You may install the Kasa Smart Thermostatic Radiator Valve by following the steps listed in the following instruction.
How to Install Kasa Smart Thermostatic Radiator Valve
No, KE100 needs to work with the KH100 hub so that you can manage/control it via KASA APP.
Yes. However, the KE100 currently only supports working with Tapo T110 (additional purchase required).
With the Open Window Detection feature, it will send you notifications, automatically turn off the heating, and activate Frost Protection when an open window/door is detected. Once the window/door is closed, it will resume heating automatically.
Please note that for the Open Window Detection feature to work, the sensor must be online and bound to the same hub KH100 as the KE100 in KASA APP.
![](\"https://static.tp-link.com/upload/faq/image_20231031033035o.png\")
![](\"https://static.tp-link.com/upload/faq/image_20231031033040g.png\")
![](\"https://static.tp-link.com/upload/faq/image_20231031033050l.png\")
KE100 connects to front-end Hub KH100 through a Sub-G wireless signal. KH100 can only connect to the router through 2.4GHz WLAN.
1× RA adapter 1× RAV adapter 1× RAVL adapter
KE100 fits on most radiator valve body thread (M30x1.5) and the three adapters(RA, RAV & RAVL) included allow more compatibility.
Kasa Smart Thermostatic Radiator Valve is only compatible with the thermostatic valve.
You can refer to the following FAQ to get detailed instructions:
How does KE100’s Smart Control work?
KE100 supports three Valve Control modes: Standard Mode, Powerful Mode, and Gentle Mode. You can choose a suitable mode based on your valve condition and usage scenario.
KE100 runs in Standard Mode by default.
If your radiator valve is aged, stiff, or has high actuation resistance, switch to Powerful Mode, which provides extra torque to precisely control the valve and improve accuracy, but it will increase power consumption and operational noise.
If you prefer a quieter home environment, select Gentle Mode, which lowers switching frequency to deliver low-noise performance and extend battery life.
To change the Valve Control mode, open the Kasa app and go to your KE100’s Device Settings > Valve Control.
![\"Valve](\"https://static.tp-link.com/upload/faq/image-20260612111902-4_20260612031903t.png\")
KE100 supports Sub-G protocol which needs to work with KASA hub KH100. It doesn't support Zigbee or Z-Wave protocol.
With three walls in between, the KE100 and hub can be separated by a maximum of around 45 meters. Please be aware that the real distance is influenced by the use environment. Wireless interference at home, the thickness of the wall, the location of the hub, and other factors may affect the real distance that the KE100 can receive the signal from the hub.
Yes, you can follow up on the below instructions to set up the Kasa Smart Thermostatic Radiator Valve with Alexa and Google Assistant.
How to make my TP-Link Kasa Device work with Amazon Alexa
How to connect your TP-Link Kasa devices to Google Home
No, KE100 doesn’t support Home Assistant.
yes, each Hub can connect and manage up to 32 radiators.
3.0V DC (2 × AA/LR6 batteries included)
Notes:
1. Do NOT use rechargeable batteries or 1.2V AA.
2. AA/LR6 Alkaline batteries are recommended.
Generally, the battery life of the KE100 can be over 1 year. But the frequency of use and the environment in which it is operated will both affect how long it will last.
KE100 can be controlled via KASA APP currently. You can control the TRV to adjust the temperature through the KASA APP, and you can also query the temperature records for a period of time.
The KE100 measures ambient room temperature but is often installed near heat sources like radiators. As a result, its readings may be higher than the actual room temperature.
To make the displayed temperature closer to the actual ambient temperature, use the “Temperature Offset” feature for calibration:
Displayed Temperature = Sensed Temperature + Offset
For instance, if the sensor consistently reads 2°C higher, setting an offset of -2 will correct the display.
