Koso Proton RPM/Hour Meter

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Koso Proton RPM/Hour Meter by Koso.The Proton RPM & hour meter will allow you to visualize the revolutions of your motor while the hour meter will keep track of the amount of time your engine has ran. Specifications (R= Range U=Unit) Digital tachometer R: 0 ~ 20, 000 RPM U: 100 RPM Max RPM Record R: 0 ~ 20, 000 RPM RPM input pulse R: 0.5 / 1 / 1.5 / 2 Total engine hour meter R: 0 ~ 999.9 / 1,000 ~ 99,999 H Hour meter A/B R: 0 ~ 999.9 H | U: 0.1 H Internal battery type CR 2032 Battery lifetime (continuously) ± 350 H Battery self consumed lifetime ± 5 years Effective temperature range 14 ~ 140 °F (‑10 ~ 60 °C) Meter standard JIS D 0203 S2 Meter size (L x W x H) 11/16 x 1 15/16 x 1 5/16” (18 x 49 x 33 mm) Instructions Download PDF Show more