Always On. Being There Optional. Monitor your reservoir pH, Conductivity and Temperature with alerts on your phone when using the Wi-Fi capable Bluelab Guardian Monitor. Built-in Wi-Fi (with option to disable) High/low pH, temperature and conductivity alarms Non-volatile memory – keep settings through power loss Plant-safe green LEDs with adjustable display brightness 2 metre / 6.6 foot measurement probe cables 110 – 240 VAC (Mains powered) Interchangeable power plug Replaceable Bluelab pH Probe (with BNC connection) When connected to Edenic by Bluelab app: Instant alarm alerts to your phone Remote monitoring and control History reporting to assist data-driven decision making