ThermoPro TP260B Indoor Outdoor Thermometer Wireless 1000ft/300m Range, Pro Accuracy Digital Hygrometer Humidity Meter with Remote Temperature Sensor, Inside Outside Thermometer for Home Patio Room

MARKET LONGEST RANGE 1000FT: Wireless outside thermometer with the market’s strongest and most reliable RF technology establishes a maximum range 1000 feet connection to this indoor thermometer with temperature humidity sensor (without obstructions)
HIGHLY ACCURATE SENSOR: Digital thermometer indoor outdoor temperature/humidity gauge features precise readings accurate to +/-0.5°F and +/-2-3% RH; Incl. trend arrows, High/Low records. Notice: If you only replace the remote sensor battery, please press and hold the CH/SYNC button of the receiver for 3 seconds to re-register
MULTI-LOCATION MONITORING: Remote wireless thermometer supports up to 3 weatherproof, cold-resistant outdoor sensors (sold separately) that work in rain or snow condition