---
product_id: 13783914
title: "WILLHI WH1436A 10A Temperature Controller 110V Digital Thermostat Switch Sous Vide Controller NTC 10K Sensor Improved Version"
brand: "willhi"
price: "£37.65"
currency: GBP
in_stock: true
reviews_count: 13
category: "Willhi"
url: https://www.desertcart.co.uk/products/13783914-willhi-wh1436a-10a-temperature-controller-110v-digital-thermostat-switch-sous
store_origin: GB
region: United Kingdom
---

# 10A max load, 1100W power Plug & play, no wiring hassle Wide temp range -58°F to 230°F WILLHI WH1436A 10A Temperature Controller 110V Digital Thermostat Switch Sous Vide Controller NTC 10K Sensor Improved Version

**Brand:** willhi
**Price:** £37.65
**Availability:** ✅ In Stock

## Summary

> 🌡️ Take control of your environment—because precision never goes out of style!

## Quick Answers

- **What is this?** WILLHI WH1436A 10A Temperature Controller 110V Digital Thermostat Switch Sous Vide Controller NTC 10K Sensor Improved Version by willhi
- **How much does it cost?** £37.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/13783914-willhi-wh1436a-10a-temperature-controller-110v-digital-thermostat-switch-sous)

## Best For

- willhi enthusiasts

## Why This Product

- Trusted willhi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **No WiFi, No Fuss:** Privacy-first design with zero internet dependency—total control without distractions.
- • **Dual Mode Flexibility:** Seamlessly switch between heating and cooling modes to suit any project or pet environment.
- • **Robust 10A Load Capacity:** Supports up to 1100W devices, perfect for home brewing, aquariums, and more.
- • **Long 9.8ft Waterproof Sensor:** Accurate, durable sensing with enhanced waterproof probe for reliable monitoring.
- • **Precision Temperature Control:** Maintain your ideal temp with 0.1°F resolution for flawless results every time.

## Overview

The WH1436A Digital Temperature Controller is a versatile, plug-and-play thermostat designed for precise temperature regulation between -58°F and 230°F. Rated for 10A and 1100W at 110V, it supports both heating and cooling modes with a high-accuracy 0.1°F resolution. Featuring a 9.8ft waterproof NTC sensor probe, compressor delay protection, and high/low temperature alarms, it’s ideal for applications like sous vide cooking, pet breeding, fermentation, and aquarium management. Its no-WiFi design ensures privacy and reliability, making it a trusted choice for professionals and hobbyists alike.

## Description

The WH1436 temperature controller can turn on/off an electric appliances at desired temperature. For example, you can use the controller to turn on a heater at 99. 9 F and turn it off at 100 F. Or turn on a freeze at 52 F and turn it off at 45. 3 F. (Please be noted that the controller itself doesn't change temp. You need to use heater or refrigeration equipment with it. ) Main features: Plug and play. No worry about wiring. Maximum load: 1100 watts @110 volts Heating OR refrigeration working mode. Celsius or Fahrenheit read-out. Temperature calibration. Compressor delay protection time setting. High and low temperature alarms are available(This is a useful function. You can use this feature to alarm you when the temperature overshoots your desired temperature) Auto shut off timer(It doesn't turn off the controller itself. The timer just turns off the load when specified minutes counts down to 0. ) Specification: 1. Power supply: AC 110V 50/60Hz 2. Measure range: -58 ~ 230 F(-50 ~ 110 C) 3. Temperature resolution: 0. 1 4. Accuracy: 0. 5 5. Working mode: Heating OR Cooling mode 6. Slew range of temp controlling: 0. 1 - 230(difference between turn-on degree and turn-off degree) 7. Control resolution: 0. 1 8. Power consumption: less than 3W 9. Relay contact capacity: 10A 10. Store setting after power off: YES 11. press or delay protection: YES 12. High and Low Temperature alarm: Yes 13. Product size: 4. 9x3. 6x1. 8 inch (12. 5x9. 1x4. 5 cm) 14. Sensor Cable length: 3m(9. 8ft) Advanced function: 1. Switch temperature unit(Default: F): F or C 2. Switch resolution(Default: 0. 1): 0. 1 or 1 3. Auto shut off timer(Default: OFF) Package Content: 1x WH1436A Temperature controller 1x sensor cable

