Product Description
FEATURES AT-A-GLANCE
- 3 sensors combined in a single rugged probe body: pH electrode with renewable cloth junction, amperometric EC/TDS sensor, and an internal temperature sensor for temperature compensated readings
- IP65 rated enclosure: designed to withstand harsh grow environments
- Wide pH Range: measure pH from 0.00 to 14.00 pH
- Selectable EC to TDS/ppm conversion factor: choice of either a 0.5 or 0.7 conversion factor
- Automatic Temperature Compensation: all readings are compensated for variations in temperature, temperature displayed in oC or oF along with pH, EC or TDS reading
- Large LCD with plant-friendly green backlighting: LCD can display all three essential hydroponic nutrient measurements at one time, a 3-second cycle of single measurements, or a real-time graph screen with options for measurement selection and log recall
- Data logging for 30 days: logs every 15 minutes for last 30 days, stores min, max, and average values
- Data transfer: USB-C port for easy data transfer to memory stick or PC
- High and low alarms: warns when your nutrient solution is out of desired range by flashing display and message
- Ambient light sensor: While HI981420 has the correct PAR values to be safe in photo sensitive gardens, auto dimming was added to the monitor as an added safety precaution.
PH SPECIFICATIONS
|
pH Range |
0.00 to 14.00 pH |
|
pH Resolution |
0.01 pH, (0.1 pH) |
|
pH Accuracy |
±0.05 pH, (± 0.1 pH) |
|
pH Calibration |
one or two-point calibration (using pH 4.01,7.01, 10.01 buffers) using auto buffer recognition; one-point calibration using quick calibration solution |
|
Temperature Compensation |
automatic (0.0 to 60.0ºC/ 32.0 to 140.0° |
CONDUCTIVITY (EC/TDS) SPECIFICATIONS
|
EC Range |
0.00 to 10.00 mS/cm |
|
EC Resolution |
0.01 mS/cm |
|
EC Accuracy |
±0.1mS/cm (0.00 to 5.00mS/cm); ±0.2mS/cm (5.00 to 10.00mS/cm) |
|
EC Calibration |
one-point at 1.41 mS/cm or 5.00 mS/cm using auto standard recognition; one-point calibration using quick calibration solution |
|
EC/TDS Temperature Compensation |
automatic with β set at 1.9%/°C |
|
TDS Range |
0 to 5000 ppm (TDS conversion factor 0.5 (500 CF)); 0 to 7000 ppm (TDS conversion factor 0.7 (700 CF)) |
|
TDS Resolution |
10 ppm |
|
TDS Accuracy |
±2% f.s. |
TEMPERATURE SPECIFICATIONS
|
Temperature Range |
0.0 to 60.0°C / 32.0 to 140.0°F |
|
Temperature Resolution |
0.1°C / 0.1°F |
|
Temperature Accuracy |
±0.5°C /±1°F |
SPECIFICATIONS
|
Display |
128 x 64 pixel B/W LCD with green backlight |
|
Connectivity |
USB Type-C |
|
IP Rating |
IP65 |
|
Alarms |
High and Low with enable/disable option for all parameters |
|
Log Feature |
Automatic logging for last 30 days at 15 minute interval |
|
GLP |
Good Laboratory Practice with last 5 pH and EC calibration history |
|
Probe |
HI1285-8 pH/EC/TDS/temperature polypropylene body, pre-amplified multiparameter probe with internal temperature sensor DIN connector and 2 m (6.6’) cable |
|
Power Supply |
12VDC adapter (included) |
|
Environment |
-5 to 50°C (23 to 122°F); RH max 95% non-condensing |
|
Dimensions |
125 x 185 x 38 mm (4.92 x 7.28 x 1.49”) |
|
Weight |
333g ( 11.7oz.) |
|
Ordering Information |
HI981420 is supplied with: HI1285-8 multiparameter probe, HI50036-0 Quick Cal buffer solution sachet (2), HI700661P Electrode cleaning solution sachets for agriculture (2), 12VDC adapter, instruction manual, Monitor Quality Certificate, & Probe Quality Certificate. |
|
Warranty 2 Years |
