5895179592663040 Businesspro Mall M5Stack Trace Unit (For Lidar Bot/Bala) (行貨1年保養) TRACE is mainly consist of 4 sets of IR, 1x infrared emitting and 1x infrared receiver for each set. The infrared LEDs should be placed towards and close to the Product #: businesspro-M5Stack Trace Unit (For Lidar Bot/Bala) (行貨1年保養) 2022-05-10 Regular price: $HKD$78.0 Available from: Businesspro MallIn stock