🌡️ Advanced Digital Temperature Controller — −50 ~ 120 °C • 20 A Relay

🔀 Choose Your Version (select on this page)

• Voltage: AC 110–220 V

• Voltage: DC 12 V

• Voltage: DC 24 V

🌟 Highlights

• 📏 Wide range: −50 to 120 °C

• 🔬 Precision: 0.1 °C measurement, control, and hysteresis

• 🧮 Resolution: −9.9 ~ 99.9 °C → 0.1 °C, beyond that → 1 °C

• ⚡ Heavy-duty relay: 20 A output for high-power loads (use proper fusing)

• ⏱ Fast refresh: ~0.5 s updates

• 🌊 Sensor: NTC 10K (0.5%) waterproof probe for accurate readings

• 🔔 Visual/Audible feedback: LEDs + buzzer for status, alarms, delays

🧠 Smart Controls

• Modes: Heating (H) or Cooling (C)

• Adjustables: setpoint, hysteresis, max/min limits, sensor offset, compressor/heater delay start

• Indicators:

  • Blinking LED → start-up delay active

  • Solid LED → relay energized

  • Display warnings → sensor error, out-of-range, high-temp alarm

• One-button setup: press SET to edit, ▲/▼ to adjust, tap SET to confirm

• Factory reset: long-press combo to restore defaults (per manual)

📐 Specifications

• Supply (by variant): AC 110–220 V or DC 12 V or DC 24 V

• Control Output: relay NO/COM, 20 A max (AC 110/220 V or DC loads up to relay rating)

• Measure/Control Range: −50 ~ 120 °C

• Accuracy / Hysteresis step: 0.1 °C

• Display Resolution: 0.1 °C (−9.9~99.9 °C), else 1 °C

• Refresh Rate: ~0.5 s

• Probe: NTC 10K 0.5%, waterproof lead

For inductive or high-inrush loads (motors, compressors, transformers), switch a contactor/SSR and add a snubber/RC across the relay contacts.

🧰 Typical Uses

Incubators, fermentation, aquariums, terrariums, seedling heat mats, greenhouse fans/heaters, fridge/freezer conversions, and general DIY temperature control.

📦 Package Includes

• 1 × Digital Temperature Controller — voltage version selected on this page

• 1 × NTC 10K Waterproof Sensor

• 1 × User Manual

💥 Volume Discount

• 10% OFF for 2 units • 15% OFF for 3 units • 20% OFF for 4+ units (auto-applied)

🇺🇸 Premium Support & Shipping

• 🇺🇸 US Stock / Fast Shipping — 2–4 day delivery from Oklahoma; your purchase supports a US-based small business.

• 🧪 Quality Checked & Tested — spot-checked before shipping.

• 🔁 Easy Returns — 30-day returns; we pay return shipping.

• 📦 Professional Packaging — safe delivery, 100% guaranteed.