Net Weight: 83g

Size:108mmx60mmx32mm(LxWxH).
Mcu Embedded, and based on optoelectronic, semiconductor laser and other advanced technology, measuring RPM is accurate non-contact.
Wide range of the measurement and high-resolution.
Automatic measuring and manual measuring selection.
The power of laser is of high and low selection to adapt the far and near distance
Automatic to record 50 sets of data, and the sampling interval time could be changed.
Automatic to record the max, min and average data.
LCD light helping work in the dark.
Auto shut off after 30 seconds without operation.
Specification:
Display:5 digits LCD, Max 99999
Measuring range:2.5RPM~99999 RPM
Resolution:2.5 RPM~999.9 RPM(0.1RPM).
1000 RPM~99999RPM(1RPM).
Accuracy:±(0.05% rdg+1 digital).
Available distance:50mm~500mm
Sampling time:0.5s(Over 120 RPM).
Time base: Crystal oscillator
Operating temperature:0?C~50?C
Storage temperature:-20?C~60?C
Power Supply: 2 Pieces AAA batteries　(Not included).
Power consumption :Laser in low power 25MA; Laser in high power:40MA.
Laser Power: < 0.5MW.