The STC‑100A is a digital temperature controller with a small LCD or 7‑segment display, single temperature sensor input (usually NTC), and a relay output for controlling cooling or heating loads. Typical specs include:
- Measurement/Control Range: approx ‑40 °C to +70/99 °C
- Supply Voltage: AC 110 V / 220 V (depending on model)
- Output: Relay control for compressor/heater (~10 A)
- Display: LCD or 7‑segment digital
- Sensor: 2 m NTC probe included