# Thermacell LIV 2.0: Upgraded Mosquito Repellent System Enhanced design and faster startup for effective yard protection against mosquitoes. - **Source:** [Wired](https://www.wired.com) - **Published:** 2026-09-20 - **Original article:** - **On Brifing:** https://brifing.si/s/591949af-008f-4256-8946-1341425e0c70 ## Mosquito problem escalation After moving to Texas, the author faced severe mosquito issues, with pests becoming more aggressive over 25 years. Initial solutions like pesticide cannons provided only 48-72 hours of relief at high annual costs. This led to a search for more sustainable solutions, culminating in the discovery of Thermacell's LIV system four years ago, which offered semi-permanent protection. ## LIV 2.0 system overview The upgraded LIV 2.0 maintains the core concept of Wi-Fi-connected hubs and pesticide-emitting repellers but introduces several improvements. Each hub now supports up to 10 repellers (up from 6) and features dual cable ports for flexible installation. The system uses metofluthrin vials that mosquitoes detest, creating a protective perimeter around areas like swimming pools. ## Repeller design upgrades The new repeller design includes a more visible LED status ring and a top hatch that opens when operational, directing vapor upward for better coverage. These changes reduce warm-up time from 30 minutes to about 15 minutes. The cylindrical design remains, but the updates aim to improve both functionality and user awareness of system status. ## Installation changes Unlike the original DIY system, LIV 2.0 requires professional installation despite its simplicity. The mounting bracket redesign necessitates new wall screws for upgrades. While this adds cost, the dual-cable hub design offers more placement flexibility relative to power outlets, potentially optimizing repeller positioning for better coverage. ## Chemical effectiveness The system still uses 5.5% metofluthrin, now EPA-approved against midges as well as mosquitoes. Users must handle capsules with gloves due to skin-numbing effects. Though not mosquito-killing, the vapor creates an effective barrier. The author notes occasional breaches by determined insects, suggesting the system isn't 100% foolproof. ## App improvements The new mobile app adds scheduling, timers, and LED color control, marking significant upgrades over the original. While sometimes lagging in reflecting power state changes, it generally performs reliably. Notably missing is the promised Alexa integration, which Thermacell claims is still in development over a year after initial announcement. ## Cost considerations Pricing has increased, with a starter kit (1 hub + 3 repellers) now costing $1,746. Refills remain at $250 for six 100-hour cartridges. The switch to professional installation adds expense, though the hardware improvements may justify costs for new buyers. Existing LIV users may find the upgrades too incremental to warrant replacement. ## Market position Despite its premium price, LIV 2.0 stands out in residential mosquito control. The author confirms it outperforms most tested solutions, offering near-complete protection with faster response times. While not perfect, its effectiveness against disease-carrying insects may justify the investment for those in high-risk areas. ## Sources covering this story - https://www.wired.com/review/thermacell-liv-smart-mosquito-repellent-system-2/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._