YoLink Smart Temp & Humidity Sensor, LoRa Long Range, 2 Year Battery, Indoor Monitoring for Wine Cellar, Bedroom, Nursery, Greenhouse, RV, with App, Email & SMS Alerts, Alexa IFTTT, 2 Pack + Hub

From the brand

LONG-RANGE, LOW-POWER: LoRa sensors reach up to 1/4 mile in open air, far beyond WiFi & Zigbee. Up to 2 years of battery life—reliable even in basements, barns, and metal enclosures.
PROTECT WHAT MATTERS: Keep wine at the right temp, monitor your child’s nursery, ensure pets stay comfortable, or track humidity in greenhouses, RVs, and bedrooms. *Not for outdoor use.
EASY SETUP & INTEGRATIONS: Plug in the Hub via Ethernet/2.4 GHz WiFi, scan QR codes to add devices instantly. Compatible with Alexa (temperature only) and IFTTT applets.
ECONOMICAL SMART UPGRADE: Make any indoor space smarter. Start with temperature sensors, then expand with YoLink door, leak, and power sensors for complete protection.
ALERTS YOUR WAY: Get push notifications, emails, or SMS (incl. iOS Critical Alerts that bypass silent mode). Each Hub with two sensors includes 20 free SMS per month.