The Ageon A103 is a digital temperature controller from the Black Line designed for heating or cooling applications. It uses two NTC temperature sensors and provides two relay outputs with dedicated ratings for cooling (17 A/250 Vac), defrost (10 A/250 Vac) and ventilation (5 A/250 Vac). The measurement range is −50 to +100 °C with 0.1 °C resolution. It operates on 110 or 220 Vac (2 VA) and offers six operating modes, including two‑stage control, dual controller, timer, cooling with electric or hot‑gas defrost, and a milk‑cooling configuration. The front panel is IP65 and the NTC sensor is IP68. Remote monitoring is supported via WebFi and WebFi Pro. Mounting can be done with screws or clips.