of your measurements are accurate all of the time for better plant health and better yield.
pH Range0.00 to 14.00 pH; 0.0 to 14.0 pH
pH Resolution0.01 pH; 0.1 pH
pH Accuracy±0.05 pH; ± 0.1 pH
pH Calibrationone or two-point calibration (using pH 4.01,7.01, 10.01 buffers) using auto buffer recognition; one-point calibration using quick calibration solution
pH Temperature Compensationautomatic (0.0 to 60.0ºC/ 32.0 to 140.0°)
EC Range0.00 to 10.00 mS/cm
EC Resolution0.01 mS/cm
EC Accuracy±0.1mS/cm (0.00 to 5.00mS/cm); ±0.2mS/cm (5.00 to 10.00mS/cm)
EC Calibrationone-point at 1.41 mS/cm or 5.00 mS/cm using auto standard recognition; one-point calibration using quick calibration solution
TDS Range0 to 5000 ppm (TDS conversion factor 0.5 (500 CF)); 0 to 7000 ppm (TDS conversion factor 0.7 (700 CF))
TDS Resolution10 ppm
TDS Accuracy±2% f.s.
EC/TDS Temperature Compensationautomatic
Temperature Correction Coefficientβ set at 1.9%/°C
EC to TDS Conversion FactorTDS conversion factor 0.5 (500 CF); TDS conversion factor 0.7 (700 CF)
Temperature Range0.0 to 60.0°C / 32.0 to 140.0°F
Temperature Resolution0.1°C / 0.1°F
Temperature Accuracy±0.5°C /±1°F
Alarm Relay Set Pointhigh and low with enable/disable option for all parameters
Multi-parameter ProbeHI1285-8 pH/EC/TDS/temperature polypropylene body, pre-amplified multiparameter probe with internal temperature sensor DIN connector and 2 m (6.6′) cable
Logging Typeautomatic logging for last 30 days at 15 minute interval
ConnectivityUSB Type-C for flash drive or compatible device
GLPlast 5 pH and EC calibrations
Display128 x 64 pixel B/W LCD with green backlight
Power Supply12VDC adapter (included)
Environment-5 to 50°C (23 to 122°F); RH max 95% non-condensing
IP RatingIP65
Dimensions125 x 185 x 38 mm (4.92 x 7.28 x 1.49″)
Weight333g ( 11.7oz.)
Ordering InformationHI981420 is supplied with: HI1285-8 multi-parameter probe, HI50036-0 Quick Cal buffer solution sachet (2), HI700661P electrode cleaning solution sachets for agriculture (2), 12VDC adapter, calibration certificates for both meter and probe, and instruction manual.