Neptune Apex Temperature Probe Neptune Apex Temperature Probe is a replacement or expansion temperature probe for compatible Neptune Apex aquarium controller systems, PM2 modules, PM3 modules, and additional monitored aquariums. Temperature Monitoring for Apex Systems This high-quality Neptune temperature probe allows an Apex system to monitor aquarium temperature for alerts, graphs, heater control, fan control, chiller control, and temperature-compensated readings on compatible modules. It is useful as a replacement probe, an added probe for another aquarium, or a temperature-compensation probe for PM2 and PM3 module applications. Neptune Temperature Probe Features Replacement or expansion temperature probe for Neptune Apex systems Designed to work with Neptune Apex aquarium controllers Useful for heater, fan, chiller, and temperature alert programming Can be added to another tank or system through compatible Apex hardware Can be used with PM2 or PM3 modules for temperature-compensated readings Encapsulated thermistor design Professional-style probe intended for long-term aquarium monitoring Temperature Probe Specifications Product type: Apex temperature probe Temperature precision: 0.1°F Cable length: 6 ft Sensor type: Encapsulated 2.5 mm thermistor Compatibility: Neptune Apex aquarium controller systems and compatible modules Common applications: Aquarium temperature monitoring, heater control, fan control, chiller control, alerts, and PM2/PM3 temperature compensation Compatibility and Use Notes Use this probe with compatible Neptune Apex controller systems and modules. Temperature readings are most useful when the probe is placed in a stable, representative area with steady water movement and away from heater outlets, chiller returns, stagnant corners, and direct light or heat sources. Setup Directions Connect the probe to the compatible Apex temperature port or module, place the probe in a stable high-flow area, and confirm readings in Apex Fusion. Use temperature alerts and heater or cooling control logic only after confirming the probe is reading correctly and positioned properly. What's Included One Neptune Apex Temperature Probe