ETC-902 Digital Temperature Controller Thermostat 12V 24V 110V 220V Refrigeration Cooling Defrost Relay

Take precise control over commercial refrigeration, cold storage, and heating equipment with the ETC-902 Digital Temperature Controller. Engineered for high-precision thermal management, this microcomputer-based thermoregulator supports broad input voltage options (DC 12V, DC 24V, AC 110V, and AC 220V) to suit diverse industrial and commercial systems. Specially designed for refrigeration, cooling, and automated defrosting applications, it features dual sensor inputs and independent control relays for compressor operation and defrost cycle timing. The bright digital LED display provides instant visibility of real-time temperatures and operating modes, while configurable temperature limits, calibration settings, and alarm delays ensure safe, reliable performance across walk-in freezers, display cabinets, and HVAC units.

Key Features

• Multi-Voltage Operational Flexibility: Available in DC 12V, DC 24V, AC 110V, and AC 220V models for seamless electrical integration.

• Dedicated Refrigeration & Defrost Control: Equipped with dual relay outputs to manage compressor cooling cycles and timed defrosting sequences.

• High-Precision NTC Probe Inputs: Supports dual temperature sensors for accurate ambient box temperature monitoring and evaporator defrost control.

• Clear Digital LED Screen: High-definition numerical display panel shows real-time temperature values, operating status, and parameter settings.

• System Safeguards & Alarms: Features configurable temperature calibration, high/low limit alarms, compressor start-delay protection, and sensor failure alerts.

Why Choose Our ETC-902 Thermoregulator

Basic analog dials and single-stage thermostats lack dedicated defrost cycle logic, causing ice buildup on evaporator coils and leading to compressor failure. Standard temperature switches offer poor calibration accuracy and lack probe diagnostic alerts, risking total cold-storage inventory loss. The ETC-902 combines multi-voltage adaptability, dedicated cooling/defrost dual-relay logic, high-precision NTC sensing, and comprehensive electrical safety delay features—giving your commercial freezers, cold rooms, and refrigeration systems an instant professional upgrade.

Perfect For

• Managing temperature and automated defrosting in commercial display freezers, cold storage rooms, and beverage coolers

• Controlling cooling and heating equipment in HVAC setups, industrial chillers, and agricultural storage

• Refrigeration technicians, HVAC engineers, commercial kitchen operators, and equipment repair specialists

• Gifting as a practical technician tool present, electrician accessory, or commercial repair essential

Specifications

• Model: ETC-902 Digital Temperature Controller

• Operating Voltage Options: DC 12V / DC 24V / AC 110V / AC 220V

• Temperature Control Scope: -50°C to +99°C (-58°F to +210°F)

• Control Functions: Refrigeration (Cooling), Heating, Timed Defrosting

• Sensor Type: NTC Thermistor Probes Included

• Ideal Uses: ETC-902 Thermostat Controller, Refrigeration Defrost Relay, Digital Microcomputer Thermoregulator