Tachometer 4 Digital LED Tach RPM Speed Meter + Hall Proximity Switch Sensor NPN Color:Red 47"Fixation holes center to center

47"Fixation holes center to center : 79mm/3

Applications: wood / aluminum / non-ferrous metal / plastic / fiberglass/ painted surfaces

Remote light control anti-theft alarm

Fit for VW: Golf

Tachometer 4 Digital LED Tach RPM Speed Meter + Hall Proximity Switch Sensor NPN Color:Red 47"Fixation holes center to centerFeature: 1: 4 digits display, clear and easy for readingsMini size, high performance and fast reaction speed. 2: With good stability, high accuracy, anti interference ability. 3: Using the latest A D conversion chip, high stability reference IC and stick chip components. 4: It can be applied to voltage and current measurement, also can be an external sensor to measure temperature, pressure, displacement and other physical quantities 5: Setting