Review: So far works pretty well - I bought this to control the temperature of a water bath for making kefir, which ferments at 75 degrees. I use it to cycle an old slow cooker and use an old aquarium air pump for water circulation (see photo) to approximate a sous vide immersion circulator. The probe is sealed and waterproof, which allows me to submerge it in the bath to monitor temperature. I also plan to use it to cycle a space heater in an oven to proof dough, though I haven't tried this yet. Using the controller to cycle a slow cooker works for this application but isn't ideal. Because slow cookers work by heating a ceramic insert which then heats the water, the insert tends to be heated to a higher temperature then the water and continues to heat the water when power to the cooker is shut off. This causes the controller to overshoot the target temperature. If the water is already at about the target temperature it only overshoots by a small amount (for my application about a degree), but if the water is being brought up to temperature it can overshoot the target temperature by at least 5-10 degrees. So if you are using this as a sous vide cooker for food which demands accurate temperature control, I would recommend letting the temperature stabilize before adding your food to the water bath. Or use this controller to power a small immersion water heater of the sort used for heating water in a coffee cup (make sure to select one which uses less power than the controller's maximum power output rating). Since an immersion heater heats the water instead of the insert and does not "store" as much heat as a slow cooker ceramic insert, it will not continue to heat the water when it's turned off. This is what commercial sous vide circulators use to heat water, and they circulate the water to prevent a "hot spot" immediately around the heating element. Beyond that, the temperature measured by the controller is accurate to within a degree of what's measured by my kitchen thermometers, the controller is easy to set up, and the instruction sheet is adequate. The on/off temperatures can be adjusted in increments of a tenth of a degree, so even though it's not a PID controller it can still accurately control temperature under the right circumstances. This is a nice tool, but to get good results from it you have to have an understanding of the environment in which it's being used.
Review: It is durable, reasonably priced and does the job. - I purchased this controller back in 2018 to keep some new chicks warm. I have used it several times since then for that purpose. I am setting it up again for the same job and realized I never gave a review. Positive Features: * It allows you to set a low and high threshold allowing one to keep the temperature in the desired range. * It has both a high and low alarm feature, which alerts you if the temperature goes below or exceeds the desired temperature range. * It allows the temperature probe to be calibrated with an offset. I found my probe was accurate enough over the desired range, not requiring an offset be entered. * It can be used with both heat devices, a heat lamp in my case, and cool things. The maximum controlled power is limited (1100 w), so it would not work with a high power refrigeration unit without an additional relay. Not a problem in my case. * For cooling, it allows you to set a compressor on time to prevent rapid cycling which could be bad. * The manual, if one ignores a few typos, is detailed enough to make setting up fairly easy. Just don’t lose the manual. * It does not require wifi, does not phone home, so it does not clog up your internet connection. A very positive feature. Negative Issues: The case is yellowing slightly, which happens with this type plastic. Not a deal stopper. Would I buy it again, yes.

## Features

- WE'VE IMPROVED THE TEMP CONTROLLER: This is NOT a humidity controller! Simplified operation, larger power, wider control range, standard U.S. outlet, enhanced waterproof sensor probe. Get the new version right now. NO WIFI connection!
- HEATING OR REFRIGERATION WORKING MODE: Switch between heating mode and refrigeration mode according to the settings and device you plug into the controller. NO wifi connection!
- MAX LOAD: Rated for 10A,1100W at 110V. Outlet not compatible with 2 hot lines 220V plug (Celsius or Fahrenheit Read-out).
- PLUG AND PLAY: Insert the probe and then set ON & OFF temp. This temperature regulator will turn your device on/off as programmed to keep temperature between the desired range. Comes with a 3m(9.8ft) probe sensor. Measure range is -58 ~ 230°F(-50 ~ 110°C). The thermostat's ambient temperature range is -40°F to 176°F (-40°C to 80°C).
- WIDE APPLICATIONS: Our thermostat outlet is widly used for seedling germination, home brewing, fermertation, rooting, sous vide, incubation, pet breeding, aquarium, heaters or cooling devices such as heat mat/lamp, refrigerator/frezzer....

