Hanna HI 981404N - pH/TDS Indicator

Hanna HI 981404N - pH/TDS Indicator

This item is not available to order.

Feel free to browse our items available to order.

Item Details

pH & TDS Continuous Indicator
  • Two parameters with a single instrument
  • Advanced electrode technology
  • Simple operation and maintenance
  • Supplied complete and ready to use

HI 981404N is ideal for agricultural, horticultural and hydroponics applications where pH and TDS 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. TDS measurements are performed using the 4-4-2 conversion factor of 0.7 so you do not need to convert the readings.

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

The HI 981404N is compact and easy to install and use making it ideal for all continuous monitoring applications.


RangepH0.0 to 14.0 pH
TDS0 to 1990 mg/L (ppm)
ResolutionpH0.1 pH
TDS10 mg/L (ppm)
Accuracy @ 20CpH0.2 pH
TDS2% F.S.
CalibrationpHmanual at one or two points
TDSmanual at one point
automatic from 5 to 50C (41 to 122F) (TDS only)
TDS Conversion Factor0.7 ppm = 1 S/cm
ProbesHI 1286 interchangeable pH electrode (included), HI 7634 TDS probe (fixed), HI 1283 grounding bar with 2 m (6.6') cable (included)
Power Supply12 VDC adapter (included)
Environment0 to 50C (32 to 122F), RH 95%
Dimensions165 x 110 x 35 mm (6.5 x 4.3 x 1.3")
Weight300 g (10.6 oz.)

Item Specifications
Item Number: 131898
Manufacturer: Hanna Instruments
Manufacturer's Part Number: HI 981404N

Additional Documents
pdf file Instruction Manual

Image Gallery

Related Items

Home | Products | Learning Center | About Us | Returns & Refunds | Shipping | Privacy | Testimonials | Contact | Login | View Cart |

Copyright 1992-2016 Greentrees Hydroponics