HANNA HI 991404 GroChek® Combo Low Range pH EC TDS Temp Monitor

Manual

Please Note: This item cannot work with a digital ballast.

HANNA Instruments HI 991404 GroChek® Combo Low Range pH EC TDS Temp Monitor, HI991404 HI 991404-01 HI 991404-02 HI991404-01 HI991404-02

<<< HI 991404 is supplied with HI 1293D pH electrode, fixed HI 7630 probe, pH and EC calibration solutions, 12 Vdc power adapter and instructions. >>>

The Combo HI 991404 and HI 991405 series meters from HANNA instruments are designed for continuous, high accuracy pH, EC/TDS and temperature measurements. These microprocessor indicators continuously monitor the three most important nutrient parameters in hydroponics, greenhouses and horticultural applications with a single instrument. These indicators feature a large, dual-level, backlit LCD to give you instantaneous readings of pH, EC or TDS and temperature, even from a distance.

At startup, these indicators perform a self-check to assure proper working condition. HI 991404 and HI 991405 stability indicator and hold features prompt the user when to take the reading and freezes the display for easy and accurate recording.

Calibration and temperature compensation is automatic, while the EC/TDS conversion factor and temperature coefficient (ß) are user adjustable for application-specific measurements.

These instruments are supplied with an advanced, non-clogging double junction pH electrode and a rugged conductivity probe that will withstand even the most aggressive environments. The instruments are powered by a 12 Vdc transformer and are easy to install and use, making them ideal for all continuously monitoring applications.

Range pH 0.0 to 14.0 pH; Range EC 0 to 3999 µS/cm; Range TDS 0 to 2000 ppm (mg/L); Range Temperature 0.0 to 60.0°C (32 to 140°F); Resolution pH 0.1 pH; Resolution EC 1 µS/cm; Resolution TDS 1 ppm; Resolution Temperature 0.1°C (0.1°F); Accuracy pH ±0.1 pH; Accuracy EC/TDS ±2% F.S.; Accuracy Temperature ±0.5°C (±1°F); Temperature Compensation pH: automatic; EC/TDS: automatic with ß adjustable from 0.0 to 2.4%/°C; Calibration pH: automatic, 1 or 2 points with 2 sets of memorized buffers; EC/TDS: automatic, 1 point; pH Electrode HI 1293D (included), Cable 5-pole; 2 m (6.6'); EC/TDS Probe HI 7630 (fixed); EC/TDS Conversion Factor adjustable from 0.45 to 1.00; Environment 0 to 50°C (32 to 122°F); RH max 95% Input Impedance 1012 Ohm; Power Supply 12 Vdc power adapter (included); Dimensions 160 x 105 x 31 mm (6.3 x 4.1 x 1.2"); Weight 3 lbs