W1209 24V -50 - 110C Digital Thermostat Temperature Control Switch Sensor Module

Brand: Envistia Sold By: TopSelected
$21.32 In Stock
Ships from United States Arrives in 7-14 business days
Item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
Delivery:
13
July2026
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22
July2026
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W1209 24V -50 - 110C Digital Thermostat Temperature Control Switch Sensor Module

W1209 24V -50 - 110C Digital Thermostat Tempera...

$21.32

Product Details


W1209 24V -50°C to +110°C Digital Thermostat Temperature Control Switch Sensor Module

The W1209 is a low cost yet highly functional thermostat controller. This module intelligently controls power to most types of electrical devices based on the temperature sensed by the included high accuracy NTC remote temperature sensor.

The cooler, heater, or fan is connected to a power supply (either DC or AC) through the relay contacts K0 and K1, and the temperature on/off setpoints are programmed into the W1209 using the onboard Set, Increase, and Decrease buttons and display. The relay contacts are then open and closed, acting as a power switch for the cooler/heater, based on the temperature measured by the NTC temperature sensor (included with the module) and the setpoints programmed into the W1209 controller.  

A 24V DC power supply or battery powers the module. Although this module has an embedded microcontroller, no programming knowledge is required. 3 tactile switches allow for configuring various parameters including on & off trigger temperatures. The on-board relay can switch up to a maximum of 20A at 16V DC, or 10A at 125V AC. The current temperature is displayed in degrees Centigrade via its 3 digit seven segment display and the current relay state by an on-board LED.

Specifications:
  • Temperature Control Range: -50 C to +110 C
    (NOTE: All temperatures are set and displayed in Celsius. It cannot be switched to Fahrenheit)
  • Resolution at -9.9 to 99.9: 0.1 C
  • Resolution at all other temperatures: 1 C
  • Measurement Accuracy: 0.1 C
  • Control Accuracy: 0.1 C
  • Refresh Rate: 0.5 Seconds
  • Input Support Power (DC): 24V. The maximum current draw is 65mA (operates the module, does not power the load).
    NOTE: The maximum input support voltage should not exceed 24V +/-10%. The silkscreen on the circuit board input is marked 12V, but the input for this model is 24V, not 12V. The voltage marked on the relay indicates the module's actual voltage.  
  • Measuring Input: NTC (10K 0.5%)
  • Waterproof Sensor: 0.3M (~1 ft) cable
  • Probe tip dimensions: 20mm long x 4mm diameter
  • Display Color: Blue
  • Output: 1 Channel Relay Output, Capacity: 10A at 16VDC,  20A at 125VAC
Power Consumption:
  • Static Current: <=35mA
  • Maximum Operating Current: <=65mA
Environmental Requirements:
  • Temperature: -10 ~ 60 C
  • Humidity: 20-85%
Dimensions & Weight:
  • 48mm x 40mm x 14mm (1.9" x 1.6" x 0.6") (LxWxH)
  • Weight: 19 grams (Controller - 16 grams; temperature sensor and cable - 3 grams)
The display defaults to showing the measured temperature.
Short press the "SET" button and then press "+" and "-" buttons to raise or lower the temperature setpoint.
 Long press the “SET” button to activate the menu in order to change the P0 through P6 parameters listed in the Settings Chart below.
The setpoint and all parameter settings are stored in nonvolatile memory and will be retained if power to the controller is turned off.

Settings Chart:
Code: Description / Range / Default Value
P0: Set Heating or Cooling Mode / C/H / C
P1: Hysteresis Set / 0.1C - 15C / 2C
P2: Upper Temperature Limit / 110C / 110C
P3: Lower Temperature Limit / -50C / -50C
P4: Temperature Calibration / -7.0C ~ 7.0C / 0C
P5: Delay Start Time / 0-10 mins / 0 mins
P6/P7: High Temperature Alarm / 0C - 110C / OFF
P8: Factory Reset (Not included in all firmware versions. Can also be reset by pressing and hold the + and - buttons for 5 seconds.)

Package Includes:
W1209 24V -50°C - 110°C Digital Thermostat Temperature Control Switch Sensor Module
NTC 10K Temperature Sensor with ~12 inch (0.3M) cable
Online installation and operating instructions (Available in English and Spanish / Disponible en inglés y español)

Need a longer probe? See our

Looking for a 12V W1209 (with 12V support power)? See our

Get it faster! Stocks and ships from our US Colorado office for quick delivery.

We provide FREE USPS Ground Advantage Shipping with Tracking - Not Economy Shipping

Shipping Overview: 

• Shipping: Standard Domestic Shipping within the United States charges first item USD 6.99 and additional item USD 3.0 each. Standard International Shipping from United Kingdom, Germany, Italian and Japan to the United States charges first item USD 11.99 and additional item USD 4.0 each.

• Import Duty: Everymarket collects applicable duties and taxes on goods imported into the U.S. at checkout, it's calculated based on the goods value multiply by the rate. For United Kingdom and China goods is 10%, Germany, Italian and Japan goods is 15%. We are committed to making your U.S. shopping experience simple and transparent. The method of delivery—either Delivered Duty Paid (DDP) or Delivered Duty Unpaid (DDU)—depends on whether duties and taxes are collected at the time of your purchase.

• Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

• Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. Average transit times to the United States is 3 - 7 Business days and average transit times to International is 7 - 14 Business days 

• International Shipping: Currently, we only ship within the USA. 

• Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs:
    - If your return is approved due to a defective, damaged, or incorrect item, we will provide a prepaid return shipping label at no cost.

    - If the item has no quality issues and matches the product listing and description, please contact our Customer Service team before returning it. Once your return is authorized, you must return the item according to the provided instructions. In this case, the return shipping cost is the customer's responsibility.

