FrSky TEMS Temperature Sensor – AES Telemetry System 04100427

FrSky TEMS Temperature Sensor – AES Telemetry Temperature Monitoring

The FrSky TEMS Temperature Sensor is a compact telemetry temperature sensor used to monitor heat-sensitive components in RC aircraft. It is commonly used with FrSky telemetry systems and the FrSky Advanced Engine Suite II (AES II) to track operating temperatures in real time from your transmitter.

Key Features

• Telemetry temperature sensor for FrSky-compatible systems
• Works with FrSky Advanced Engine Suite / AES II setups
• Useful for monitoring gas engine cylinder heads, mufflers, ESCs, motors, BECs, voltage regulators, batteries, tail pipes, and ambient air
• Wide measurement range from -20°C to 250°C (-4°F to 482°F)
• 1°C / 1°F accuracy
• Compact and lightweight sensor for easy installation
• Helps provide real-time temperature visibility during operation

Common Monitoring Applications

• Gas engines: Cylinder head, muffler, exhaust area, or engine bay temperature
• Electric setups: Motor, ESC, battery, BEC, or voltage regulator temperature
• Scale aircraft: Useful for monitoring enclosed areas with limited airflow
• Telemetry systems: Adds temperature data to compatible FrSky transmitter displays

Specifications

• Product: FrSky Temperature Sensor TEMS-01
• SKU: 04100427
• Measurement Range: -20°C to 250°C / -4°F to 482°F
• Accuracy: 1°C / 1°F
• Compatibility: FrSky telemetry systems / AES II temperature sensor inputs

How It Works

The TEMS sensor is placed near the component or area you want to monitor. When connected through a compatible FrSky telemetry system or AES II module, the sensor sends temperature data to your transmitter so you can monitor heat buildup during operation.

The AES II supports multiple temperature inputs, including TEMS-type temperature sensor ports, making this sensor a useful add-on for gas-powered aircraft telemetry setups.

What’s Included

• 1 × FrSky Temperature Sensor TEMS-01

What You’ll Need

• Compatible FrSky telemetry receiver or FrSky AES / AES II system
• FrSky transmitter capable of displaying telemetry data
• Proper mounting location near the component being monitored

Best Use Applications

• Gas-powered RC airplanes
• Large scale aircraft with enclosed cowls
• Electric aircraft with high-current ESC or motor setups
• Telemetry-based engine monitoring systems
• FrSky AES II engine monitoring installations

Why Temperature Monitoring Matters

Excessive heat can damage engines, ESCs, batteries, BECs, and other onboard electronics. Adding temperature telemetry gives pilots better visibility into how the aircraft is operating, especially in large gas models, enclosed cowls, or high-current electric setups.

Modeler’s Tip

For AES II installations, use TEMS sensors to monitor key heat areas such as the engine bay, muffler area, voltage regulator, or electronics compartment. This helps identify airflow or overheating issues before they become serious.