can this be useful to maintain a stable constant temperature at 20 or 25 Degree of an object on cool side of peltier module. If yes then how

Yes it can be used for cooling u just have to connect a pc fan with it and then long press set button then po will be displayed on te screen then click on set again and turn it to colling setting

What is the relay rating? (Appliance watts)

12V DC coil, 14V DC 20A/125V AC 20A

Generic W1209 Digital Led Dc 12v Ntc Sensor Heat Cool

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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€ 4.82

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌡️ Master your microclimate with precision and style!

COMPACT POWERHOUSE - Sleek 48x40x14mm design fits anywhere, powered by safe 12V DC for versatile DIY projects.
PLUG PLAY SIMPLICITY - No programming needed—intuitive 3-button keypad lets you set and forget with ease.
BUILT IN RELAY AUTOMATION - Seamlessly switch devices on/off based on temperature thresholds—smart control made simple.
REAL TIME DIGITAL DISPLAY - Instantly monitor your environment with a bright 3-digit 7-segment LED readout.
PINPOINT TEMPERATURE CONTROL - Achieve ultra-precise climate management with 0.1°C accuracy—no guesswork, just perfect comfort.

The W1209 Digital Temperature Controller is a compact, 12V-powered module featuring a high-accuracy (0.1°C) NTC waterproof sensor and a clear 3-digit LED display. Designed for easy DIY integration, it offers real-time temperature monitoring and automated on/off control via an onboard relay, making it ideal for HVAC, heating, and cooling applications without any programming hassle.

Specifications

ASIN	B07CRYLTVM
Best Sellers Rank	#17,785 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #93 in Temperature Controllers
Brand	THEMISTO
Colour	Green
Connectivity Technology	Wi-Fi
Country of Origin	India
Customer Reviews	3.9 3.9 out of 5 stars (1,374)
Date First Available	1 May 2018
Generic Name	ROBOTICS COMPONENT
Importer	Aptechdeals ; B-1/7 Nanhey Park Uttam Nagar New Delhi- 110059; [email protected] ;88106-13060
Included Components	1pc
Item Dimensions LxWxH	16 x 14 x 2 Centimeters
Item Height	20 Millimeters
Item Weight	20 g
Item Width	14 Centimeters
Item model number	CTE052
Manufacturer	Select brands international pvt ltd. 44 pologround industrial area,Indore 452001 (M.P.), Mo: 6260171052, SunRobotics
Model number	CTE052
Net Quantity	1 Count
Number of Memory Sticks	1
Packer	Bombay Electronics, 13B Shamrao Vithal Marg, Off Lamington Road. Mumbai - 400007
Power Source	Battery Powered
Product Dimensions	16 x 14 x 2 cm; 20 g
Special Feature	Equipment,Waterproof
Specific Product Use	Electric Baseboard Heater
Voltage	12 Volts

Reviews

A**R

Worth buying

Very useful and very good quality

18.08.2025

R**I

Good

Good product it's also working in - tempreture

1.04.2026

N**H

24.01.2026

M**A

Buy it

Work great 100% satisfied..highly recommended

13.02.2026

P**R

Relay not working

Quality ke naam se zero hai relay work nahin kar rahi hai rest of money

29.08.2024

D**S

Value for money

Good conditions

7.10.2025

S**L

NTC SENSORE

GOOD product

22.10.2024

S**H

Must buy

I enjoyed this diy material still now working with 320days working

27.09.2025

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

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