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

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🌡️ Master your climate with precision and ease—because comfort is non-negotiable!

ROBUST RELIABLE - Waterproof NTC sensor ensures durability in any DIY or professional HVAC project.
REAL TIME MONITORING - Clear 3-digit LED display keeps you informed at a glance, always.
VERSATILE AUTOMATION - Seamlessly switch devices on/off based on temperature for smarter energy use.
PLUG PLAY SIMPLICITY - No programming needed—intuitive 3-button setup for instant customization.
PINPOINT PRECISION CONTROL - Maintain your environment with ultra-accurate 0.1°C temperature sensing.

The Generic W1209 Digital LED Temperature Controller is a compact, 12V DC-powered module featuring a high-precision 0.1°C NTC thermistor sensor and a bright 3-digit 7-segment LED display. Designed for easy DIY integration, it offers a simple 3-button interface with no programming required, enabling reliable on/off control of heating or cooling devices. Its waterproof sensor and onboard relay make it ideal for smart temperature regulation in HVAC, electric heaters, and other automated systems.

Reviews

A**R

Worth buying

Very useful and very good quality

18.08.2025

A**R

Still using this No changes

Value for money, good accuracy, good functions

22.10.2024

S**H

Must buy

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

27.09.2025

A**H

Good product

Good

20.08.2023

P**R

Relay not working

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

29.08.2024

T**Z

Temperature Probe

Functioning properly.

6.07.2025

S**M

NTC SENSORE

GOOD product

22.10.2024

S**A

Good

7.09.2025

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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TT$89

Duties & taxes incl.

Trinidad and Tobagostore

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Brand	THEMISTO
Manufacturer	SunRobotics
Country of Origin	India
Model number	CTE052
Colour	Green
Number of Memory Sticks	1
Special Feature	Equipment,Waterproof
Specific Product Use	Electric Baseboard Heater
Item Weight	20 g
Product Dimensions	16 x 14 x 2 cm; 20 g
Item model number	CTE052
Item Height	20 Millimeters
Item Width	14 Centimeters
Connectivity Technology	Wi-Fi
Voltage	12 Volts
Power Source	Battery Powered
Included Components	1pc

Generic W1209 Digital LED DC 12V + NTC Sensor heat cool temp thermostat temperature switch Module On/Off Controller electronic Board DIY

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