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00V4TJR00 |
| Best Sellers Rank | #31,565 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #29 in Temperature Controllers |
| Brand | WILLHI |
| Brand Name | WILLHI |
| Color | White |
| Customer Reviews | 4.4 out of 5 stars 2,670 Reviews |
| Display Type | Digital |
| Global Trade Identification Number | 00711463669641 |
| Included Components | NTC temperature sensor |
| Item Dimensions L x W x H | 4.9"L x 3.6"W x 1.8"H |
| Item Type Name | temperature controller |
| Item Weight | 1 Pounds |
| Manufacturer | WILLHI |
| Material | Plastic |
| Material Type | Plastic |
| Model | WH1436A |
| Operating Temperature | 230 Degrees Fahrenheit |
| Part Number | WH1436 |
| Product Dimensions | 4.9"L x 3.6"W x 1.8"H |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 711463669641 798154017615 |
| Unit Count | 1.0 Count |
| Voltage | 110 Volts, 220 Volts |
| Warranty Description | 1 Year from purchase date |

## Product Details

- **Brand:** WILLHI
- **Color:** White
- **Material:** Plastic
- **Product Dimensions:** 4.9"L x 3.6"W x 1.8"H
- **Voltage:** 110 Volts, 220 Volts

## Images

![WILLHI WH1436A 10A Temperature Controller 110V Digital Thermostat Switch Sous Vide Controller NTC 10K Sensor Improved Version - Image 1](https://m.media-amazon.com/images/I/61SNSFbZ0kL.jpg)
![WILLHI WH1436A 10A Temperature Controller 110V Digital Thermostat Switch Sous Vide Controller NTC 10K Sensor Improved Version - Image 2](https://m.media-amazon.com/images/I/61UXgcUmWtL.jpg)
![WILLHI WH1436A 10A Temperature Controller 110V Digital Thermostat Switch Sous Vide Controller NTC 10K Sensor Improved Version - Image 3](https://m.media-amazon.com/images/I/61FYwS-Xm+L.jpg)
![WILLHI WH1436A 10A Temperature Controller 110V Digital Thermostat Switch Sous Vide Controller NTC 10K Sensor Improved Version - Image 4](https://m.media-amazon.com/images/I/61t-ew92ScL.jpg)
![WILLHI WH1436A 10A Temperature Controller 110V Digital Thermostat Switch Sous Vide Controller NTC 10K Sensor Improved Version - Image 5](https://m.media-amazon.com/images/I/815bg0Yf4+L.jpg)

## Questions & Answers

**Q: If power is lost, does it remember the temperature setting or does it need to be reset?**
A: This device remember all the settings even in case of accidental power supply is lost. You do not need to reset everything you use it.

**Q: What is that output connector?  Is that some sort of US / Euro combo socket?  Will it accept a USA standard NEMA-15 plug and hold it securely?**
A: Yes. The socket on the controller is compatible with most plugs in the world. It's not a problem to hold US standard NEMA-15 plug securely.

**Q: I purchased one of these and did not come with instructions.  could someone tell me how to change c- f? i've tried everything.  also other codes?**
A: Press SET and UP at the same time and release buttons until CF appears on the screen. Then click set, then click UP or Down to choose C or F.Please note, once advanced setting is changed, all other settings will be reset to default. Please email us service@bayite.com for PDF manual.

