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This dual smart wireless lavalier microphone includes 2 transmitters and 1 receiver
and center zones
convenient for travel
the low frequency is powerful
Aluminum alloy armor for shock-absorption
UT373 Non-contact High-precision Laser Tachometer Digital Display Motor Speedometer % Holder This dual smart wireless lavalierMeasurement method: Non contact (Laser) Photoelectric Working Current: 40mA 1. Measurement range: 10 99999RPM 2. Digital non contact tachometer for measuring the speed of motors and other machines. The device is capable of displaying the results in RPM or revolutions. The portable device is capable of safely measuring a rotating object by a non invasive method. 3. Features: automatic range, speed measurement and speed counting, single trigger laser