Hanna GroLine Monitor for pH, EC/TDS & Temperature – HI981420
| Brand | |
|---|---|
| Model | HI-981420-02 |
| Probe | HI1285-8 combined pH/EC/temperature probe |
| Cable / connector | 2 m; DIN |
| Measurements | pH; EC or derived TDS; temperature |
| Records | Last 30 days at 15-minute intervals |
| Connection | USB Type-C |
| Alarms | Configurable high and low limits |
| Power | 12 V DC adaptor |
| Protection | IP65 |
GroLine nutrient-solution monitor with HI1285-8 pH/EC/temperature probe and 2 m cable. Derived TDS, local alarms and 30-day records at 15-minute intervals.
Supplier orders: Hanna Instruments currently estimates around two weeks for direct supplier delivery; timing is subject to supplier confirmation.
£442.17 (inc VAT)
Hanna HI981420 GroLine pH, EC/TDS and Temperature Monitor
A nutrient-solution monitor for growers
The HI981420 GroLine monitors pH, conductivity or calculated TDS, and temperature in hydroponic nutrient solutions. It uses the HI1285-8 combined probe with a 2 m cable and a local display, rather than individual test reagents for each reading.
Its application is nutrient-solution monitoring. A TDS value is calculated from conductivity using the selected conversion setting; it does not identify individual nutrients or directly measure nitrate, ammonia or oxygen.
| Specification | Details |
|---|---|
| Probe | HI1285-8 combined pH/EC/temperature probe |
| Cable / connector | 2 m; DIN |
| Readings | pH; EC or derived TDS; temperature |
| Records | Last 30 days at 15-minute intervals |
| Connection | USB Type-C |
| Alarms | Configurable high and low limits |
| Power | 12 V DC adaptor |
| Housing | IP65 |
Continuous display and stored records
The monitor provides ongoing readings while its logging interval is 15 minutes. That interval describes the stored record, not an instruction to assume the display only measures once every quarter-hour.
Keep the selected EC/TDS conversion factor and units with the record so comparisons remain meaningful. High and low alarms show when a reading crosses the configured limit; this monitor does not dose nutrients or pH-adjustment chemicals by itself.
Calibration and supplied equipment
The manufacturer package includes the combined probe, GroLine Quick Cal solution sachets, agricultural electrode-cleaner sachets, adaptor and instructions. Use the recognised Quick Cal or individual calibration routine and the specified storage procedure for the pH element.
For a separate pH controller with a dosing pump, compare the HI981412-00 GroLine dosing system. The HI981520 Marine Monitor is intended for seawater salinity monitoring, with a different probe arrangement and application.
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