NTC/PTC Switchable Temp Regulator

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. Unlike fixed-probe thermostats, this regulator lets users select NTC or PTC mode via front-panel menu — adapting instantly to different sensor stocks or application needs (e.g., NTC for precision fridge control, PTC for high-temp defrost monitoring). The dual-input design also supports redundancy: if one probe fails, the second can be activated without hardware change. Calibration offset is adjustable per channel — correcting minor installation-induced errors like probe placement near heat sources. Widely trusted by refrigeration engineers performing warranty repairs, energy audits and system upgrades across UK supermarkets, pubs and care homes — where downtime must be minimised and parts compatibility maximised. Also popular among university engineering labs for teaching temperature feedback principles, thanks to its transparent parameter set and predictable response curve.