{"product_id":"mighty-mule-driveway-vehicle-sensor-fm140-100-ft-direct-burial-wired-probe-for-hands-free-exit","title":"Mighty Mule Driveway Vehicle Sensor FM140 — 100 ft Direct-Burial Wired Probe for Hands-Free Exit","description":"\u003cp\u003e\u003cstrong\u003eThe Mighty Mule FM140 100 ft Driveway Vehicle Sensor is a direct-burial magnetic probe that detects metal vehicles up to a 12-foot field and triggers your automatic gate to open for exit without using a remote.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis hardwired driveway sensor is designed to give vehicles a hands-free exit by sensing mass metal in motion as it passes through its detection zone. Tough enough to be trenched beside a driveway, the FM140 connects directly to your Mighty Mule control box and works with single or dual gate systems. It’s available with 100 feet of cable so you can position the probe where it best detects outbound traffic while staying safely inside your property line.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the FM140 detect vehicles and trigger the gate?\u003c\/h3\u003e\n\u003cp\u003eThe FM140 uses a magnetic field created around the buried probe to sense moving metal. When a vehicle passes through the roughly 12-foot detection zone, the sensor signals the gate opener control box to initiate an open cycle for exit without a remote. Sensitivity is tuned for common vehicles including cars, trucks, motorcycles and ATVs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-burial probe senses mass metal in motion, not radio or infrared.\u003c\/li\u003e\n  \u003cli\u003eApproximately 12 ft. detection radius around the buried wand.\u003c\/li\u003e\n  \u003cli\u003eWired connection to the gate opener control box ensures reliable triggering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere and how should I install the probe for best performance?\u003c\/h3\u003e\n\u003cp\u003eInstall the probe beside your driveway within the property, trenching the 100 ft. cable and burying the wand no deeper than 12 inches for optimal field reach. Position the wand so vehicles pass through the detection field as they exit; typical placement is a few feet off the driving surface toward the property side. Wiring runs back to the control box can be between 3 and 100 feet per the product specifications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrench and bury probe up to 12 inches deep, parallel to driveway edge.\u003c\/li\u003e\n  \u003cli\u003eMaintain 3–100 ft. cable run back to the control box for flexible placement.\u003c\/li\u003e\n  \u003cli\u003ePlace probe on the property side so exiting vehicles cross the detection zone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use the FM140 with my current Mighty Mule gate opener and what gate types are supported?\u003c\/h3\u003e\n\u003cp\u003eThe FM140 is compatible with Mighty Mule control boxes designed to accept a wired driveway sensor input and supports both single and dual gate configurations. It integrates with the gate opener just like the factory wired exit sensor, providing a simple and reliable free-exit solution for vehicles. For wireless needs or different cable lengths, Mighty Mule offers alternative models.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with Mighty Mule openers that accept a wired sensor connection.\u003c\/li\u003e\n  \u003cli\u003eSupports both single and dual gate systems for flexible installations.\u003c\/li\u003e\n  \u003cli\u003eAvailable in 50 ft. and 150 ft. lengths or a wireless FM130 option if preferred.\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance and reliability can I expect over time?\u003c\/h3\u003e\n\u003cp\u003eOnce properly installed and sealed in place, the FM140 requires minimal upkeep beyond occasional visual checks of the cable pathway and control-box connections. The buried probe design protects the sensor from weather and debris, while the hardwired connection reduces interference issues common with wireless alternatives. Periodic testing after storms or heavy ground work is a good practice to confirm continued detection performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLow-maintenance buried wand built for outdoor conditions.\u003c\/li\u003e\n  \u003cli\u003eHardwired connection reduces signal interference versus wireless units.\u003c\/li\u003e\n  \u003cli\u003eSimple periodic testing ensures the detection field remains effective.\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The FM140 is aimed at homeowners, property managers, and small facilities using Mighty Mule automatic gate openers who want a dependable, hands-free exit solution for vehicles. If you prefer a wired, low-interference sensor that can be positioned up to 100 feet from the gate and buried beside a driveway, the FM140 offers a practical, DIY-friendly option that works with both single and dual gate setups.\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: How deep should I bury the FM140 probe?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Bury the probe no deeper than 12 inches beside the driveway for optimal detection performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the FM140 be placed far from the gate opener?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the FM140 includes 100 ft. of cable and can be installed between 3 and 100 feet from the control box.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Mighty Mule","offers":[{"title":"Default Title","offer_id":55171074752855,"sku":"B0015RY44K","price":222.31,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/mighty-mule-fm140-front-view.jpg?v=1790437617","url":"https:\/\/britishgarage.co.uk\/products\/mighty-mule-driveway-vehicle-sensor-fm140-100-ft-direct-burial-wired-probe-for-hands-free-exit","provider":"British Garage","version":"1.0","type":"link"}