SKU: 53356607736
indoor plant sensor

indoor plant sensor PLT-1 Ultimate Plant Sensor

Sale price$24.87 Regular price$27.63
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Ships within 48 hours · Estimated delivery Sep 25 - Sep 30

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Description

indoor plant sensor PLT-1 Ultimate Plant SensorThe Apollo Automation PLT 1 Ultimate Plant Sensor is the all in one solution for monitoring your houseplants through Home Assistant. This sensor measures soil moisture, humidity, temperature, light (LUX), and UV. It features an RGB LED and a piezo buzzer for visual and audible notifications. Thanks to the precision capacitive soil moisture sensor with a protective coating, you're assured of reliable and long lasting measurements. Choose from two

The Apollo Automation PLT-1 Ultimate Plant Sensor is the all-in-one solution for monitoring your houseplants through Home Assistant. This sensor measures soil moisture, humidity, temperature, light (LUX), and UV. It features an RGB LED and a piezo buzzer for visual and audible notifications. Thanks to the precision capacitive soil moisture sensor with a protective coating, you're assured of reliable and long-lasting measurements.

Choose from two versions:

  • PLT-1B (Battery Version): Powered by a rechargeable 18650 battery (not included), ideal if you don't have access to an outlet. The battery lasts up to 6 months with standard use. A major advantage is its flexibility in placement. The downside is that the device is somewhat larger, and you'll need to provide your own battery and charger.
  • PLT-1 (USB-C version): More compact and works directly on USB-C power, so no hassle with batteries. Perfect for permanent locations near a wall outlet. The advantage is the smaller size and no battery maintenance. The disadvantage is that you always need a cable.

Both models are designed for indoor use and can be easily integrated with Home Assistant via Wi-Fi (ESPHome). For additional functionality, you can add the optional DS18B20 waterproof soil temperature probe, which also accurately measures the soil temperature. This probe is ideal for plants that are sensitive to temperature fluctuations.

Please note: The plant sensor is not waterproof and must be protected from direct water and high humidity.

Included with purchase:

  • PLT-1 sensor (battery or USB-C version)
  • Housing
  • Apollo sticker

Optional:

  • DS18B20 waterproof soil temperature probe (with 20 cm cable)

Advantages and disadvantages per version:

Model Advantages Disadvantages
PLT-1B (Battery) Flexible placement, no cable required, long battery life (up to 6 months), ideal for places without a power outlet Larger size, battery and charger not included, battery needs to be replaced/charged occasionally
PLT-1 (USB-C) Compact size, no battery maintenance, always active immediately Always need a cable/socket, less flexible to place

Advantages of the optional soil temperature probe:

  • Accurately measures soil temperature, ideal for sensitive plants or special applications.
  • Waterproof and 20cm of cable.
  • Easy to connect to both PLT-1 models.
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: 53356607736

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4.3 ★★★★★
Based on 8 reviews
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Mark Mitchell
Omaha, US
★★★★★ 5
Surprised by what a great sweater this turned out to be!
Size: Large, Color: Navy
I purchased three of these, various colors. I'm 6'1" /160 lbs. (long and lean) and a large is a great fit without being too loose or bulky. Holds its shape nicely for about 5-6 wearings before it starts to stretch out—particularly the turtleneck. I totally ignored the washing instructions and machine-washed (front-loader) all three sweaters with other items in cold water, regular HE liquid detergent, rapid-spin dry, then dried them in the dryer on delicate, lowest temperature setting for 30 minutes. They came out 98% dry and perfectly re-shaped with no shrinkage. The sweater is supple and soft, and warm and comfortable to about 60°F, after which it's a little warm (for me.) I cannot think of any reason to not purchase one: great fit, great look, great comfort, great price.
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Reviewed in the United States on November 19, 2023
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Verified Purchase
DFS
Charlottesville, US
★★★★★ 5
Love this Sweater!
Size: Medium, Color: Black
Had my doubts, but this sweater is great! The color is great, follow the care instructions, and this sweater will not let you down. Feels great, fits great, no shrinkage, and looks excellent. Does it pill? Yes, expect it, but I also bought the BEAUTURAL Fabric Shaver and Lint Remover, Sweater Defuzzer with 2-Speeds. And it works beautifully not only on this sweater when needed, but also on my winter beanies and other clothes, which now look like new. My advice then. Buy the de-piller and buy this Sweater. I have purchased six, and I love these sweaters, especially now that I know how to best care for and keep them like new.
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Reviewed in the United States on November 4, 2025
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Verified Purchase
Yoga MamaLV
Natrona Heights, US
★★★★★ 5
SEXY BLACK TURTLENECK SWEATER!
Size: X-Large, Color: Black
This is soft, looks amazing on my husband who is a big guy (6’2” @245) so not everything fits all the time. Sleeves are long enough, and the sweater looks great on him. Soft material, nice collar rate 10/10. Will try and get a nice pic of him in it!
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Reviewed in the United States on January 9, 2026
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Shooter
Waukegan, US
★★★★★ 4
Nice economy casual sweater,
Size: Large, Color: Off-white
The sweater is fine for the price, with correct fit. Arrived fast. Nice neutral cream/oatmeal color. It has a fairly loose open weave and is predominantly cotton, so it’s quite breathable and well suited for layering in cool but not truly cold weather. The knit is a little coarse, not really scratchy but not very soft. It’s a good value for what they charge. And fine for casual wear. But I ultimately decided to return it and spend a lot more to get a merino wool sweater because they are dressier, much warmer for weight, MUCH softer, and less bulky under a jacket. I like to wear mock turtlenecks under a sport coat in the fall and this sweater was a little too thick for that.
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Reviewed in the United States on December 8, 2023
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Ralph A.
Chelsea, US
★★★★★ 5
Soft and comfortable but runs a bit large
Size: Medium, Color: Off-white
I got this turtleneck in the off white color, and it looks very clean and easy to style. The color is true to what is shown and works well with casual or more dressed up outfits. The fabric feels soft and has a nice amount of stretch, which makes it comfortable to wear for longer periods without feeling stiff. The sweater feels lightweight but still warm enough for cooler days. It is not heavy or bulky, so it layers easily under jackets or coats. It also seems fairly wrinkle resistant. After wearing it and folding it, it still looked neat without needing much adjustment. In terms of fit, it does run a little big. I usually wear a medium, and while this one is still wearable, it feels slightly looser than expected, especially through the body. It is not a big deal, but I would probably order a smaller size next time for a more fitted look. The turtleneck itself sits comfortably around the neck and does not feel tight or irritating. Overall, it feels like a comfortable and easy to wear piece with good stretch, a nice lightweight feel, and a clean look. Just something to keep in mind on sizing if you prefer a closer fit.
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Reviewed in the United States on December 18, 2025

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