Tachometer - Benetech GM 8905

The device allows to measure the rotational speed in the range of 2.5 to 99,999 rpm resolution 0.1 rpm Meter can be used, for example, to study the speed of engines.

• Range: 2.5 rpm to 99,999 rpm
• Resolution:
  • 0.1 rpm from 2.5 rpm up to999,9 rpm
  • 1 rpm - 1000 rpm to 99 999 rpm
• Basic accuracy:
  • 0.1%n+5d - from 2.5 rpm to 999.9 rpm
  • 1% n+5d - from 1000 rpm to 99 999 rpm
• Laser power: class II, 2 - 5mW
• Sample time: every 1 second
• Operating modes:
  • measuring average speed (AVG)
  • maximum speed (MAX)
  • minimum speed (MIN)
  • measuring current
• Measurement distance: 50 to 500mm
• Auto off function after 60 seconds of inactivity
• Indicator of battery level

• Power supply: 2 x AAA battery (included)
• Operating temperature: 0 °C to 50 °C
• Storage temperature: from 10 °C to 80 °C
• Unit dimensions: 127 x 55,7 x 29.9 mm
• Weight: 106 g

• Tachometer GM8905
• 2 x AAA battery
• 3 reflective tape: 200 x 12 mm
• The user manual