Notes:
1. Displayed Temperature refers to the current room temperature shown on the app.
2. Sensed Temperature refers to the temperature detected by the KE100 sensor.
![](\"https://static.tp-link.com/upload/faq/image-20230303154449-1_20230303074723d.png\")
![](\"https://static.tp-link.com/upload/faq/image-20230303154449-2_20230303074723z.png\")
![](\"https://static.tp-link.com/upload/faq/image-20230303154449-3_20230303074722l.png\")
or ![](\"https://static.tp-link.com/upload/faq/image-20230303154449-4_20230303074722n.png\")
? You can refer to the following FAQ to get detailed instructions:
Kasa Smart Thermostatic Radiator Valve KE100 Display Shows E1/E2 Error code
![](\"https://static.tp-link.com/upload/faq/image-20230303154449-5_20230303074722l.png\")
or ![](\"https://static.tp-link.com/upload/faq/image-20230303154449-6_20230303074722a.png\")
, please refer to Q12 and Q13.![](\"https://static.tp-link.com/upload/faq/image-20230303154449-7_20230303074722h.png\")
, then the battery power is running low and the valve can’t work properly. Please replace the batteries.
Yes. The KE100 has a built-in temperature sensor, but you can also add a Tapo temperature sensor to it for temperature correction. A separate temperature sensor can be placed anywhere in the room to measure the ambient temperature, and Kasa Smart Valve KE100 can be set to regulate the temperature according to the information provided by the Tapo temperature sensor, ensuring that the area of your concern is always at the right temperature - not too hot and not too cold.
KE100 currently supports Tapo T310 and Tapo T315 temperature sensors. Temperature sensors need to be purchased separately.
You can follow the instructions below to add external temperature sensors for your KE100.
Note: Only the sensors that are online and bound to the same hub as your KE100 can be used as detection sensors.
Step 1: Directly connect your Tapo sensor to your Kasa smart hub KH100 in the Kasa Smart app. No need to get one extra Tapo hub.
![](\"https://static.tp-link.com/upload/faq/image_20231031033159c.png\")
![](\"https://static.tp-link.com/upload/faq/image_20231031033205s.png\")
![](\"https://static.tp-link.com/upload/faq/image_20231031033243f.png\")
Step 2: Go to the Device Settings page of KE100. Set temperature correction based on the designated sensor.
![](\"https://static.tp-link.com/upload/faq/image_20231031033229i.png\")
![](\"https://static.tp-link.com/upload/faq/image_20231031033234v.png\")
Yes. KE100 can help you save energy without sacrificing comfort by setting different temperatures for different rooms according to your heating schedule, and automatically pausing heating when an open window is detected or when you leave home.
Up to 10 KE100 devices can be added in one Group.
Note： The KE100 and other devices such as switches, bulbs, etc., cannot be added to the same group, because functions such as group temperature setting, and group heating scheduling are specifically designed for the TRV KE100 and heating groups.
Yes, you can set Smart Actions to control your KE100 with the free Geofencing feature.
You can also choose an Effective Radius from 100m(328 ft) to 2000m(1.24 miles).
The LED display on the KE100 provides visual feedback for device operations and status. When adjusting settings in the Kasa app (e.g., temperature, antifreeze mode, child lock) or manually turning the knob, the LED will light up, blink three times, and then turn off.
Note: During calibration, the LED remains on until the process is complete. If calibration is successful, the specific temperature value is displayed; if it fails, an error code (E1/E2) appears. After displaying the temperature or error code, the LED blinks three times and turns off.
Below is an image showing the location of the LEDs on the unit.
![\"Illustration](\"https://static.tp-link.com/upload/faq/image-20250325160111-1_20250325080110k.png\")
For detailed reference, please see the image below. Note that the temperature indicator lights have consistent meanings across different hardware versions, while the meanings of the lights for other icons may vary.
