Name: GroLine Monitor - HI981421
SKU: HI981421
Price: 511.50 EUR
Availability: InStock

GroLine Monitor is designed to offer you the combination of pH, conductivity (or total dissolved solids) with temperature measurements. All operations and settings, including calibration buffers and temperature scale selection, are included in a easy to use Monitor setup.

The supplied HI1285‑8 (with HI981420) or HI1285‑9 (with HI981421) multiparameter probe measures pH, EC/TDS and temperature in one convenient, rugged probe. A solid‑state preamplifier is integrated into the probe to protect the pH measurement from transient electrical noise. Sources of electrical noise include ballasts used in lighting and pumps to circulate water and nutrient solutions. If pH reading in pH 7.01 buffer is around 4.01, the probe is broken.

Measurements are automatically logged in the GroLine Monitor internal memory every 15 minutes and can be viewed using the plot/record log feature or exported to a Flashdrive, or by connecting to a PC. The three main operating modes of this Monitor are measurement, setup and logging.

Other features include:

• can be integrated into a fertilizer system

• pH/EC/TDS probe with built‑in temperature sensor

• as afailsafe feature, if the pH bulb breaks, the pH will be around 4.01

• multiple viewing options for on‑screen data

• quick calibration using Quick cal solution for pH and EC simultaneously

• pH and EC calibration timeout reminder (1‑30 days)

• visual plot screens for real‑time data and log history

• 24 hours summary screens (plot and details)

• alarms feature for all parameters

• automatic continuous logs, 15 minutes intervals, 30 days storage

• logged data can be stored and later exported to a USB C drive or transferred to a PC using USB C connection

• GLP feature calibration data for pH and EC (up to 5 calibrations)

• dedicated help with contextual message

• setup, calibration and operating parameters are stored in nonvolatile memory (important to note that if power is lost all settings are retained)

• probe inline mounting for fast measurement feedback (HI1285‑9 only)

• ambient light sensor for ON/OFF backlight

pH specifications

Range	0.00 to 14.00 pH, 0.0 to 14.0 pH*
Resolution	0.01 pH, 0.1 pH
Accuracy (25ºC/77 ºF)	±0.05 pH, ±0.1 pH
Calibration	one or two‑point calibration (using pH 4.01, 7.01, 10.01 buffers) using auto buffer recognitionone‑point calibration using quick calibration solution
Temperature compensation	automatic: 0.0 to 60.0 °C; 32.0 to 140.0 °F

EC specifications

Range	0.00 to 10.00 mS/cm
Resolution	0.01 mS/cm
Accuracy (25ºC/77 ºF)	±0.10 mS/cm (0.00 to 5.00 mS/cm) ±0.20 mS/cm (5.00 to 10.00 mS/cm)
Calibration	one‑point at 1.41 mS/cm or 5.00 mS/cm using auto standard recognition.one‑point calibration using quick calibration solution
Temperature compensation (not user selectable)	automatic, with b = 1.9%/°C

TDS specifications

Range	0 to 5000 ppm (0.5 TDS Factor) 0 to 7000 ppm (0.7 TDS Factor)
Resolution	10 ppm
Accuracy (25ºC/77 ºF)	±2% FS
Calibration	through EC calibration
TDS factor	0.5 (500 ppm) or 0.7 (700 ppm)

Note: pH range will be reduced to actual probe specification**
Note: 1000 μS/cm = 500 ppm with 0.5 TDS Factor = 700 ppm with 0.7 TDS Factor

Temperature specifications

Range	0.0 to 60.0 °C / 32.0 to 140.0 °F
Resolution	0.1 °C / 0.1 °F
Accuracy (25ºC/77 ºF)	±0.5 °C /±1.0 °F

Additional specifications

Automatic logging	Measurements (pH, EC, TDS, temperature) Min/Max/average/status logged continuously at 15 minutes interva
	Recall graphic modes
	Export on USB‑C flash drive or PC
	Log files in CSV format
	30 days stored data at 15 minutes interval
Display	128 x 64 pixel B/W LCD with green backlight
Display	Automatic backlight dimming using ambient light sensor
GLP	Good Laboratory Practice with last 5 pH and EC calibration history
Monitor protection rating	IP65 (dust and low pressure water jets
Alarms	High and Low with enable/disable option for all parameters
USB‑C (Host/Device)	Export logged data on USB flash drive / PC
Power supply	12VDC adapter (included)
Environment	0 to 50 °C (32 to 122 °F), RH max 95% non‑condensing
Monitor dimensions	125 x 185 x 38 mm (4.92 x 7.28 x 1.49”)
Monitor weight	333 g (11.7 oz.)
Ordering information	HI981420 is supplied with: HI1285‑8 multiparameter probe, HI50036 Quick cal buffer solution (2 sachets), HI700661 pH electrode cleaning solution for agriculture (2 sachets), DC power adapter (1) and instruction manual. HI981420‑01 withUS plug, HI981420‑02 with EU plugHI981421 is supplied with: HI1285‑9 inline multiparameter probe, HI50036 Quick cal buffer solution (2 sachets), HI700661pH electrode cleaning solution for agriculture (2 sachets), DC power adapter (1) and instruction manual. HI981421‑01 withUS plug, HI981421‑02 with EU plug
Warranty	GroLine Monitor is warranted for a period of 2 years