DG-PRO1S GPS Receiver Thank you for viewing. I used this on a Grom during circuit走行 (track riding). There are no noticeable scratches or stains on the main unit, but since I used Velcro tape when attaching it to the Grom, the tape is still attached. It will be shipped via Nekopos (a Japanese delivery service). Specifications: Product Name: Single-Frequency GNSS Receiver Model: DG-PRO1S Body Dimensions (W*D*H) (excluding power cable): 48.5(W)*50(D)*10.8(H)mm Compatible Android OS: 5.0 or higher Power Cable: 900mm Weight: 42g Color: Black Power Supply Voltage: 4.5V~5.5V Current Consumption: 130mA Protection Circuit: Reverse power protection Shock Resistance, Waterproof, Dustproof: IP67 Country of Origin: Japan