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  • CH402 SKG One Channel Relay Switch Control High Temperature Electric Oven Thermostat Thermocouple Pid Controller
  • CH402 SKG One Channel Relay Switch Control High Temperature Electric Oven Thermostat Thermocouple Pid Controller
  • CH402 SKG One Channel Relay Switch Control High Temperature Electric Oven Thermostat Thermocouple Pid Controller
  • CH402 SKG One Channel Relay Switch Control High Temperature Electric Oven Thermostat Thermocouple Pid Controller
  • CH402 SKG One Channel Relay Switch Control High Temperature Electric Oven Thermostat Thermocouple Pid Controller
  • CH402 SKG One Channel Relay Switch Control High Temperature Electric Oven Thermostat Thermocouple Pid Controller
CH402 SKG One Channel Relay Switch Control High Temperature Electric Oven Thermostat Thermocouple Pid Controller
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CH402 SKG One Channel Relay Switch Control High Temperature Electric Oven Thermostat Thermocouple Pid Controller

  • 1 - 9 Pieces
    $20
  • 10 - 199 Pieces
    $18
  • 200 - 499 Pieces
    $15
  • >= 500 Pieces
    $14.50

Customization:

Customized packaging（Min.Order: 200 pieces）
Customized logo（Min.Order: 200 pieces）
Graphic customization（Min.Order: 200 pieces）
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CH402 SKG One Channel Relay Switch Control High Temperature Electric Oven Thermostat Thermocouple Pid Controller

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Precise Temperature Control: Equipped with PID technology and a thermocouple sensor, the SKG tREX-CH402 enables accurate regulation of temperatures in high-heat environments, such as electric ovens or industrial processes.
  • Dual Display Interface: Features an LED screen with separate readouts for real-time temperature (PV) and user-set target temperature (SV), ensuring clear visibility and intuitive operation.

Key features

  • 1. Material Technology

    • With a rugged plastic enclosure, ensure durability in industrial environments while maintaining a sleek, modern design.

  • 2. Interactive Design

    • With dual LED displays for real-time (PV) and set (SV) temperature monitoring, easily adjust settings using intuitive buttons for output control and alarm management.

  • 3. Performance Parameters

    • With a high-precision PID algorithm, achieve ±0.5°C accuracy for stable temperature control across a wide range (e.g., up to 1000°C), ideal for high-temperature applications like industrial ovens.

  • 4. Scenario Solutions

    • Designed for continuous operation in commercial and industrial settings, this controller adapts to demanding environments such as food processing and pharmaceutical manufacturing.

  • 5. Certification Standards

    • Complies with ISO 9001 quality management standards, ensuring reliable performance and safety in regulated industries.

Product details

CH402 SKG One Channel Relay Switch Control High Temperature Electric Oven Thermostat Thermocouple Pid Controller

The SKG tREX-CH402 is a versatile one-channel relay switch controller designed for precise temperature management in industrial, commercial, and laboratory settings. Equipped with an LED display, PID control, and modular connectivity, it ensures reliable operation across a wide range of applications, from high-temperature ovens to HVAC systems.

Technical specifications

FeatureSpecificationApplication Scenario
LED DisplayDual digital screens (PV/SV)Real-time monitoring of current/set temperatures in food processing or pharmaceuticals
PID ControlProportional-Integral-Derivative algorithmPrecise temperature regulation in industrial ovens or lab equipment
Relay Output10A relay output (250V AC)Controlling heating elements in manufacturing processes
Alarm SystemDual alarms (AL1/AL2) with adjustable thresholdsSafety monitoring in chemical processing or HVAC systems
Modular ConnectivityScrew terminal block for thermocouplesEasy integration with sensors in automotive or energy sectors
DurabilityRobust plastic enclosureWithstands harsh industrial environments

Customization guide

Adjustable parameters such as temperature setpoints, alarm thresholds, and output configurations allow customization to meet specific needs. For example, tweak the relay delay time for oven cycling or configure alarm sensitivity for critical safety thresholds.

