What are the ppr? i need it set to 2 since it’s reading double my rpm

We think you would like to know how to set the engine firing patterns(the default value is 1P1R) to adjust the RPM accuracy, which suitable to gas engine type 4 stroke 2 cylinder or 2 stroke 1 cylinder, so first you must sure what's the type of your engine then switch the 1P1R to followed 1P2R,2P1R......according to the comparison form into user manual, another important thing that's the signal wire must 5-8 circles on the spark plug.

can the signal wire be extended?

Yes you can splice a wire on to it make the signal wire longer.

Should I wrap the pickup wire around the head of the ignition coil or the spark plug wire (4 stroke)?

Around The wire near the boot on the plug

Does hour meter count only the hours the motor is ACTUAL running?

yes. the TOT hours will count when machine is running. but it will display when machine is off, and the RPM value will be displayed when machine is on.

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RL-HM032A Digital Gas Engine Speed/Operating Hour Meter

RL-HM032A Digital Gas Engine Speed/Operating Hour Meter

Product ID: 38211537

Details

Brand
Runleader
EU Spare Part Availability Duration
2 Years
Item dimensions L x W x H
2.64 x 1.38 x
Material
Acrylonitrile
Number of Items
1

⏱️Dual timers for total & job-specific hours

⚙️RPM range up to 20,000 with max recall

🔴🟢Dual-color backlight with RPM warning

$47.08

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Description

⚡ Stay in the fast lane with precision engine insights!

DYNAMIC RPM MONITORING - Accurately measure and record engine RPMs up to 20,000 with instant max RPM recall and alert warnings.
DURABLE USER FRIENDLY - Waterproof IP65 rating, replaceable CR2032 battery, and data retention ensure reliable long-term performance.
EFFORTLESS INSTALLATION - One-wire hookup with flexible sensor wire length and versatile mounting options for any small engine setup.
PRECISION TIME TRACKING - Monitor total engine hours and specific job durations effortlessly to stay ahead on maintenance.
DUAL COLOR BACKLIGHT DISPLAY - Switch between green always-on mode and red alert backlight to never miss critical RPM thresholds.

The Runleader RL-HM032A is a compact, waterproof digital tach/hour meter designed for motorcycles, small gas engines, and outboard motors. It features dual timers for total and job-specific hours, measures RPMs up to 20,000 with max RPM recall and alert, and offers a dual-color backlight display for clear visibility. Easy to install with a one-wire hookup and replaceable battery, it ensures reliable maintenance tracking and engine monitoring.

Specifications

ASIN	B01FZ361CW
Best Sellers Rank	#38,859 in Automotive ( See Top 100 in Automotive ) #12 in Automotive Tachometers #156 in Outdoor Generators
Brand Name	Runleader
Customer Reviews	4.1 4.1 out of 5 stars (2,549)
EU Spare Part Availability Duration	2 Years
Item Dimensions	2.64 x 1.38 x 0.69 inches
Manufacturer	Ningbo Jiangbei Run Leader Electronics Co., Ltd
Material Type	Acrylonitrile Butadiene Styrene (ABS)
Model	HM032R
Part Number	HM032A
Thread Style	Wired
UPC	737590266744
Unit Count	1.0 Count

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