{"product_id":"rotary-archer-digital-engine-tachometer-handheld-rpm-meter-100-19-000-rpm-2-4-stroke-compatible","title":"Rotary Archer Digital Engine Tachometer — Handheld RPM Meter 100–19,000 RPM, 2‑\/4‑Stroke Compatible","description":"\u003cp\u003e\u003cstrong\u003eThe Rotary Archer Digital Engine Tachometer is a compact, accurate RPM meter that replaces Echo 99051130017 and measures engine speed from 100 to 19,000 RPM for both 2‑stroke and 4‑stroke motors.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis handheld tachometer delivers fast, reliable RPM readings for small engines, outdoor power equipment, and workshop testing. Built as a compatible alternative to the Echo 99051130017 and PET-1000R, the Archer provides a clear digital display, selectable measurement modes for 2‑ and 4‑stroke ignition patterns, and the option to read RPMs wirelessly via pulse detection or through a supplied clip‑on lead.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly and accurately does this tachometer read engine speed?\u003c\/h3\u003e\n\u003cp\u003eThe Archer offers rapid updates and precise readings suitable for tuning and diagnostics. It samples RPM at a 0.5 second refresh interval and reports values within a tight accuracy band.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 100 to 19,000 RPM\u003c\/li\u003e\n  \u003cli\u003eAccuracy: approximately ±10 RPM\u003c\/li\u003e\n  \u003cli\u003eRefresh rate: 0.5 second intervals for near real‑time feedback\u003c\/li\u003e\n  \u003cli\u003eStable digital readout minimizes interpretation errors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use it on both 2‑stroke and 4‑stroke engines?\u003c\/h3\u003e\n\u003cp\u003eYes — the device includes selectable settings to match ignition pulse patterns from different engine types. Switch modes to ensure each combustion cycle is interpreted correctly and avoid misleading RPM numbers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDedicated mode selection for 2‑stroke engines\u003c\/li\u003e\n  \u003cli\u003eSeparate mode for 4‑stroke engines\u003c\/li\u003e\n  \u003cli\u003eMode switching adjusts pulse counting logic for accurate results\u003c\/li\u003e\n  \u003cli\u003eWorks with a wide variety of small engine ignition systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDo I need to connect wires, or can it read RPMs wirelessly?\u003c\/h3\u003e\n\u003cp\u003eThe Archer supports both wired and pulse‑activated wireless readings so you can choose the method that fits your workflow. Use the included clip lead for direct contact measurement or rely on pulse sensing for non‑intrusive checks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWireless pulse activation reads without direct electrical connection\u003c\/li\u003e\n  \u003cli\u003eClip‑on lead included for hardwired measurement when required\u003c\/li\u003e\n  \u003cli\u003eIdeal for delicate electronics or when endpoint access is limited\u003c\/li\u003e\n  \u003cli\u003eFlexible options reduce setup time in the field or shop\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect in terms of build and compatibility?\u003c\/h3\u003e\n\u003cp\u003eThe instrument is engineered as a drop‑in alternative to familiar tachometer modules, offering compatible performance with Echo and PET units. Its compact housing and clear display make it easy to read and integrate into routine maintenance tasks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned as a replacement for Echo 99051130017 and similar PET‑1000R units\u003c\/li\u003e\n  \u003cli\u003eCompact handheld form factor for portability\u003c\/li\u003e\n  \u003cli\u003eClear digital display for quick visual checks\u003c\/li\u003e\n  \u003cli\u003eSupplied accessories include the clip lead for wired measurements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Technicians, small engine owners, landscapers, and DIYers who need an affordable, accurate tachometer for tuning, troubleshooting, and routine maintenance. If you work with chainsaws, trimmers, blowers, lawn mowers, or other gasoline engines and want a dependable replacement for Echo part numbers or a PET‑1000R‑style meter, the Rotary Archer delivers practical functionality without extra complexity.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this tachometer compatible with Echo 99051130017?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Rotary Archer is designed as a replacement compatible with Echo 99051130017 and similar PET‑1000R units.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can it measure both 2‑stroke and 4‑stroke engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It has selectable modes for 2‑stroke and 4‑stroke engines to ensure accurate pulse counting.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rotary","offers":[{"title":"Default Title","offer_id":48080346448030,"sku":"B073YCMVRJ","price":119.66,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/rotary-archer-front-display.jpg?v=1785780501","url":"https:\/\/northtrailauto.ca\/products\/rotary-archer-digital-engine-tachometer-handheld-rpm-meter-100-19-000-rpm-2-4-stroke-compatible","provider":"North Trail Auto","version":"1.0","type":"link"}