**Q: can the temperature probe be submerge in liquid? I want to use it for my slow cooker for sous vide cooking...**
A: I use this device to measure the water temperature in my old fashioned ceramic crock slow cooker by filling the crock with water, placing the probe into the water and setting the temperature to on at low setting and off at high setting. I plug the slow cooker into the thermometer, and turn it on high to get to temperature(adding hot water from the sink to shorten this wait time)  then low for cooking. It measures the temp of the water very accurately and I've been able to cook vacuum sealed meats in the water to the desired temperature. I have had 3 out of 3 successful cooking events using this method.

## Customer Reviews

### ⭐⭐⭐⭐⭐ So far works pretty well
*by A***R on March 9, 2020*

I bought this to control the temperature of a water bath for making kefir, which ferments at 75 degrees. I use it to cycle an old slow cooker and use an old aquarium air pump for water circulation (see photo) to approximate a sous vide immersion circulator. The probe is sealed and waterproof, which allows me to submerge it in the bath to monitor temperature. I also plan to use it to cycle a space heater in an oven to proof dough, though I haven't tried this yet. Using the controller to cycle a slow cooker works for this application but isn't ideal. Because slow cookers work by heating a ceramic insert which then heats the water, the insert tends to be heated to a higher temperature then the water and continues to heat the water when power to the cooker is shut off. This causes the controller to overshoot the target temperature. If the water is already at about the target temperature it only overshoots by a small amount (for my application about a degree), but if the water is being brought up to temperature it can overshoot the target temperature by at least 5-10 degrees. So if you are using this as a sous vide cooker for food which demands accurate temperature control, I would recommend letting the temperature stabilize before adding your food to the water bath. Or use this controller to power a small immersion water heater of the sort used for heating water in a coffee cup (make sure to select one which uses less power than the controller's maximum power output rating). Since an immersion heater heats the water instead of the insert and does not "store" as much heat as a slow cooker ceramic insert, it will not continue to heat the water when it's turned off. This is what commercial sous vide circulators use to heat water, and they circulate the water to prevent a "hot spot" immediately around the heating element. Beyond that, the temperature measured by the controller is accurate to within a degree of what's measured by my kitchen thermometers, the controller is easy to set up, and the instruction sheet is adequate. The on/off temperatures can be adjusted in increments of a tenth of a degree, so even though it's not a PID controller it can still accurately control temperature under the right circumstances. This is a nice tool, but to get good results from it you have to have an understanding of the environment in which it's being used.

### ⭐⭐⭐⭐⭐ It is durable, reasonably priced and does the job.
*by R***S on October 3, 2025*

I purchased this controller back in 2018 to keep some new chicks warm. I have used it several times since then for that purpose. I am setting it up again for the same job and realized I never gave a review. Positive Features: * It allows you to set a low and high threshold allowing one to keep the temperature in the desired range. * It has both a high and low alarm feature, which alerts you if the temperature goes below or exceeds the desired temperature range. * It allows the temperature probe to be calibrated with an offset. I found my probe was accurate enough over the desired range, not requiring an offset be entered. * It can be used with both heat devices, a heat lamp in my case, and cool things. The maximum controlled power is limited (1100 w), so it would not work with a high power refrigeration unit without an additional relay. Not a problem in my case. * For cooling, it allows you to set a compressor on time to prevent rapid cycling which could be bad. * The manual, if one ignores a few typos, is detailed enough to make setting up fairly easy. Just don’t lose the manual. * It does not require wifi, does not phone home, so it does not clog up your internet connection. A very positive feature. Negative Issues: The case is yellowing slightly, which happens with this type plastic. Not a deal stopper. Would I buy it again, yes.

