Waterproof Portable pH/pH-mV/ORP/Temperature Meter with Sensor Check™ - HI991003P

The HI991003P meter features a large multi level LCD screen which displays both pH/pH-mV/ORP and temperature readings simultaneously with 0.01 pH resolution and an accuracy of ±0.05 pH. The LCD screen also has indicators for calibration status and stability, as well as on-screen tutorial messages. The HI991003P has many advanced features that are found in more expensive portable instrumentation including Sensor Check, automatic calibration, buffer recognition,and temperature compensation. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.

HI1297D probe for HI991003p

HI1297D pH Electrode

The HI991003P is supplied with the pre-amplified titanium body pH/ORP/temperature electrode. The titanium body is resistant to many aggressive chemicals including those used in plating and chemical manufacturing. The titanium body acts as a matching pin that, together with the built-in amplifier, will help reduce the effects of electrical noise on the high impedance pH measurement. Examples of sources of electrical noise include rectifiers, motors and ballasts.

The HI1297D pH electrode also features an extractable cloth junction. The extractable cloth junction of the HI1297D allows for the renewing of the junction. Simply extract ⅛” of the junction by pulling on the junction will expose a new portion. Any clogging that was present will be cleared and the response time will be back to normal extending the life of the pH electrode.

Titanium body that is resistant to harsh chemicals
Pre-amplified and matching pin for resistance to electrical noise
Extractable cloth junction to clear any clogging
Built-in temperature sensor for automatic temperature compensated readings

Features at-a-glance

Waterproof

Designed to float if accidentally dropped in a tank

Sensor Check^TM

Allows users to check the electrode status at any time

Expanded pH and ORP Range

pH range is from -2.00 to 16.00 pH
ORP range is ±1999 mV

Automatic Two-Point Calibration

One or two-point calibration is automatic to two selectable buffer sets (4.01, 7.01 and 10.01 or NIST 4.01, 6.86, and 9.18).

Automatic Temperature Compensation

All readings are compensated for variations in temperature
Temperature displayed in ^°C or ^°F along with pH reading

Stability Indicator

Meter displays a clock tag that will disappear when the reading has achieved stability

HOLD button

Freezes reading on the display to allow recording of measurement

BEPS (Battery Error Prevention System)

Meter will automatically shut off if there is not enough power to get an accurate measurement

Battery % level at startup

Low Battery Indicator

When the level is below 5%, the battery symbol on the LCD blinks to indicate a low battery condition.

Auto-Off

Meter automatically shuts off after 8 minutes of non-use to maximize battery life

SKU	HI991003P
Name	Waterproof Portable pH/pH-mV/ORP/Temperature Meter with Sensor Check™ – HI991003P
pH Range	-2.00 to 16.00 pH
pH Resolution	0.01 pH
pH Accuracy	±0.02 pH
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)
mV Range	±1999 mV
mV Resolution	±1
mV Accuracy	±2 mV
Temperature Range	-5.0 to 105.0°C / 23.0 to 221.0°F
Temperature Resolution	0.1°C / 0.1°F
Temperature Accuracy	±0.5°C (up to 60°C); ±1.0°C (outside) / ±1°F (up to 140°F); ±2.0°F (outside)
Temperature Compensation	automatic from -5.0 to 105.0ºC (23 to 221ºF)
pH/ORP Electrode	HI1297D pre-amplified pH/ORP probe with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included)
Battery Type/Life	1.5V (3) AAA / approximately 1200 hours of continuous use; auto-off after 8 minutes of non-use
Environment	0 to 50°C (32 to 122°F); RH max 100%
Dimensions	152 x 58 x 30 mm (6.0 x 2.3 x 1.2”)
Weight	205 g (7.2 oz.)

HI991003p is supplied with HI1297D pH/ORP probe with internal temperature sensor, HI70004 pH 4.01 buffer sachet (20 mL), HI70007 pH 7.01 buffer sachet (20 mL), HI700661 electrode cleaning solution sachet (2 x 20 mL), batteries, instructions, and rugged carrying case.

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