![\"Meaning](\"https://static.tp-link.com/upload/faq/image-20250325160111-2_20250325080110z.png\")
For KE100 V1.0:
![\"Explanation](\"https://static.tp-link.com/upload/faq/image-20250325160111-3_20250325080110h.png\")
For KE100 V1.2:
![\"Explanation](\"https://static.tp-link.com/upload/faq/image-20250325160111-4_20250325080110k.png\")
Yes, you can rotate the LED display 180° by navigating to the Kasa app > KE100 > Device Settings > Display Settings.
The Summer Mode of the Kasa Smart Thermostat is designed to conserve energy during warmer months. When activated, your room thermostat and connected Thermostatic Radiator Valves (TRVs) enter a power-saving state, disabling temperature monitoring and adjustments to prevent accidental heating.
Within Summer Mode, you have three specific settings:
Fully Closed:
Function: TRVs are fully closed, stopping water flow to the radiator.
Use Cases: Ideal for rooms not needing heat, such as during summer, in unoccupied spaces, or for system maintenance/draining.
Note: While primarily for summer, remember that leaving valves fully closed in unheated areas during freezing temperatures can risk burst pipes.
Fully Open:
Function: TRVs are fully open, allowing maximum hot water flow.
Use Cases: Primarily for system tasks. Quickly heating up a cold room, bleeding air from radiators when refilling the heating system, or checking if hot water is circulating properly.
Anti-Blocking Function:
Function: Even when heating is off, TRVs will be activated once a week to prevent them from seizing or sticking due to prolonged inactivity.
Benefit: This ensures the valves remain functional and reliable for when heating is required again. It's highly recommended to keep this feature enabled for long-term valve health.
When turned off, the thermostat will enter frost protection mode, which maintains a slight water flow at minimum temperature (typically around 5°C) to prevent pipes from freezing.
To close the valve completely, switch to Summer Mode in the thermostat's settings and then select the Fully Closed option.
For the sake of power saving, the Camera is usually in a sleep state (low power consumption). The camera can be woken up when doing some operations on the APP like watching the camera’s live view. And it can also be woken up by the PIR sensor.
PIR sensor means passive infrared sensor. The term ‘passive’ refers to the fact that PIR devices do not radiate energy by themselves. They work by detecting infrared radiation emitted by or reflected from objects.
There exist twin sensors in the camera, when a person or animal moves through the camera’s detecting area, the twin sensors can detect the infrared radiation changes thus waking up the camera. Frequent heat source movements can cause the Camera to be woken up frequently. So it’s important that the PIR sensor may be affected by the environment. And due to the mechanism of the sensors, they may not detect objects moving directly towards the camera to some extent.
Note: Activity Zones or Privacy Zones won’t affect the PIR sensor, thus these settings can’t reduce the wake-up times.
Generally, Wake-up Sensitivity refers to the camera's sensitivity to PIR sensor triggering. Higher sensitivity results in longer detection distance, easier wake-up, and more recordings, which will reduce battery life.
You can adjust the sensitivity based on your needs and specific scenarios. In Camera Settings > Detection > Wake-up Sensitivity.
For more suggestions to extend the battery life, please refer to the FAQ below.
How do I extend the battery life of my Tapo Camera/Doorbell?
" } }, { "@type": "Question", "name": "How to extend the battery life of Tapo Camera/Doorbell", "acceptedAnswer": { "@type": "Answer", "text": "The actual battery life may vary depending on the camera’s configuration settings, usage scenario, and environmental factors. Some customers may feel the camera’s battery life does not last as expected, and here we will introduce how to extend the battery life of cameras.
For the sake of power saving, the camera is usually in a sleep state (low power consumption), however, if the camera is woken up frequently and maintains the ON state for a long time, the camera consumes power quickly.
Click this link to know how the battery-powered camera wakes up.
The camera is installed in a location where the environment changes significantly. For example, the camera is used to monitor the streets or roads that have heat sources to wake up the camera frequently, and it’s easy for the camera to detect events, and then the ON state of the camera may last for a long time. This usage scenario will cost the battery power quickly.
