Contact Tachometer Digital Display Tachometer Hand Held Tachometer Motor Speed Meter Hand-held Electric Mixers and passive radiator deliver great

and passive radiator deliver great bass and treble

and can adapt to all weather conditions

moisture- proof

There are two bright colorsLEDNight light，Large light guide pointer，Driving at night，The dial mileage is clearly visible

2）By unauthorizedOfPersonnel repair。

Contact Tachometer Digital Display Tachometer Hand Held Tachometer Motor Speed Meter Hand-held Electric Mixers and passive radiator deliver greatShips FREE Handling Day: 1 3 Days, Arriving Day: 15 35 Days[SHORTDESCRIPTION] Specifications Technical parameter Measuring range: 10~99999speedRPM branchResolution: 0. 001 0. 01 0. 1 1RPM Accuracy: 0. 04% 2dgts reaction time: 1second( >60 rpm) > 1 second ( 10 ~ 60 rpm) Display mode: LCD Display five digits function: Keep big Small value size: 124(L)x50(W)x33(H)mm weight: 140g Power supply: 9VBattery enclosureCarton,Battery,Concave convex joint,an