TP-Link Tapo T315 | Smart Temperature & Humidity Monitor is a compact and easy-to-read environmental monitor designed to measure temperature and humidity in real time. Featuring a large 2.7-inch E-Ink display, high-accuracy Swiss-made sensor, instant app notifications and smart-home automation support, the Tapo T315 makes it easy to monitor room conditions at a glance.
The T315 measures temperature with typical accuracy of ±0.3°C / ±0.54°F and humidity with typical accuracy of ±3% RH. It updates measurement data every 2 seconds and supports a temperature measurement range of -20°C to 60°C and humidity range of 0% to 99% RH. A compatible Tapo Smart Hub is required for smart features such as remote monitoring, notifications, automation and data export.
TP-Link Tapo T315 Smart Temperature & Humidity Monitor
The Tapo T315 is designed for users who want both real-time environmental monitoring and a physical display. Unlike a sensor that requires opening an app every time you want to check the temperature or humidity, the T315 continuously displays the current readings on its 2.7-inch E-Ink screen.
The reflective E-Ink display is designed to be easy to read from different viewing angles and remains visible in bright environments without the glare associated with conventional displays. It also shows temperature, humidity, comfort level, battery condition and wireless signal information.
2.7-Inch E-Ink Display
The large 2.7-inch E-Ink display provides a clear, paper-like viewing experience with low power consumption. Large numbers make the temperature and humidity readings easy to see from a distance.
- 2.7-inch E-Ink display
- Low-power reflective screen
- Wide viewing angle
- Glare-free viewing
- Temperature and humidity display
- Comfort-level indication
- Battery status indication
- Wireless signal indication
The display can show temperature in either Celsius or Fahrenheit. A single press of the side button switches the temperature unit, while a double press changes the display position of temperature and humidity.
High-Accuracy Temperature & Humidity Sensor
The Tapo T315 uses a Swiss-made sensor for accurate environmental measurements. Temperature and humidity readings are obtained and updated every 2 seconds, allowing users to monitor changes quickly.
| Measurement |
Specification |
| Temperature Accuracy |
±0.3°C / ±0.54°F |
| Humidity Accuracy |
±3% RH |
| Temperature Range |
-20°C to 60°C / -4°F to 140°F |
| Humidity Range |
0% to 99% RH |
| Data Refresh Rate |
Every 2 seconds |
Important: although the sensor can measure temperatures from -20°C to 60°C, the E-Ink display itself displays temperature from 0°C to 50°C. Readings outside the display range can be checked through the Tapo app.
Instant Temperature & Humidity Alerts
When connected to a compatible Tapo Hub, the Tapo T315 can send notifications through the Tapo app when temperature or humidity moves outside a user-defined range.
This makes the monitor useful for situations where environmental conditions need attention, such as excessive humidity, unusually high temperature or unusually low temperature.
- Temperature threshold alerts
- Humidity threshold alerts
- Instant app notifications
- Remote monitoring through Tapo app
- Customizable comfort ranges
Smart Home Automation
The Tapo T315 can act as a trigger for compatible Tapo smart devices. This allows temperature and humidity measurements to be used to automatically control connected appliances.
For example, a compatible Tapo smart plug can turn on a heater when the temperature drops below a selected level or activate a fan or humidifier when configured environmental conditions are reached.
- Automatic heater control
- Fan automation
- Humidifier automation
- Smart plug control
- Temperature-based automation
- Humidity-based automation
Up to 2 Years of Data Storage
The Tapo ecosystem can record temperature and humidity information and provide visual graphs for reviewing environmental changes over time. TP-Link provides up to 2 years of cloud data logging and storage, with recorded information available for export as a CSV file.
Historical data can help users understand temperature and humidity patterns and identify unusual changes over longer periods.
Up to 2 Years Battery Life
The Tapo T315 is powered by two replaceable AAA/LR03 batteries. TP-Link specifies battery life of up to 2 years based on laboratory results under normal conditions. Actual battery life can vary depending on operating conditions and environment.
