ThermoPro TX-2 Rainproof Transmitter Sensor for TP60S/TP65/TP63/TP63A Thermometer Humidity Monitor (Accessory Only)

Universal outdoor sensor is compatible with all ThermoPro indoor outdoor thermometer hygrometer - TP60S/TP62/TP65A/TP67A: Accessory only, can not be used alone. with additional remote sensors, track environmental conditions in 4 locations at most: The sensor's initial channel is channel 1, when connecting, please ensure to slide button on the back to set Channel 1, 2 or 3. Place anywhere with the tabletop and wall mountable design: Requires 2 AAA batteries (Batteries included).