Features: Main precise temperature control with this 30amp Cooling & Heating Controller featuring double mode operate and large LED display, ideal for HVAC device requiring high current capacity and real time monitoring. Engineered with industrial grade ABS housing and ±0.5°C accuracy sensors, its oversized screen delivers fast visibility of temperature settings and mood conditions for error easy adjustments. Designed for refrigeration technicians, food logistics operators, and commercial HVAC maintenance teams managing cold storage units or temperature sensitive transport vehicles. Optimizes climate stability in walk in freezers, refrigerated trucks, beverage dispensers, and laboratory equipment while preventing spoilage of perishables during extended operations. simplify equipment management through natural button controls and auto switching between cooling/heating modes, backed by IP54 rate durability for demanding industrial environments. Specifications: Component : ABS Size: about 77x35x63mm/3x1.4x2.5inch Power supply: 115/230VAC +10% 50/60Hz. Package Includes: 1x Temperature Controller note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.