• Waterproof pH/mV Meters
HI991001-0

Waterproof pH/mV Meters

with Extended Range


HI 99100 and HI 991002 meters from HANNA instruments® offer IP 67 waterproof protection in a compact casing.

The included electrode has a built-in temperature sensor and amplifier, to render your measurements impervious to noise and electrical interference.
The large display shows readings in an extended range from -2.00 to 16.00 pH and simultaneously shows temperature from -5.0 to 105.0 °C or 23 to 221°F. HI 991002 also measures ORP in the ±1999 mV range.
These meters have a stability indicator and hold feature that prompts you when to take the reading & freezes the display for easy and accurate recording. The large display also has graphic symbols to guide you through all operations.
The battery life of the meters guarantee over 1500 hours of continuous use. At startup, they perform a self-check and then display the percentage of the remaining battery level to assure proper working condition. Calibration is performed automatically at 1 or 2 points using standard or NIST buffers.

 

HI 991001 is supplied complete with HI 1296D pH electrode with internal temperature sensor, pH 4 and pH 7 buffer sachets, HI 700661 electrode cleaning solution (2 x 20 mL), batteries, rugged carrying case and instructions.
HI 991002 is supplied complete with HI 1296D pH electrode with internal temperature sensor, pH 4 and pH 7 buffer sachets, HI 700661 electrode cleaning solution (2 x 20 mL), batteries, rugged carrying case and instructions.

  HI 991001 HI 991002
Range pH -2.00 to 16.00 pH -2.00 to 16.00
mV ±1999 mV
Temperature -5.0 to 105.0°C / 23.0 to 221.0°F -5.0 to 105.0°C / 23.0 to 221.0°F
Resolution pH 0.01 pH 0.01 pH
mV 1 mV
Temperature 0.1°C / 0.1°F 0.1°C / 0.1°F
Accuracy (@20°C) pH ±0.02 pH ±0.02 pH
mV ±2 mV
Temperature ±0.5°C (up to 60°C); ±1.0°C (outside)
/ ±1°F (up to 140°F); ±2.0°F (outside)
±0.5 (jusqu’à 60°C); ±1°C (extérieur)
±1°F (jusqu’à 140°F); ±2°F (extérieur)
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)
Temperature Compensation
automatic from -5.0 to 80.0ºC (23 to 176ºF)
Electrode/Probe
HI1296D pre-amplified pH probe with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included)
Battery Type
3 x 1.5V AA
Battery Life
approximately 1200 hours of continuous useapproximately 1200 hours of continuous use
Auto-off auto-off after 8 minutes of non-use
Environment 0 to 50°C (32 to 122°F); RH max 100%
Dimensions / Weight 152 x 58 x 30 mm (6.0 x 2.3 x 1.2”) /  205 g (7.2 oz.)