Step1. Open the Tapo app, tap your battery-powered camera model card to go to Live View > tap the icon at the top right corner > Device Settings > Detection> Wake-up Sensitivity to adjust the sensitivity according to your needs.
Higher sensitivity results in easier wake-up and more recordings, which will reduce battery life.
![\"The](\"https://static.tp-link.com/upload/faq/image-20251202142045-20_20251202062046e.png\")
![\"Wake-up](\"https://static.tp-link.com/upload/faq/image-20251202142045-21_20251202062046f.png\")
Step 2. Adjust the installation position of your camera/doorbell so it will not be woken up too often. The following instructions will help you when installing your camera/doorbell:
![\"Three](\"https://static.tp-link.com/upload/faq/image-20251202142045-22_20251202062046f.png\")
![\"When](\"https://static.tp-link.com/upload/faq/image-20251202142045-23_20251202062045n.png\")
■ Tapo C410 Series: 10° ~ 15°
![\"The](\"https://static.tp-link.com/upload/faq/image-20251202142045-24_20251202062046f.png\")
■ Tapo C420 Series: 20° ~ 25°
![\"The](\"https://static.tp-link.com/upload/faq/image-20251202142045-25_20251202062045z.png\")
■ Tapo C425 Series: 20°
![\"The](\"https://static.tp-link.com/upload/faq/image-20251202142045-26_20251202062046t.png\")
Step 3. You can also adjust other settings to save your battery.
Step 4. Tapo battery-powered cameras or doorbells can operate properly within the temperature of -20℃~45℃(-4°F ~113 °F ). The battery life may get shorter if the temperature is too low.
A1: The number of the detection video clips of the camera does not reflect the number of times the camera is woken up.
You can refer to the link to know how the camera wakes up. There can be many heat sources that wake up the camera, such as sunlight, people, objects, etc., but the camera may not necessarily record clips due to the impact of camera detection settings and other configurations after it wakes up.
A2: Yes. Even though events judged as invalid are filtered out by AI to avoid unnecessary recordings and alerts, the doorbell still performs the detection process before the AI makes its decision. This detection activity consumes energy, which can increase overall battery usage. If you notice a large number of “Filtered By AI” events, it is recommended to follow the above suggestion to adjust the installation position or use a wedge to change the viewing angle. A common reason for excessive filtered events is that the camera lens faces areas with frequent dynamic changes, such as vegetation that moves easily in the wind or busy streets with constant activity.
Get to know more details of each function and configuration please go to Download Center to download the manual of your product.
" } }, { "@type": "Question", "name": "How does Kasa Thermostat’s Smart Control work?", "acceptedAnswer": { "@type": "Answer", "text": "By setting up your own set of rules, turn on/off your radiator valve automatically to control the heating temperature according to your daily routine. For instance, you can set your smart thermostatic radiator valve to turn on and heat up to 25℃ between 7:00 am to 8:30 pm every weekday and 10℃ for weekends. The following is going to show you how to set it.
Let’s start off with launching your Kasa Smart app.
1. Tap your smart thermostatic radiator on the Home page, and then tap ![](\"https://static.tp-link.com/upload/faq/image-20230301180918-20_20230301101148f.png\")
to set Smart Control rules.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-21_20230301101149h.png\")
2. Turn on Smart Control and tap Schedule Days.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-22_20230301101148q.png\")
3. You can also choose a pattern for your Smart Control. Here, choose Mon – Fri, Sat, Sun.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-23_20230301101148q.png\")
4. For the first set of schedule rules from Monday to Friday, tap Edit Rules and then Add RULE to add an effective time for your Smart Control.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-24_20230301101148b.png\")
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-25_20230301101149n.jpeg\")
5. To adjust the time, drag the endpoints of the whole segment or simply set the time at the bottom of the page.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-26_20230301101149p.jpeg\")
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-27_20230301101149u.png\")
6. Set the heating temperature at the bottom of the page.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-28_20230301101149f.png\")
7. Tap Save and your smart thermostatic radiator valve will heat to 25℃ from 7:00 am to 8:30 pm on weekdays.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-29_20230301101149v.png\")
8. For the second set of rules, swipe the page or tap![](\"https://static.tp-link.com/upload/faq/image-20230301180918-30_20230301101148k.jpeg\")
to switch to the schedule for Saturday and repeat steps 4 to 7 to set schedule rules.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-31_20230301101149i.jpeg\")
9. Repeat steps 4 to 8 to set schedule rules for Sunday.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-32_20230301101149o.png\")
