Multiparameter pH Meter edge® - HI2020-02

In stock
The versatile design of edge® enables it to be used as a portable, wall-mount or benchtop meter, edge simplifies measurement, configuration, calibration, diagnostics, logging and transferring data directly to a computer or USB drive.


edge® measures pH, conductivity and dissolved oxygen through its unique digital electrodes.These digital electrodes are auto-recognized, providing sensor type, calibration data and a serial number when connected to edge by an easy to plug-in 3.5mm connector. 





  • Simply connect each probe via the 3.5 mm jack, Digital Smart Electrodes are automatically recognized
  • Resolution selectable from 0.01 and 0.001 pH
  • Range -2.000 to 16.000 pH
  • Accuracy ±0.002 pH for 0.001 pH resolution; ±0.01 for 0.01 resolution
  • Data logging
    • Manual log-on-demand
    • Manual log-on-stability
    • Interval logging
  • Temperature readout (°C or °F)
  • Automatic Temperature Compensation (ATC)
  • CAL Check™ Indicators
    • Probe condition
    • Response time
    • Check buffer
    • Clean electrode
  • Sensor Check™ Indicators
    • Broken electrode
    • Clogged junction
  • GLP data
    • Records date, time, offset, slope and buffers used during calibration
  • Five-point calibration
    • A choice of seven pre-programmed buffers plus two selectable custom buffers
  • Calibration tag on screen
    • Identifies buffers used for current calibration
  • Calibration expiration warning


Portable field unit

edge® is ideal for field use due to its light weight, large screen, and thin design. It can easily be slipped into a backpack or messenger bag. The battery life lasts up to 8 hours when used as a portable device. 



Wall-mount cradle

The included wall-mount cradle makes it easy to conserve space on the benchtop while also charging edge with the AC adapter. The cradle is ideal for continuous monitoring applications. 

Electrode holder with built-in cradle

The electrode holder features a swivel adjustable arm with a built-in cradle to hold edge securely in place at the optimum viewing angle. 

Sleek design

Incredibly thin and lightweight, edge measures just 1/2” (12 mm) thick and weighs just 8.8 ounces (250 g).




-2.00 to 16.00 pH; -2.000 to 16.000 pH† 



0.01 pH; 0.001 pH† 


Accuracy (@25°C/77°F) 

±0.01 pH; ±0.002 pH† 



automatic, up to three points (five points†) calibration, 5 standard (7 standard†) buffers available (1.68†, 4.01 or 3.00, 6.86, 7.01, 9.18, 10.01, 12.45†) and two custom buffers† 


Temperature Compensation* 

automatic, -5.0 to 100.0°C (23.0 to 212.0°F) (using the built-in temperature sensor) 


Electrode Diagnostics 

standard mode: probe condition, response time and out of calibration range 

mV pH 


±1000 mV 



0.1 mV 


Accuracy (@25°C/77°F) 

±0.2 mV 



-20.0 to 120.0°C; -4.0 to 248.0°F 



0.1°C; 0.1°F 



±0.5°C; ±0.9°F 

Additional Specifications 

Probe (included in pH kit) 

HI11310 digital glass body pH electrode with 3.5 mm (1/8”) connector and 1 m (3.3’) cable 



up to 1000† (400 for basic mode) records organized in: manual log-on-demand (max.200 logs), manual log-on-stability (max.200 logs), interval logging† (max.600 samples; 100 lots) 



1 USB port for storage; 1 micro USB port for charging and PC connectivity 



0 to 50°C (32 to 122°F); RH max 95% non-condensing 


Power Supply 

5 VDC adapter (included) 


Dimensions / Weight 

202 x 140 x 12 mm (7.9” x 5.5” x 0.5”) / 250 g (8.82 oz.) 

Ordering Information 

HI2020-01 (USA plug) and HI2020-02 (European plug) pH kit includes: HI11310 glass body, refillable pH electrode, pH 4 buffer solution sachets (4), pH 7 buffer solution sachets (2), pH 10 buffer solution sachets (2), and electrode cleaning solution sachets (2), benchtop docking station with electrode holder, wall-mount cradle, USB cable, 5 VDC power adapter, quality certificates, and instruction manual. HI2020-03 includes the above without electrode. All edge compatible pH, EC and DO digital probes are interchangeable with HI2020 and can be ordered separately.