Can I set to switch of when it reaches 4ºC and switch on again at 7ºC - I want to cool

In the manual it says“Setting the hysteresis parameter P1:This sets how much change in temperature must occur before the relay will change state. For example if set to the default 2oC and the the trigger temperature has been set to 25oC, it will not deenergise until the temperature falls back below below 23oC. Setting this hysteresis helps stop the thermostat from continually triggering when the temperature drifts around the trip temperature.”Well, this is wrong. When in C (cooling) mode, the relay is energized (closed) when the probe temperature reaches t = Trigger Setting + Hysteresis setting (P1) and de-energizes (opens) when while going down (cooling) it reaches t= Trigger Setting. So, in the example given in the manual, the relay will close at t=25+2 = 27 Celsius, and will open again when t=25 Celsius is reached.Now, for the question asked:Set Trigger Temperature at 4 Celsius, and Hysteresis (P1) at 3 Celsius. It will close at 4+3 = 7 Celsius, and open again at 4 Celsius.

What are the K0 and K1 terminals for and how do I get them to work? They are currently showing no voltage across them?

bhai Mera bhi battery ka connection ok hai Lekin KO and K1 terminal me voltage supply nhi ho rha

Hi. Is this device also available in a 300 celsius version? (for example 0-350 or 0-400 celsius)Thanks

Hi, yes look for ID: 1310626it is 0-300°C.Best regards

Is there a 24V version of this?

I am not sure . I only need a 12v version.

Hi, I need a 12v temperature controller that will increase the speed of a fan as the temperature rises, do you have anything ? thanks.

it's usually use on over hit or low temperature cut off.

ho comprato due di questi termostati e tutti e due non leggono temperature al di sopra dei 50 gradi celsius. il display non legge più sopra questa temperatura, anche se l’oggetto ha un massimo di 110 gradi. perché?

maybe you can contact the customer service.

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Geekcreit

Geekcreit® W1209 DC 12V -50 to +110 Temperature Sensor Control Switch Thermostat Thermometer

Name: Geekcreit® W1209 DC 12V -50 to +110 Temperature Sensor Control Switch Thermostat Thermometer
Brand: Geekcreit
SKU: bg-933303
Price: 2000 INR
Availability: InStock
Rating: 5.0 (1325 reviews)

5.01,325 ratings

AI Summary

Sensor & Detector Module for everyday users

The Geekcreit® W1209 DC 12V -50 to +110 Temperature Sensor Control Switch Thermostat Thermometer by Geekcreit is a mid-range sensor & detector module designed for everyday users. Customers praise its easy to set up and use and excellent build quality. 100% of buyers rate it 4★ or above.

✓ easy to set up and use✓ excellent build quality✓ great value for money✓ fast and responsive

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SKU: bg-933303Category: Sensor & Detector Module

About This Product

The Geekcreit® W1209 DC 12V -50 to +110 Temperature Sensor Control Switch Thermostat Thermometer by Geekcreit is a mid-range sensor & detector module designed for everyday users. Customers highlight its easy to set up and use and excellent build quality.

Customer Verdict

100% of buyers rated this product 4 stars or above. The most appreciated qualities are: easy to set up and use, excellent build quality, great value for money, fast and responsive.

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Specification:

Supply voltage: DC 12V
Static current: ≤35MA, attract current ≤65MA
Output voltage: DC 12V
Output power: 20A relay
Measurement input: NTC (10K 0.5%) Waterproof Sensor
Environmental requirements: -10 ~ 60℃, Humidity 20% ~ 85%
Dimensions: 48 x 40mm
Cable length: About 52 cm
Temperature control mode: ON / OFF
Temperature range: -50 ~ +110°C
Control accuracy: 0.1°C
Hysteresis accuracy: 0.1°C
Refresh rate: 0.5S
High temperature protection: 0 ~ 110°C
Resolution: When temperature is 0.1°C, the resolution is -9.9~99.9, other temperature segment is 1°C

Relay: Due to different batches, the silk screen above is marked 20A 125VAC, and the load capacity is within 2500W. In the case of 250VAC, the maximum load is 10A

Package included:

1 x Digital temperature control switch with cable

Geekcreit® W1209 DC 12V -50 to +110 Temperature Sensor Control Switch Thermostat Thermometer

Product Safety Information

Setup Guide

Identify the pins

Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.

Wire to your microcontroller

Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.

Install libraries

In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.

Upload example sketch

Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.

Calibrate if needed

Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.

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Geekcreit® W1209 DC 12V -50 to +110 Temperature Sensor Control Switch Thermostat Thermometer

About This Product

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Setup Guide

Upgrade Options

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