1)        Specification

Power source: Cigar lighter or battery 9 -15 V DC

Measure target: 2, 4 stroke, 1 – 12 cylinder

Measure range: 400 – 9999 RPM

Maximal error: < 20 RPM or relative 1 %

Response time: < 1 second

2)        Features

.Used for engine's RPM measurement of gasoline, diesel, and natural gas

.Directly connected to cigar lighter or battery to measure its RPM without any sensor

.RS-232 interface and LCD display

.Universal, connective to any emission gas analyzer and opacity meter

.Standard signal interface such as TTL or RS23

Dimensions:

l 144 mm(L)* 40 mm(H)*98 mm(W)

l Net weight: about 350g