We are air velocity meter with 40mm vane with temperature & humidity measurement including calibration protocol,protective cap, wrist strap, belt holder,batteries, measuring range velocity : 0.4 . 20ms,resolution: 0.1ms,accuracy: +- (0.2 ms + 2% of m.v.) , measuring range temperature : -10 . 50°c,resolution: 0.1°c,accuracy: +- 0.5 °c, measuring range humidity : 0 ... 100% rh,resolution: 0.1%rh,accuracy: +- 2.5 %rh ( 5...95% rh ), accuracy: +- 0.5 °c, part no - 0560