10. If you want to apply the just added rules to another day, tap Sync to...
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-33_20230301101149e.jpeg\")
11. Choose the day you like and tap SYNC, then the schedule rules can be synced to your chosen days.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-34_20230301101148m.png\")
12. If you want to delete already set rules, select the period of time on the wheel and tap Delete at the bottom of the page.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-35_20230301101149c.jpeg\")
13. If you want your room temperature to reach your set temperature at the start of your schedule block, enable Early Start. Then the thermostat radiator valve will start heating before your set time to the desired temperature. Tap![](\"https://static.tp-link.com/upload/faq/image-20230301180918-36_20230301101149e.png\")
and turn it on.
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-37_20230301101149k.jpeg\")
![](\"https://static.tp-link.com/upload/faq/image-20230301180918-38_20230301101149t.png\")
To learn more about each function and configuration, please visit the Download Center to download the manual of your product.
" } }, { "@type": "Question", "name": "How to improve the connection stability of my Hub and its sub-devices", "acceptedAnswer": { "@type": "Answer", "text": "This guide offers technical solutions to address connectivity issues between the Tapo Hub and its sub-devices, such as Sub-G cameras, doorbells, and Sensors. Common performance bottlenecks, such as latency, stuttering, or intermittent disconnections, can be effectively resolved by optimizing device placement, refining Wi-Fi configurations, or using Ethernet for a dedicated, stable link. Implementing these strategic adjustments will ensure superior signal integrity and an enhanced user experience across your smart home ecosystem.
Download the Tapo App by visiting the Google Play Store, the App Store, or by scanning the QR code.
![\"Scan](\"https://static.tp-link.com/upload/faq/image-20260224162905-1_20260224082842a.png\")
First, please check the signal between the sub-devices and the hub. You can find the signal strength in each sub-device’s Device Settings > Device Info.
Please check the signal strength and follow the guide below to get targeted measures to solve the problem.
Tapo Hub typically connects to the router via Wi-Fi or via an Ethernet cable. When connected to the router via Wi-Fi, the Wi-Fi signal will affect the performance of the hub and sub-devices. Here’s a guide to help you improve signal strength between the hub and the router.
Tip 1: Select an appropriate installation position for the hub
![\"Place](\"https://static.tp-link.com/upload/faq/image-20260224162905-2_20260224082842p.png\")
Tip 2: Optimize wireless channel and bandwidth for Sub-G Camera/Doorbell
The Hub uses Wi-Fi to transmit data. Optimizing its channel settings helps reduce wireless interference. The hub’s Wi-Fi channel follows your home router’s channel, so please optimize the 2.4GHz Wi-Fi Settings on your home router. Generally, you can access the router's settings panel, log in, navigate to the 2.4GHz wireless frequency band, choose an optimal channel (1, 6, or 11), and set the channel width to 20MHz to reduce interference.
Tip 3: Use an Ethernet cable to connect router
While a wireless connection between the hub and router might be interfered with by other devices, a wired connection is the best choice for stable and high-speed network connectivity.
Tapo Hub's sub-devices need a good signal to transmit data to the Hub. Signal quality depends on the distance between the sub-devices and the Hub, as well as on any obstacles between them. You may refer to the following tips to get an optimal installation position for the sub-devices:
Get to know more details of each function and configuration please go to Download Center to download the manual of your product.
" } } ] }