Under $50
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YoLink Water Leak Detector 4 105dB Sensor (Hub Required)
105dB alarm and long-range LoRa connectivity make this the loudest, most reliable leak detector for whole-home coverage.
YoLink Water Leak Sensor 3-Pack, LoRa Long-Range Smart Detector
LoRa tech gives 1/4-mile range, perfect for detached buildings without Wi-Fi.
YoLink Water Leak Sensor 3 with 105dB Siren (Hub Required)
LoRa-powered sensor with a deafening siren for remote outbuildings and basements.
Tapo T300 Smart Water Leak Sensor 90dB IP66
A 90dB alarm and IP66 weatherproofing make this a no-brainer for catching leaks before they cause costly damage.
SONOFF SNZB-05P Zigbee Water Leak Sensor (No Cable)
A compact, long-range Zigbee leak sentinel with 5-year battery life for smart home integration.
ZOOZ ZEN52 Z-Wave Double Relay Smart Switch
A Z-Wave double relay that fits behind existing switches, enabling independent control of two devices without a neutral wire.
Honeywell Home RCHTSENSOR-1PK Smart Room Sensor
Smart sensor that fine-tunes your thermostat for each room's temperature.
$50 - $100
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Google Nest Temperature Sensor (3-Pack)
Auxiliary sensors that finally bring true room-by-room temperature control to your Nest system.