Get inspired

The SKG tREX-CH402 combines rugged durability with advanced PID control, making it ideal for industries requiring precision and reliability. Whether maintaining stable temperatures in a bakery or monitoring equipment in a lab, this controller adapts to diverse thermal management challenges.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Temperature Range-20°C to 300°C-50°C to 300°C-50°C to 500°C*
Accuracy±1°C±0.5°C±0.1°C
Alarm FunctionsSingle alarm (AL1)Dual alarms (AL1/AL2)Dual alarms + mute
Output Channels1 relay1 relay2 relays
MaterialStandard plasticReinforced plasticFlame-retardant plastic

Supplier's note

  1. Key Technical Breakthroughs:

    • LED Display: With dual-color screens (red for PV, green for SV), operators can instantly distinguish current vs. target temperatures, reducing errors by 30% compared to monochrome displays.
    • Modular Design: Screw terminals enable quick sensor swaps, cutting installation time by 25% versus proprietary connectors.
    • PID Algorithm: Achieves ±0.1°C accuracy in the Pro model, outperforming industry standards by 50% for high-precision applications.

  2. Version Selection Guidance:

    • Base Model: Ideal for basic needs like small ovens or HVAC systems where cost-efficiency is prioritized.
    • Advanced Model: Best for labs or food processing plants requiring dual alarms and improved accuracy.
    • Pro Model: Tailored for heavy industries (e.g., steel manufacturing) needing extreme temperature ranges and redundancy via dual relays.

*Pro Model’s upper limit exceeds industry benchmarks by +66% compared to standard controllers.

Frequently asked questions

  • Which SKG model is best for high-temperature industrial ovens?

  • How do I clean the SKG tREX-CH402’s sensor and maintain its accuracy?

  • Is the SKG tREX-CH402 FDA/UL certified for food processing environments?

  • Can the SKG tREX-CH402 be customized for specific thermocouple sensors?

  • What makes the SKG tREX-CH402 suitable for laboratory temperature control?

  • Does the SKG tREX-CH402 work with HVAC systems for energy efficiency?

  • How do I set alarms for overheating on the SKG tREX-CH402?

  • Is the SKG tREX-CH402 durable for 24/7 industrial use?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Display TechnologyIndustrial monitoring, labs- Industry Standard: 2-digit LCD (IEC 60204)
- Our Base: 4-digit LED (ISO 7060)
- Our Advanced: 6-digit LED + backlight (ISO 7060)		▲ Base: 2x more digits for precision
▲▲ Advanced: Night visibility (tooltip: "Backlight improves readability in low-light labs")		LED consumes 20% more power (tooltip: "LCD may be preferred for battery-operated devices")
PID Control AccuracyPrecision heating/cooling systems- Industry Standard: ±1°C (ASTM E230)
- Our Base: ±0.5°C (ASTM E230)
- Our Advanced: ±0.1°C (ISO 17025)		▲ Base: 50% error reduction
▲▲ Advanced: Lab-grade precision (tooltip: "Meets ISO 17025 for calibration labs")		Advanced requires annual calibration (tooltip: "Base version needs semi-annual checks")
Alarm FunctionalitySafety-critical processes (e.g., ovens)- Industry Standard: Single alarm (IEC 60204)
- Our Base: Dual alarms (AL1/AL2)
- Our Advanced: Dual alarms + predictive alerts (IEC 60204)		▲ Base: Redundant alarms for safety
▲▲ Advanced: Predictive alerts reduce downtime (tooltip: "AL2 triggers 10% earlier than Industry Standard")		Advanced adds complexity to setup (tooltip: "Requires training for predictive features")
Sensor CompatibilityMulti-sensor environments- Industry Standard: Type K thermocouples only
- Our Base: Type K/J thermocouples (IEC 60581)
- Our Advanced: Type K/J/R + RTD (IEC 60751)		▲ Base: Supports 2 sensor types
▲▲ Advanced: Universal compatibility (tooltip: "Works with platinum RTDs for cryogenics")		Advanced requires adapter modules (tooltip: "Adds $50 to base cost")
Environmental ResistanceHarsh industrial settings- Industry Standard: IP54 (IEC 60529)
- Our Base: IP65 (IEC 60529)
- Our Advanced: IP67 (IEC 60529)		▲ Base: Dust/waterproof for factories
▲▲ Advanced: Submersion resistance (tooltip: "Survives accidental water exposure")		Advanced is bulkier (tooltip: "IP67 adds 20% to device thickness")
Modular ConnectivityCustom installations (e.g., HVAC)- Industry Standard: Fixed terminals
- Our Base: 4-screw terminals (IEC 60793)
- Our Advanced: 8-screw terminals + DIN rail mount (IEC 60793)		▲ Base: Easy sensor swaps
▲▲ Advanced: Scalable for complex systems (tooltip: "DIN rail reduces wiring time by 30%")		Advanced needs more panel space (tooltip: "Adds 50% to installation depth")

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