wheel diameter gauge with digital display and android and specification- measuring range available: 600 to 1250 mm, measuring accuracy*: +-0.3 mm (for tread with surface finish n 7 to n 8 or better), applicability: b.g. wheels, least count: 0.1 mm or 0.01 mm (user selectable), distance between axes of ball base: 250 mm +-0.5 mm, display: 7 segment led, size of display: width 5.2 cm. & height 1.5 cm., recording of readings: yes available on android phone/tablet, operating temp: -5 degree c to +50 degree c, weight : approx. 650 gms., power supply: in-built nimh rechargeable battery. make/model: wd-2 (e) bt or equivalent.
