DIGITAL ENGINE TACHO PET 2000 https://www.agskartparts.com.au/products/1135/digital-engine-tacho-pet-2000
GENUINE PET 2000 PLUSE DIGITAL DISPLAY WITH , WITH MAXIMUM REV RECALL [MANUFACTURED JAPAN]
[Specs]
Measuring Range (rpm): 100 to 30000
Resolution (rpm): 10
Detection Distance (mm): 150
Power supply: internal battery (not replaceable)
Battery life: 20,000 hours
Measurement Precision: ±10r/min
W x D x H (mm): 61 x 12 x 44
Mass: 30g