Note: the 2-year figure refers to battery life, not warranty period.
Flexible Installation
The Tapo T315 can be placed on a desk, table or shelf, or mounted on a wall using the included adhesive. It can also be positioned on a suitable metallic surface.
- Desktop placement
- Table or shelf placement
- Wall mounting using included 3M adhesive
- Flexible placement according to monitoring requirements
Tapo Hub Required
A compatible Tapo Smart Hub is required to enable the T315’s smart functions. The monitor communicates through the specified Sub-1G wireless band rather than connecting directly to a conventional Wi-Fi router.
TP-Link India specifies 868 / 922 MHz wireless operation, with the applicable frequency depending on the regional version. The Tapo device and hub must support the same Sub-1G band.
Suitable Applications
The Tapo T315 can be used in a wide range of indoor environments where temperature and humidity monitoring is useful.
- Bedrooms
- Living rooms
- Baby rooms
- Home offices
- Wine storage areas
- Musical instrument storage
- Grow rooms
- Storage areas
- Small offices
- Smart-home environments
Compact Monitor Design
The Tapo T315 measures approximately 62 × 62 × 24.5 mm, making it compact enough for desks, shelves and other indoor locations. Its E-Ink screen provides a clear always-visible display without requiring the user to open the mobile application for basic readings.
TP-Link Tapo T315 Specifications
| Specification |
Details |
| Model |
TP-Link Tapo T315 |
| Product Type |
Smart Temperature & Humidity Monitor |
| Display |
2.7-inch E-Ink |
| Temperature Accuracy |
±0.3°C / ±0.54°F |
| Humidity Accuracy |
±3% RH |
| Temperature Measurement Range |
-20°C to 60°C / -4°F to 140°F |
| Display Temperature Range |
0°C to 50°C / 32°F to 122°F |
| Humidity Range |
0% to 99% RH |
| Data Refresh Rate |
Every 2 seconds |
| Wireless |
868 / 922 MHz Sub-1G |
| Hub Required |
Yes |
| Battery |
2 × AAA/LR03 |
| Battery Life |
Up to 2 years under specified conditions |
| Data Storage |
Up to 2 years |
| Data Export |
CSV |
| Mounting |
Desktop / Wall Mount |
| Third-Party Platforms |
Amazon Alexa, Google Assistant |
| Dimensions |
62 × 62 × 24.5 mm |
| Power Requirement |
3.0V DC, 2 × AAA/LR03 |
Frequently Asked Questions
What is TP-Link Tapo T315?
TP-Link Tapo T315 is a smart temperature and humidity monitor with a 2.7-inch E-Ink display, designed for real-time environmental monitoring and Tapo smart-home automation.
What is the accuracy of Tapo T315?
The T315 provides typical temperature accuracy of ±0.3°C and humidity accuracy of ±3% RH.
Does Tapo T315 have a display?
Yes. The Tapo T315 features a 2.7-inch E-Ink display that shows temperature, humidity and other status information.
What batteries does Tapo T315 use?
The Tapo T315 uses two replaceable AAA/LR03 batteries.
How long does the Tapo T315 battery last?
TP-Link specifies up to 2 years of battery life under laboratory conditions. Actual battery life can vary with operating conditions and environment.
Is the 2-year period the warranty?
No. The 2-year figure refers to the expected battery life under specified conditions, not the warranty period.
Does Tapo T315 require a hub?
Yes. A compatible Tapo Smart Hub is required for smart features such as remote monitoring, automation, notifications and data export.
Can Tapo T315 send temperature alerts?
Yes. When connected to a compatible Tapo Hub, the T315 can send app notifications when temperature or humidity falls outside configured ranges.
Can Tapo T315 control a heater or fan?
Yes. Temperature and humidity readings can be used as triggers for compatible Tapo smart devices and automation scenes.
How much historical data can Tapo T315 store?
The Tapo ecosystem supports up to 2 years of temperature and humidity data, with the recorded information available for CSV export.
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