ATM you can buy Temperature Controller Thermostat Module for $6.99 (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Best price?
Latest price update (UTC time):
Output: Relay Contact Capacity 20A 12V / 10A 220V, Sensor: NTC10K Waterproof sensor, Dimension: 79mm *43mm*26mm, Resolution Ratio: 0.1°C(-9.9-99.9); 1°C(other range), Environmental requirements: -10-60°C / humidity 20%-85%RH, Sensor wire: 1 meter, Cutting Size: 73mm*39mm, Control accuracy: 0.1°C, Measurement accuracy: ±0.1°C, Temperature Control Range: -55℃-120℃, Power Supply: DC 12V 24V/ AC 110V-220V (Optional), Color of Displaying: red/blue
Banggood ($6.99)
Banggood warehouse is located in China. Coupons for Temperature Controller Thermostat Module? Nope, there’re no coupons in Banggood. The question is – is it a good price? From what I can see this price is higher than average price ($4.59).
Link: Banggood product page
Price: $6.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): Cuponation9, BG7fbb9e, BG00c906, BG589b2e
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Temperature Controller Thermostat Module [EU] ($-3)
Aliexpress
There’re some similar (or not) items on Aliexpress
![INKBIRD ITC-308 Heating and Cooling Dual Relay Temperature Controller [EU]](https://couponsfromchina.com/wpthumbnails/Resized32748373141.jpg)
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for Temperature Controller Thermostat Module.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).