The World’s Most

Advanced Line Of Testers

With these powerful waterproof testers, you can easily measure pH, EC/TDS, temperature,

and now ORP, anywhere. Attention to detail is evident in these advanced instruments with

features such as replaceable electrode technology and stainless steel temperature probes

for faster, more precise measurements. The EC/TDS meters have graphite probes for fast

response and contamination resistance.

At startup, each tester performs a self check then displays the remaining battery level assuring

proper working condition. A stability indicator tells you when to take the reading and a hold button

freezes the display for easy and accurate recording. All information is displayed on a redesigned

LCD that gives you the complete picture at a glance.

Features

Dual-level LCDs

Cloth, Renewable Junctions

Close Proximity Temperature Probes

Replaceable Electrodes

Battery Error Prevention Systems (BEPS)

Automatic Temperature Compensation (most models)

Automatic Calibration (most models)

Tactile Grip Casings

Waterproof and Floating

Automatic Shut-off

Efficient 2-button Operation

Temperature in ๐C or ๐F

Specifications

pH/ORP Combo Model HI 98121

Range :  pH -2.00 to 16.00, ORP +/-1000 mV, Temp. 0.0 to 60.0๐C/ 32.0 to 140.0๐F

Resolution: 0.01pH , 1 mV ORP, 0.1๐F/ ๐C

Accuracy (@ 20๐C/68๐F): +/-0.05 pH, +/- 2 mV ORP, +/-0.5๐C, +/-1๐F

Calibration: pH Automatic

Automatic Temperature Compensation

Battery Type: (4) 1.5 V

Battery Life (hours): 250

Auto-off after 8 minutes

Dimensions/Weight: 163 x 40 x 26mm (6.4 X 1.6 x 1”)/85 g (3.0 oz)