{"product_id":"digital-led-tachometer-rpm-hall-sensor-npn","title":"4x Digital LED Tachometer RPM Speed Meters Suitable For Hall Proximity Switch Sensor NPN Set","description":"\u003cp\u003e\u003cstrong style=\"font-size:14px;\"\u003eFeatures:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eFour-digit Reading\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eThe digital panel meter adopts the latest A\/D conversion chip and high-stability reference IC, with a reasonable circuit design.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eCan measure voltage and current, or connect with external sensors to measure temperature, pressure, displacement, etc.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eSuitable for display of various digital instruments.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eGood stability, high measurement accuracy, strong anti-interference ability.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eStandard exterior size, easy to install.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong style=\"font-size:14px;\"\u003eSpecifications:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eBrand: MAXCOOL\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eMeasurement accuracy: ±0.1%, reading 1 word\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eDisplay mode: 0.56\" blue LED\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eDisplay refresh rate: \u0026gt;3 times\/sec\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eWorking power: AC\/DC 8-24V, 40mA\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eExternal dimensions: 79 × 42 × 32mm\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eInstallation size: 76 × 39mm\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eWeight: approx. 50g\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eOver-range display: first digit shows \"1\" or \"-1\", last three digits blank\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eInput pulse signal: NPN\/PNP open collector, contact switch, non-contact switch, level pulse\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eInput signal voltage: Low -30V~0.6V, High 4-30V\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003eMeasurement range: Speed 10-9999 RPM\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong style=\"font-size:14px;\"\u003ePrecautions for use:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003e1. Connect the plug correctly according to wiring requirements.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003e2. Avoid strong electromagnetic interference; use shielded or twisted wires for measurement.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003e3. Keep the counter signal close to the terminal to shorten the signal line.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003e4. Avoid routing near strong electric or power wires; use shielded wires if necessary.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003e5. Mechanical or micro switches are not recommended; if used, choose high-quality switches or magnetic switches to avoid counting errors.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong style=\"font-size:14px;\"\u003ePackage Include:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003e1 × Blue LED Tachometer\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003e1 × Hall Proximity Switch Sensor NPN\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px;\"\u003e1 × Bracket\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong style=\"font-size:14px; color:red;\"\u003eNote:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size:13px; color:red;\"\u003ePlease allow slight 1-2cm difference due to manual measurement and minor color variation due to different display settings.\u003c\/span\u003e\u003c\/p\u003e","brand":"MAXCOOL","offers":[{"title":"Default Title","offer_id":48234328555749,"sku":"90UN077","price":68.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/5371\/8757\/files\/4x-digital-led-tachometer-rpm-speed-meters-suitable-for-hall-proximity-switch-sensor-npn-set-5798358.jpg?v=1768363628","url":"https:\/\/frazysautoparts.com\/products\/digital-led-tachometer-rpm-hall-sensor-npn","provider":"Frazy's Auto Parts","version":"1.0","type":"link"}