SKU: 8043206457
indoor plant sensor

indoor plant sensor PLT-1 Ultimate Plant Sensor

Sale price$24.57 Regular price$27.30
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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5

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Description

indoor plant sensor PLT-1 Ultimate Plant SensorThe Apollo Automation PLT 1 is an ESP32 C3 based indoor plant multisensor that measures soil moisture (capacitive), air temperature, humidity, LUX, and UV, which can be used with Home Assistant via ESPHome! It also features an onboard piezo buzzer and addressable RGB LED. Soil temperature can be measured using the optional temperature probe add on. The sensor comes in a battery or non battery version, with the non battery (USB C powered, 5V 1A)

The Apollo Automation PLT-1 is an ESP32-C3-based  indoor plant multisensor that measures soil moisture (capacitive), air temperature, humidity, LUX, and UV, which can be used with Home Assistant via ESPHome!

It also features an onboard piezo buzzer and addressable RGB LED. Soil temperature can be measured using the optional temperature probe add-on. The sensor comes in a battery or non-battery version, with the non-battery (USB-C powered, 5V 1A) version being significantly smaller - select an option before adding to your cart.

The PLT-1 uses a capacitive soil moisture sensor, which offers much better accuracy and durability compared to resistive sensors. Additionally, the ground contact portion is protected with a conformal coating, ensuring longevity and resistance to environmental factors.

Both versions of the PLT-1 come with a 3D printed case.

Note: The PLT-1B (battery version) does not include a battery or charger. You will need to source their own rechargeable 18650 batteries for the battery version, and a charger. Battery life is estimated at 6 months based on a quality rechargeable 18650 and the default sleep / wake settings.

Features

  • ESP32-C3-Mini based: ESPHome compatible, allowing plant monitoring in HomeAssistant
  • Capacitive Soil Moisture Sensor with conformal coating: Accurate and durable, perfect for monitoring plant hydration
  • AHT20-F Air Temperature & Humidity Sensor: Dust-protected for reliable air condition tracking
  • LTR390 UV & LUX Sensor: Measures light and UV exposure, ensuring optimal lighting for plants
  • RGB LED: Customizable for notifications (e.g., watering alerts, light levels)
  • Piezo Buzzer: Provides audible alerts for important plant care events
  • Battery and Non-Battery Versions: Flexible power options to suit different setups and needs
  • Home Assistant Integration: Easily automate and monitor plant health through your smart home system
  • Can be used with an optional DS18B20 Waterproof Soil Temperature Probe: Monitors soil temperature with precision

    Use Cases

    • Automated Watering: With its capacitive soil moisture sensor, you can set up automations to water plants only when moisture levels drop below a certain threshold.
    • Optimising Sunlight Exposure: Use the LUX and UV sensors to monitor light levels, ensuring your plants get the right amount of sunlight. Automate window shades or grow lights based on current light conditions.
    • Temperature & Humidity Management: Track air temperature and humidity with the AHT20-F sensor, adjusting indoor climate controls (like fans, heaters, or humidifiers) to maintain ideal growing conditions.
    • Soil Temperature Monitoring: Use the optional waterproof soil temperature probe to monitor and control soil warmth for temperature-sensitive plants, especially in colder months.
    • Visual & Audio Alerts: The RGB LED can be programmed for visual notifications, such as turning red when soil is dry or green when conditions are optimal. The piezo buzzer can alert you if immediate action is needed.

    Community Reviews

    Resources

    Documentation

    Datasheets

    3D Print Files

    Apollo Automation Social

    Package Contents

    • Assembled PLT-1 sensor with 3D printed case
      • Select a version before adding to your cart

    Batteries, charger and USB cable not included.

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 8043206457

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    4.6 ★★★★★
    Based on 14 reviews
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    J
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    Jodie
    Houston, US
    ★★★★★ 3
    Taking forever but worth it
    Size: 1-Panel, Size: 1-Panel
    Love the product. However, trying to take the screws etc out of its box, it’s almost impossible due to the adhesive inside it. I have neck and arm issues so for me it was even more difficult. Adhesive stuck to each washer and screw so I had adhesive all over my hands then I had to get it off of the items.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 21, 2025
    H
    Verified Purchase
    Holly
    Belleville, US
    ★★★★★ 5
    Great Dividers
    Size: 6 Panel-120"W, Color: Beige
    Love these!! Many uses. Simple, nice looking, sturdy overall. Well made. Bought to divide the unsightly storage area from the calm rest area in the basement. Also, these worked well for our garage party where the dividers let light and air in, though blocked the view of our party area from the cars driving by.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 14, 2026
    D
    Verified Purchase
    Danielle Mendoza
    Natrona Heights, US
    ★★★★★ 5
    Great purchase!
    Size: 6 Panel-120"W, Color: Beige
    Beautiful. Easy to assemble and sturdy. Material is durable. Best room divider.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026
    M
    Verified Purchase
    Melissa
    Dallas, US
    ★★★★★ 5
    Just what I needed
    Size: 4 Panel-136"W, Color: Black
    I have a one bedroom apt and my son stays with me half the time. He has an air mattress in the living room until I can afford a 2 bedroom. But he’s in his early teens and needs privacy. I bought this after looking online at may of these. I’m so glad I went with this one. It covers his air mattress 3/4 of the way around and now he has his own little nook. I also gave him some led lamps and he might it like his own little nightclub. He LOVES it. And now he’s excited to be in his space. The quality is so good and there’s no see through, no gaps, it’s perfect.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 24, 2026
    J
    Verified Purchase
    Jonas4321
    Pawtucket, US
    ★★★★★ 4
    Instructions could be clearer, but assembles well and is sturdy
    Size: 3 Panel-102"W, Color: Black
    The only reason for the lack of a star is the iffy instructions. There are a few different washers and the instructions could make the difference a LOT easier to understand and thereby reduce the need to re-do things. Other than that, the panels were easy to assemble and the parts fit well together. I was able to disassemble the screens and store them for a future use, which is nice. One caution - the feet that make the panels stand up will likely be a trip hazard, so be sure to plan the location for this device carefully.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 8, 2025

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