HI9811-5 Portable pH/EC/TDS/Temperature Meter
The HI9811-5 is an economical, wateproof, portable meter that measures pH, conductivity (EC), total dissolved solids (TDS) and temperature (°C) with a single probe. The meter operation is simplified with dedicated buttons for measurement modes to be be displayed on the LCD and knobs for single point calibration of pH and EC/TDS. The HI9811-5 is most suitable for agricultural, greenhouse and hydroponic applications.
The HI9811-5 portable meter features a large LCD which displays either pH, EC, TDS or temperature readings along with tutorial instructions. The HI9811-5 is a simplistic pH/EC/TDS meter that is calibrated manually to a single point with the use of two trimmers. pH is calibrated to pH 7.01 while EC/TDS is calibrated to either 1.41 mS/cm (1413 µS/cm) or 1500 ppm. The LCD screen has battery life indicator as well as on-screen tutorial messages.
The supplied HI1285-5 probe is a polypropylene body, amplified pH electrode with a built-in EC/TDS and temperature sensors. The amplifier for the pH electrode prevents interference from humidity and electrical noise from common sources including from motors, ballasts or pumps. The HI9811-5 is a versatile meter best suited for agricultural, greenhouse and hydroponic applications.
Features at-a-glance
- Water Resistant
- Automatic Temperature Compensation
- All readings are compensated for variations in temperature
- Variable EC to TDS conversion factor
- Factor automatically adjusts from 0.56 to 0.78 based on actual EC readings
- Factor based on 442 curve for natural water
- Low Battery Indicator
| pH Range | 0 to 14 pH |
| pH Resolution | 0.1 pH |
| pH Accuracy | ±0.1 pH |
| pH Calibration | manual, one-point |
| EC Range | 0.00 to 6000 µS/cm |
| EC Resolution | 10 µS/cm |
| TDS Range | 0 to 3000 ppm (mg/L) |
| TDS Resolution | 10 ppm (mg/L) |
| EC/TDS Accuracy | ±2% F.S. |
| TDS Conversion Factor | 0.5 ppm (mg/L) = 1 µS/cm |
| Temperature Range | 0.0 to 70.0°C |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy (@ 25°C/77°F) | ±0.5°C |
| Temperature Compensation | automatic, 0 to 50°C |
| Temperature Coefficient | β = 2% /°C |
| Probe | HI1285-5 polypropylene body, pre-amplified multiparameter probe with internal temperature sensor, 8-pin DIN connector and 1m cable |
| Calibration | manual, one-point |
| Battery Type / Life | 9V / approximately 150 hours of continuous use |
| Environment | 0 to 50°C (32 to 122°F); RH max 100% |
| Dimensions | 145 x 80 x 36 mm (5.7 x 3.1 x 1.4”) |
| Weight | 230 g (8.1 oz.) |
References
| Name | Description | Quotation Request |
|---|---|---|
| HI-1285-5 | Quotation Request |
