The Indigo80 handheld indicator is tested for compatibility with HPP270 probes that have firmware version 1.4.0 or newer. Probes with older firmware versions may have limited compatibility with the indicator.
| CAUTION Do not use HPP270 probes that have a firmware version older than 1.4.0 with the Indigo80 handheld indicator in hydrogen peroxide environments. HPP270 probes with a firmware version older than 1.4.0 may be powered off during hydrogen peroxide exposure, resulting in sensor damage. |