Innovative Marine Helio Aquarium Heater Review

Rated for Aquarium Size: 25 - 50 Gallons *Based on +10°F water temperature increase from current ambient temperature. Heating Element Dims: L 7" x D .80" | Remote Sensor Dimensions: L 2.3" x D .31" | Helio Smart Controller Dims: L 3.13" x W 1.31" x H 5". Helio PTC Smart Controller Specifications: Factory Preset Temperature: 77°F | Factory Preset Low Alarm: 74°F | Factory Preset High Alarm: 80°F | Accuracy: < ±1°F | Resolution: 0.1°F | Calibration Range: ±9°F. Temp Set Range: 59° - 95°F | Low Alarm General Range: 57° - 93°F | Low Alarm Minimum Range: -2°F from Set Temperature. High Alarm General Range: 60° - 96°F | High Alarm Minimum Range: +1°F from Set Temperature.