HI 981405N-01

pH & EC Continuous Indicator
HI 981405N-01 is ideal for agricultural, horticultural and hydroponics applications where pH and EC levels need to be continuously monitored for optimal plant growth. This instrument continuously monitors and displays the values of a solution on an easy to read set of LCD’s.

The HI 1286 gel filled pH electrode is replaceable and the BNC connector is protected behind a waterproof sleeve. The unique design of the electrode guarantees greater clogging resistance in fertilizer solutions with high concentrations of phosphate, nitrate, etc.

This model is equipped with a grounding bar to ensure highly accurate pH readings and longer electrode life.

The HI 981405N-01 is compact and easy to install and use making it ideal for all continuous monitoring applications.

Specifications
Range pH 0.0 to 14.0 pH
EC 0.00 to 9.99 mS/cm
Resolution pH 0.1 pH
EC 0.01 mS/cm
Accuracy @ 20°C pH ±0.2 pH
EC ±2% F.S.
Calibration pH manual at one or two points
EC manual at one point
Temperature
Compensation  automatic from 5 to 50°C (41 to 122°F) (EC only)
Probes  HI 1286 interchangeable pH electrode (included), HI 7632 EC probe (fixed), HI 1283 grounding bar with 2 m (6.6’) cable (included)
Power Supply  12 VDC adapter (included)
Environment  0 to 50°C (32 to 122°F), RH 95%
Dimensions  165 x 110 x 35 mm (6.5 x 4.3 x 1.3”)
Weight  300 g (10.6 oz.)

Accessories
Electrodes
HI 1286  Spare pH Electrode for pH Indicators
Solutions
HI 70000P  Rinsing Solution 25 x 20 mL sachets
HI 70004P  4.01 pH Buffer Solution, (25) 20 mL
HI 70007P  7.01 pH Buffer Solution
(25) 20 mL sachets
HI 70442P  1500 mg/L (ppm) TDS Solution, (25) 20 mL Sachets
HI 70039P  5000 µS/cm EC Solution (25) 20 mL Sachets
HI 70300M  Electrode Storage Solution
1 x 230 mL bottle
HI 7061M  General Purpose Cleaning Solution
1 x 230 mL bottle
Accessories
HI 710005  Power Adapter, 115 Vac to 12 VDC, US Plug
HI 710006  Power Adapter, 230 Vac to 12 VDC, European Plug