    - We are not responsible for return shipping costs for items returned without prior authorization.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Please contact us to get return labels.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 (800) 660-3783

  • Email: cs@everymarket.com

 


W1209 24V -50°C to +110°C Digital Thermostat Temperature Control Switch Sensor Module

The W1209 is a low cost yet highly functional thermostat controller. This module intelligently controls power to most types of electrical devices based on the temperature sensed by the included high accuracy NTC remote temperature sensor.

The cooler, heater, or fan is connected to a power supply (either DC or AC) through the relay contacts K0 and K1, and the temperature on/off setpoints are programmed into the W1209 using the onboard Set, Increase, and Decrease buttons and display. The relay contacts are then open and closed, acting as a power switch for the cooler/heater, based on the temperature measured by the NTC temperature sensor (included with the module) and the setpoints programmed into the W1209 controller.  

A 24V DC power supply or battery powers the module. Although this module has an embedded microcontroller, no programming knowledge is required. 3 tactile switches allow for configuring various parameters including on & off trigger temperatures. The on-board relay can switch up to a maximum of 20A at 16V DC, or 10A at 125V AC. The current temperature is displayed in degrees Centigrade via its 3 digit seven segment display and the current relay state by an on-board LED.

Specifications:
  • Temperature Control Range: -50 C to +110 C
    (NOTE: All temperatures are set and displayed in Celsius. It cannot be switched to Fahrenheit)
  • Resolution at -9.9 to 99.9: 0.1 C
  • Resolution at all other temperatures: 1 C
  • Measurement Accuracy: 0.1 C
  • Control Accuracy: 0.1 C
  • Refresh Rate: 0.5 Seconds
  • Input Support Power (DC): 24V. The maximum current draw is 65mA (operates the module, does not power the load).
    NOTE: The maximum input support voltage should not exceed 24V +/-10%. The silkscreen on the circuit board input is marked 12V, but the input for this model is 24V, not 12V. The voltage marked on the relay indicates the module's actual voltage.  
  • Measuring Input: NTC (10K 0.5%)
  • Waterproof Sensor: 0.3M (~1 ft) cable
  • Probe tip dimensions: 20mm long x 4mm diameter
  • Display Color: Blue
  • Output: 1 Channel Relay Output, Capacity: 10A at 16VDC,  20A at 125VAC
Power Consumption:
  • Static Current: <=35mA
  • Maximum Operating Current: <=65mA
Environmental Requirements:
  • Temperature: -10 ~ 60 C
  • Humidity: 20-85%
Dimensions & Weight:
  • 48mm x 40mm x 14mm (1.9" x 1.6" x 0.6") (LxWxH)
  • Weight: 19 grams (Controller - 16 grams; temperature sensor and cable - 3 grams)
The display defaults to showing the measured temperature.
Short press the "SET" button and then press "+" and "-" buttons to raise or lower the temperature setpoint.
 Long press the “SET” button to activate the menu in order to change the P0 through P6 parameters listed in the Settings Chart below.
The setpoint and all parameter settings are stored in nonvolatile memory and will be retained if power to the controller is turned off.

Settings Chart:
Code: Description / Range / Default Value
P0: Set Heating or Cooling Mode / C/H / C
P1: Hysteresis Set / 0.1C - 15C / 2C
P2: Upper Temperature Limit / 110C / 110C
P3: Lower Temperature Limit / -50C / -50C
P4: Temperature Calibration / -7.0C ~ 7.0C / 0C
P5: Delay Start Time / 0-10 mins / 0 mins
P6/P7: High Temperature Alarm / 0C - 110C / OFF
P8: Factory Reset (Not included in all firmware versions. Can also be reset by pressing and hold the + and - buttons for 5 seconds.)

Package Includes:
W1209 24V -50°C - 110°C Digital Thermostat Temperature Control Switch Sensor Module
NTC 10K Temperature Sensor with ~12 inch (0.3M) cable
Online installation and operating instructions (Available in English and Spanish / Disponible en inglés y español)

Need a longer probe? See our

Looking for a 12V W1209 (with 12V support power)? See our

Get it faster! Stocks and ships from our US Colorado office for quick delivery.

We provide FREE USPS Ground Advantage Shipping with Tracking - Not Economy Shipping

Shipping Overview: 

• Shipping: Standard Domestic Shipping within the United States charges first item USD 6.99 and additional item USD 3.0 each. Standard International Shipping from United Kingdom, Germany, Italian and Japan to the United States charges first item USD 11.99 and additional item USD 4.0 each.

• Import Duty: Everymarket collects applicable duties and taxes on goods imported into the U.S. at checkout, it's calculated based on the goods value multiply by the rate. For United Kingdom and China goods is 10%, Germany, Italian and Japan goods is 15%. We are committed to making your U.S. shopping experience simple and transparent. The method of delivery—either Delivered Duty Paid (DDP) or Delivered Duty Unpaid (DDU)—depends on whether duties and taxes are collected at the time of your purchase.

• Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

• Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. Average transit times to the United States is 3 - 7 Business days and average transit times to International is 7 - 14 Business days 

• International Shipping: Currently, we only ship within the USA. 

• Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs:
    - If your return is approved due to a defective, damaged, or incorrect item, we will provide a prepaid return shipping label at no cost.

    - If the item has no quality issues and matches the product listing and description, please contact our Customer Service team before returning it. Once your return is authorized, you must return the item according to the provided instructions. In this case, the return shipping cost is the customer's responsibility.

    - We are not responsible for return shipping costs for items returned without prior authorization.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Please contact us to get return labels.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 (800) 660-3783

  • Email: cs@everymarket.com

 

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