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  • Must purchase SmartBee Environmental Base or Premier System to add this device and scale up your grow.
  • Without disrupting what's already familiar and common knowledge to growers, SmartBee software is the platform that integrates grow systems and sensor data to alert users of potential problems and even takes actions to minimize crop loss. With user-defined set points, simultaneous control across all of the systems within your gardner has never been more centrally located or easy to operate. The easy-to-use SmartBee™ App is the main interface, allowing for multiple gardens and their respective nurseries to operate at varying phases of production within the same facility, and all controlled from your web-enabled phone, tablet, or computer.
  • Excess garden light solar charges the internal Li-Ion battery to extend the period of time before recharge is needed
  • Plant-safe green LED indicator lights ensure your SmartBee™ Controllers system is active and online, while the photo
transmitter and internal Temperature and Humidity sensors are in a constant state monitoring.
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LTH Sensor

Free ground shipping. Expedited and international shipping options are available.
All SmartBee products come with a 30 day, no questions asked, money back guarantee.
All SmartBee products are covered by a one year warranty; we will replace your defective gear at no cost to you. Additional coverage for your second year of ownership is also available.

Product Description

The SmartBee LTH sensor is designed for constant monitoring of your Light, Temperature, and Humidity levels. As the main drivers of plant growth, efficient and consistent monitoring and control of these factors are crucial to the quality of your garden. Ensuring your garden is operating within ideal conditions is why SmartBee Controllers created a modular system of scalable sensors and control software that give remote access and allow threshold adjustments 24/7, or what we call the SmartBee advantage.


  • Excess garden light solar charges the internal Li-Ion battery to extend the period of time before recharge is needed  
  • Wireless data transmission for “Real-Time” environmental readings.  
  • “Easily installs into any existing garden configuration.
  • Utilizes industrial-grade, machine-to-machine wireless mesh network technology (IEEE 802.15.4)
  • Integrate with multiple LTH or LTH Pro sensors for individual and aggregate sensor data logging
  • Sturdy plastic construction for free-hanging or wall-mount installation.

Product Videos

SmartBee | How-To | Environmental Sensor Placement 04:45

In this video, we go more in-depth on the SmartBee® Controllers Light/Temperature/Humidity and Light/Temperature/Humidity/CO2 sensors including product features, placement options for nearly any garden, and how you can become a smarter grower thanks to SmartBee® Controllers. Be sure to read the Getting Started Guide before enjoying this video, and feel free to reach us at

  • SmartBee | How...
    In this video, we go more in-depth on the SmartBee® Controller...

Warranty Information

All SmartBee products come with a one-year warranty against defects in materials and workmanship, subject to certain terms and conditions. SmartBee will replace your defective gear at no cost to you. In addition, warranty coverage is also provided for the second year of ownership. During the second year, SmartBee will replace your defective gear after payment of a modest deductible. Replacement units are shipped at SmartBee's cost and are typically delivered in five days or less. Learn more here.

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