2m Probe Refrigerator Temp Controller

Dimensions: 77 x 34.5 x 58 mm. Weight: approx. 120 g (estimated from size and plastic housing). Input: 2 independent NTC sensor inputs. Probe types supported: NTC (−50°C to +120°C) and PTC (−50°C to +150°C). Temperature measurement range: NTC probe −50°C to +110°C (−58°F to +230°F); PTC probe −55°C to +140°C (−67°F to +284°F). Display resolution: switchable between 1°C and 0.1°C. Accuracy: ±0.5°C for NTC within −30°C to +50°C; ±1°C outside that range. PTC accuracy: ±1°C within −30°C to +50°C; ±2°C elsewhere. Power supply: 230 V AC ±10%, 50/60 Hz. Relay ratings: refrigeration, defrost and fan circuits each rated at 8 A / 220 V AC. Operating temperature: −5°C to +55°C. Storage temperature: −30°C to +85°C. Relative humidity: 10–90% RH (non-condensing). Sensor cable length: 2 m (includes probe). Housing material: black + red plastic. The 2-metre sensor cable is factory-terminated and shielded to minimise thermal lag and electrical noise — critical for stable control in electromagnetically noisy refrigeration environments. Both included probes are pre-calibrated and labelled for immediate use; the NTC probe suits standard fridge/freezer air or liquid sensing, while the PTC variant excels in higher-temp defrost or ambient monitoring roles. Front-panel LED indicators confirm relay status in real time — no multimeter needed to verify actuation. Designed for installers and technicians maintaining commercial refrigeration across UK food retail, hospitality and healthcare sectors — where traceable setup, fast fault diagnosis and long-term stability matter more than flashy UI. Also widely adopted by makers and educators building custom cooling rigs, thanks to its straightforward wiring diagram and tolerance for minor voltage fluctuations typical in workshop supplies.