Dimensions150 x 80 x 36 mm (5.9 x 3.1 x 1.4’’)
Battery Type/Life1.5V (3) AAA / approximately 500 hours of continuous use
EC Accuracy±2% F.S.
Temperature Range0.0 to 60.0°C / 32.0 to 140.0°F
pH Resolution0.01 pH
pH Range0.00 to 14.00 pH
pH Accuracy±0.01 pH
Automatic Shut-Offafter 8 minutes of non-use
TDS Range0 to 2000 ppm (mg/L)
TDS Resolution1 ppm (mg/L)
Environment0 to 50°C (32 to 122°F); RH max 100%
Temperature Resolution0.1°C / 0.1°F
EC to TDS Conversion Factor0.45 to 1.00
EC Resolution1 µS/cm
Temperature Accuracy±0.5°C /±1°F
EC/TDS Temperature CompensationAutomatic with β adjustable from 0.0 to 2.4% / °C
EC Range0 to 3999 µS/cm
TDS Accuracy±2% F.S.
Details
The HI991300P portable meter features a large multi-level LCD which displays both pH, low-range EC or TDS and temperature readings simultaneously. The pH readings are displayed with a 0.01 resolution and an accuracy of +/-0.01 pH while the EC and TDS readings are displayed with a 0.01 mS/cm and 10 ppm (mg/L) resolution and 2% full-scale accuracy. The EC range of the HI991300P is from 0 to 3999 µS/cm and TDS is from 0 to 2000 ppm using the 0.45 conversion factor. The EC to TDS conversion factor is selectable 0.45 and 1.0. A built-in temperature sensor allows for automatic temperature compensated measurements of pH and . The HI991300P has many advanced features that are found in more expensive portable instrumentation including automatic calibration, buffer/standard recognition and temperature compensation. The LCD screen has indicators for calibration status and stability, as well as on-screen tutorial messages. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available. The supplied HI1288 is a 3-in-1 pre-amplified multiparameter probe that measures pH, EC/TDS, and temperature within a single polypropylene body. The amplifier for the pH electrode prevents interference from humidity and sources of electrical noise include circulating pumps, motors, and ballasts for grow lights. The design consideration for the HI991300P is ideal for measuring the pH, EC/TDS, and temperature in greenhouses, hydroponics, environmental monitoring, water treatment, wastewater treatment and boilers and cooling towers.
Simplified one button calibration - One or two point pH calibration is automatic to a pre-programmed buffer set (4.01/7.01/10.01 pH or 4.01/6.86/9.18) or single point pH and EC calibration with the Hanna Quick Cal calibration solution. To perform a quick cal calibration, simply press and hold the left power/mode button while in measurement mode for three seconds and let go to enter calibration mode. Once both pH and EC are calibrated "CAL OK" is displayed and the meter returns to measurement mode
HI1288 polypropylene body amplified pH electrode with built-in EC/TDS and temperature sensors - The HI991300P is supplied with an amplified polypropylene body pH/EC/TDS/temperature probe. The built-in amplifier will reduce the effects of electrical noise on the high impedance pH measurement. Examples of sources of electrical noise include circulating pumps, motors, and ballasts for grow lights.
pH Calibration - Automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18)
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GST No. 27AACCH2670Q1Z4
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Kharghar, Navi Mumbai, Maharashtra 
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