• Ampero metric probe technology

• Automatic Temperature Compensation

• Automatic Single calibration with calibration indicator

• On-screen tutorial messages for calibration an set-up

• HOLD

• BEPS

• Battery % displayed on startup.

• Compact, heavy-duty and waterproof

HI 99300 and HI 99301 are portable, EC/TDS/ temperature meters. HI 99300 measures low range conductivity in TDS in ppm while the HI 99301 measures high range conductivity in ms/cm and TDS in ppt. Both instruments are housed in a case rated for IP67 conditions