diff --git a/Sensors/README.md b/Sensors/README.md
index 9304fbe..3f35404 100644
--- a/Sensors/README.md
+++ b/Sensors/README.md
@@ -7,7 +7,7 @@
 | BMP280 | [Bosch](https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmp280-ds001.pdf) | [Adafruit](https://github.com/adafruit/Adafruit_BMP280_Library)  |
 | DHT22 | [Aosong](https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf) |[beegee-tokyo](https://github.com/beegee-tokyo/DHTesp)  |
 | DS18B20 | [Dallas](https://datasheets.maximintegrated.com/en/ds/DS18B20.pdf) | [milesburton](https://github.com/adafruit/Adafruit_AHTX0)  |
-| LilyGo HiGrow | TTGO |
+| LilyGo HiGrow | [TTGO](http://www.lilygo.cn/prod_view.aspx?TypeId=50033&Id=1172) |
 | Multifunction ESP8266 Sensor Board | [Phil Grant](https://github.com/gadjet/Multifunction-ESP8266-Sensor-board) |
 | Motion Detector | 
 | Tipping Bucket Rain Gauge |