### ⭐⭐⭐⭐⭐ Inexpensive and featureful general purpose temperature controlled AC relay
*by D***S on September 2, 2015*

If you're even considering an AC relay temperature controller, don't even think twice. Just buy the WH1436. You will not regret the purchase. I promise. Review updated 2017/05 to account for model revision (older WH1436 vs newer WH1436A). + Heating and cooling mode (i.e. power supplied if temperature is below or above a threshold) + Waterproof thermocouple included! (this is pretty hard to find on the cheap) + regulates down to 0.1 degree window (high/low bounds for on/off) + F and C units + TONS of advanced options: e.g. temperature alarms and compressor safety timeouts + 1.1kW continuous power rating (up from the 880W in the 2015 model that I bought) +/- mechanical relay click sound when device toggles state (the A model likely now uses a silent solid state relay) - Not a PID controller (more details below on why this could matter) - Upside down power connector (the A revision now uses a NEMA 15-5, which is great, but the plug is still upside down) There are a lot of temperature controllers and sous-vide devices on the market. Some have more or less features than others. Some require other parts, like thermocouples. Heck, at one point I was even considering building my own with a microcontroller, relay, and temp probe (and hours of testing and frustration). The WH1436 is what I've been waiting for and I'm so glad I held out! It's a compact, simple little device and has all the pieces you need for under $30! That's way cheaper than even I could have built one for. Other devices sell for many times this price, up to hundreds of dollars, and aren't nearly as flexible. See the Anova , Dorkfoods , or Johnson for excellent overpriced examples. My target is sous-vide, but the WH1436 could also be used for cooling applications as well. Yes, the instruction manual is a bit overwhelming, but it is detailed and accurate. There are so many features if you really want to fiddle with things, but I found the defaults intelligently chosen and usable. One change I'd suggest is to lower the d parameter from 1.0 to 0.1 (the offset between the target temperature and the relay turning on). If you need help, search youtube for the videos from Bayite and you'll see detailed video instructions on how to use the device. If all else fails, just send the guy an email and he'll get back to you, or just post a question here, as others have done, and you'll see he replies quickly. Note, this paragraph was written based on the old software, the newer software seems to be even easier: set heating vs cooling mode, lower bound, and upper bound. The only legitimate complaint that you could make about this device is that it's not a PID controller. What this means is that it works only on instantaneous temperature measurements. A PID controller uses not just the current temperature, but also tracks the total power delivered (The I in PID), and the rate of change of the temperature (the D in PID), so that it can turn the heat/cooling on and off to keep the temperature exactly at the desired setpoint. This would manifest in behavior like the heat turning off prior to the desired setpoint because the PID controller knows that the temperature will continue to rise to hit the target. It's a more intelligent approach for control (and based on over hundred year old mathematical principles). The WH1436 doesn't have a PID controller, it's just instantaneous on/off based on the setpoint, so it's not as intelligent, but for slow moving temperature settings (like a big crock pot), it can still achieve excellent tight temperature control (my window sits with 1.5C). For the price, it's unbeatable. A PID controller would be a bit more expensive, as the logic is more complicated. What amazer me is that WILLHI did release a "PID" version last year that I bought (WHI1436PID). It wasn't actually a PID controller, but it did have some really neat parameters that would permit very tight temperature control (I got it down to 0.1-0.2C from my target). However, it seems like that model isn't sold anymore. I haven't purchased the updated model (WH1436A) yet, so I can't comment on how smart the newer software is, but if it permits bounding down to 0.1C/F, then that's about as tight as you can reliably get things with a consumer product. It is incredibly versatile because it just regulates an AC socket based on a temperature. I've used it for sous-vide with a crock pot, a rice cooker, and even a portable electric stove with a dutch oven on top. They all work perfectly and deliver fantastic results. At under $30, you can even buy a few of these and set them up to have multiple baths and temperatures going at the same time. Do beef in one, potatoes in another, and vegetables in a third. Things could always be cheaper, but this is a fair price point. These temperature controllers are not particularly expensive pieces of electronics, and I'm glad we finally have an inexpensive option that gets it all right. So long as what you're trying to power is under 1kW, buy this, you'll love it. Combined with an equally affordably priced vacuum sealer and manual slow cooker , you can sous-vide like a pro for under $100.

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-01*