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Apollo Automation

TEMP-1 Temperature Sensor For Home Assistant

$24.99
$24.99
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We want to keep our community informed. We have discovered an issue with a resistor that is affecting the maximum temperature of the food probe on the TEMP 1. It will still measure up to ~190 F but can't measure higher. By adjusting a resistor we can get a higher temperature range

The good news is that we have already identified a fix and are actively testing to ensure everything works as expected. We will provide updates as soon as we have more details.

If you are experiencing any issues or have questions, please reach out to us at support@apolloautomation.com or join our Discord. We are here to help and appreciate your support as we work through this.


For the most accurate temperature readings, it is designed to be used with one of the optional probes. The onboard AHT20-F sensor may be affected by heat from the ESP, but using sleep settings helps ensure accurate temperature and humidity measurements.
 
The TEMP-1 Temperature Sensor is designed for seamless integration with ESPHome and Home Assistant via WiFi.

It is available in two versions:

• A USB-C powered model for continuous operation.

• A battery-powered model for flexible placement, using a rechargeable RC-CR123A or 16340 battery (not included). This version enables cable-free operation, making it ideal for locations without constant power.

The TEMP-1 delivers accurate and reliable temperature readings with multiple probe options. Built-in WiFi and Bluetooth connectivity ensure easy smart home integration and automation. An onboard RGB LED and buzzer provide real-time alerts, while the AHT20-F sensor measures ambient air temperature alongside probe readings.

A 3.5mm jack supports two optional temperature probes or a food safe probe (sold separately), allowing customization for specific monitoring needs. Its compact and durable design ensures seamless integration into any environment while maintaining high performance. 2 probes are flat cable submersible probes and 1 probe is a food safe stainless steel non dishwasher safe.

As part of Apollo Automation’s commitment to open-source innovation, the TEMP-1 is built for maximum flexibility and reliability. Whether you choose the USB-C or battery-powered model, it offers a powerful combination of functionality, privacy, and precision for all your temperature monitoring needs.

GitHub Printables

Version:

Food Safety Monitoring

  • Fridge/Freezer Monitoring: Ensure your fridge or freezer maintains safe temperatures for food storage. The flat cable probe can fit through seals without interfering with the door closure.
  • Cooking and Baking: Use the food-safe stainless steel probe to monitor grilling, roasting, or baking temperatures in real-time.

Aquatic Environments

  • Fish Tank Monitoring: Keep a close eye on aquarium water temperatures with the waterproof probe to maintain a stable and healthy environment for aquatic life.
  • Pool and Hot Tub Monitoring: Track water temperatures in pools or hot tubs (with waterproof housing) for safety and comfort.

Home and Building Automation

  • Attic Fan Control: Automate attic fans to turn on when temperatures rise above a set threshold, improving ventilation and energy efficiency.
  • HVAC System Monitoring: Monitor ambient temperature to optimize your heating, ventilation, and air conditioning system's performance.

Outdoor and Remote Applications

  • Greenhouse Temperature Management: Maintain the perfect growing environment for plants in a greenhouse, even in remote areas, using the battery-powered version.
  • Remote Monitoring: Monitor temperature in locations without constant power, such as sheds, barns, or outdoor storage units.

General Environmental Monitoring

  • Room Temperature Tracking: Use the onboard AHT sensor to monitor indoor environments for comfort and energy efficiency.
  • Cold Storage Units: Monitor temperature in commercial or residential cold storage units to ensure proper operation.

Safety Alerts

  • Overheat Detection: Use the buzzer or Home Assistant integration to trigger alerts when temperatures exceed safe levels in critical areas like server rooms or electronics enclosures.
  • Assembled sensor with case
  • Apollo sticker

We hope to build a community on our Discord and continue delivering products the community wants. Our team will be there to help answer any questions, suggestions, or problems you might have.

Join our Discord.

Please see our Apollo Wiki for more information.

Product Details

ESP32-Based Platform: Fully compatible with ESPHome and Home Assistant, ensuring local, private, and open-source operation.

Power Options: Available in two versions:
- Non-Battery Version: Ideal for continuous power setups.
- Battery Version: Uses a rechargeable CR123A or 16340 battery (not included), providing flexibility for installations without constant power access.


Connectivity: WiFi and Bluetooth for seamless integration and automation in your smart home.

Sensor Interface: Equipped with a 3.5mm jack for connecting optional external temperature probes (sold separately). Compatible probe options include:
- 1.5m (~5ft) waterproof flat cable (DS18B20 sensor). Max 85°C 185°F
- 20cm (~8in) waterproof flat cable (DS18B20 sensor). Max 85°C 185°F
- 1m (~3ft) stainless steel food-safe probe (NTC sensor). Max 204°C 400°F Not dishwasher safe

Onboard Sensors: Includes an AHT20-F sensor for temperature and humidity monitoring.

Alerts: Features an RGB LED and buzzer for customizable real-time notifications.

Battery Life: The battery-powered version offers up to 6 months of battery life with optimized sleep settings.

Additional Notes:

Accuracy Recommendations: To ensure the onboard AHT sensor provides accurate temperature and humidity readings, the device can utilize sleep functionality to reduce heat buildup from the ESP chip.

Customization: As part of Apollo Automation’s commitment to open-source innovation, the TEMP-1 allows users to modify and extend its functionality to suit specific needs.

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Customer Reviews

Based on 11 reviews
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R
RJ M.
Easy to set up and use

This was very easy to set up and adopt into HA to get readings there. The magnet mount works really well on our chest freezer, then the short temperature sensor worked great for getting inside the freezer.

The only (minor) issue I've had is that the ESPHome add-on hasn't picked it up for reasons unknown, but in theory I shouldn't need that, and it's not required for day-to-day operation.

J
John Z.
Useless as a food probe

A food probe that cannot go beyond 185F is baffling. I don't know what sort of testing on this device went on before shipment, but this device is functionally useless. The battery drains to 0 in 3 days, even when it disconnects for 12 hrs a day

Hi John,

We appreciate your feedback and understand your frustration. We want to keep our community informed, so we have already sent out an announcement about the food probe temperature limitation. The issue was caused by a resistor affecting the maximum temperature range, capping it at ~190°F. We have already implemented a fix and will begin shipping updated units immediately. If you would like to exchange yours, just let us know, and we will get it processed for you.

The TEMP-1 was in beta testing for months, and the food probe was added based on user feedback. Regarding battery life, that is not normal behavior. Are you using a rechargeable RC-CR123A or 16340 battery with at least 3.7V? The sensor requires a rechargeable battery at this voltage to function properly.

We appreciate your support and are happy to help. We will make it right!

Best,
Justin Bunton
Co-Founder | Community Lead
Apollo Automation

S
Scott R.
Love it!

I love the Apollo Temperature Sensor. I’ve been using it to monitor the temperature of food I have cooked in the oven. I’m able to easily set up Home Assistant automations that flash lights when certain temperatures are met. It’s worked out really well and has upped my cooking game. I can’t wait for Thanksgiving to roll around agin. This will really help with my turkey preparation.

M
Mark T.
Works great! Very satisfied.

As soon as I got my sensors, I added them to Home Assistant. They were very easy to add and the process went smooth. I can now monitor the temperature in my fridge and freezer to alert if the temperature becomes too warm. Thanks Apollo!

B
B.B.

I love how easy it is to setup with Home Assistant. having an option to purchase a temp or food probe is great.

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