--- product_id: 263317625 title: "LEFOO LF20 Extended Duty Pressure Switch, 10psi±2psi Adjustable, Air/Oil/Water Media, SPDT, 1/8 NPT Male, 1/4 Blade, Black, Automatic Operation, IP54 Rated" brand: "lefoo" price: "350.62 DT" currency: TND in_stock: true reviews_count: 5 url: https://www.desertcart.tn/products/263317625-lefoo-lf20-extended-duty-pressure-switch-10psi-2psi-adjustable-air store_origin: TN region: Tunisia --- # Compatible with air, oil & water Field-adjustable for precision 10psi±2psi adjustable pressure LEFOO LF20 Extended Duty Pressure Switch, 10psi±2psi Adjustable, Air/Oil/Water Media, SPDT, 1/8 NPT Male, 1/4 Blade, Black, Automatic Operation, IP54 Rated **Brand:** lefoo **Price:** 350.62 DT **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your system’s pulse with precision and power! ## Quick Answers - **What is this?** LEFOO LF20 Extended Duty Pressure Switch, 10psi±2psi Adjustable, Air/Oil/Water Media, SPDT, 1/8 NPT Male, 1/4 Blade, Black, Automatic Operation, IP54 Rated by lefoo - **How much does it cost?** 350.62 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/263317625-lefoo-lf20-extended-duty-pressure-switch-10psi-2psi-adjustable-air) ## Best For - lefoo enthusiasts ## Why This Product - Trusted lefoo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rugged Durability:** Brass base and IP54 rating ensure long-lasting reliability in demanding environments. - • **Multi-Media Compatibility:** Seamlessly works with air, oil, or water—versatility that keeps your operations fluid. - • **Compact & Efficient Design:** Space-saving form factor fits tight installations without compromising strength. - • **Precision Pressure Control:** Easily fine-tune pressure within ±2psi for flawless system performance. - • **Certified Quality Assurance:** UL, CUL, and CE approvals guarantee trusted safety and compliance. ## Overview The LEFOO LF20 Extended Duty Pressure Switch offers adjustable 10psi±2psi pressure control, compatible with air, oil, and water media. Featuring a durable brass base, compact design, and IP54 rating, it ensures reliable, steady operation in tough environments. Certified by UL, CUL, and CE, this SPDT switch supports automatic operation with easy field adjustment, making it a top choice for professional-grade pressure management. ## Description LF20 pressure switch is to stand up to extended duty applications. This switch is factory set but capable of field adjustment. The switch comes with UL, CUL and CE agency approvals. Capable of field adjusting pressure. Steady operating pressure. Outstanding design, durable construction and compact size. ## Features - Pressure Setting10psi±2psi - Media: air or oil or water - Switch Type: SPDT,1/8 NPT male; 1/4 blade. - Base material:brass. Oustanding design,durable construction and compact size. - Capable of field adjusting pressure. Steady operating pressure. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | LEFOO Industrial Co.,Ltd | | Part number | LF20 | | Item Weight | 59 g | | Product Dimensions | 3.75 x 6.3 x 3.75 cm; 58.97 g | | Item model number | LF20 | | Colour | Black, Yellow | | Item Package Quantity | 1 | | Number of Pieces | 50 | | Measurement System | metric | | Switch Type | 2-way | | Batteries included? | No | | Batteries Required? | No | ## Product Details - **Operation mode:** ON-OFF - **Current rating:** 20 Amps - **Operating voltage:** 250 Volts (AC) - **Contact type:** Normally Open - **Connector type:** ['4 blade', 'None'] - **Brand:** LEFOO - **Terminal:** SPDT - **Item dimensions L x W x H:** 37 x 63 x 37 millimetres - **Circuit type:** 2-way - **Actuator type:** Push Button ## Images ![LEFOO LF20 Extended Duty Pressure Switch, 10psi±2psi Adjustable, Air/Oil/Water Media, SPDT, 1/8 NPT Male, 1/4 Blade, Black, Automatic Operation, IP54 Rated - Image 1](https://m.media-amazon.com/images/I/416dYqoZRzL.jpg) ![LEFOO LF20 Extended Duty Pressure Switch, 10psi±2psi Adjustable, Air/Oil/Water Media, SPDT, 1/8 NPT Male, 1/4 Blade, Black, Automatic Operation, IP54 Rated - Image 2](https://m.media-amazon.com/images/I/61tUf8kqeqL.jpg) ![LEFOO LF20 Extended Duty Pressure Switch, 10psi±2psi Adjustable, Air/Oil/Water Media, SPDT, 1/8 NPT Male, 1/4 Blade, Black, Automatic Operation, IP54 Rated - Image 3](https://m.media-amazon.com/images/I/615SS3ktfxL.jpg) ![LEFOO LF20 Extended Duty Pressure Switch, 10psi±2psi Adjustable, Air/Oil/Water Media, SPDT, 1/8 NPT Male, 1/4 Blade, Black, Automatic Operation, IP54 Rated - Image 4](https://m.media-amazon.com/images/I/51JrSfSr6IL.jpg) ![LEFOO LF20 Extended Duty Pressure Switch, 10psi±2psi Adjustable, Air/Oil/Water Media, SPDT, 1/8 NPT Male, 1/4 Blade, Black, Automatic Operation, IP54 Rated - Image 5](https://m.media-amazon.com/images/I/51LSGx5+ONL.jpg) ## Questions & Answers **Q: Is this normally open or closed? How do you switch it from one or the other?** A: Hi Richard, The swith has three terminals: NO-C-NO. so it either can be normally open or nomally closed. how you want to switch depending how you connect it. Hope the info could be useful. Thanks **Q: How many amps is this switch rated for on ac current and is there any data on cycling life. We want to use it to control a motor load ?** A: to be safe this switch should only handle no more than 2 amp, that would include inrush as in motor starting. You would need to use a control relay and possibly a transformer to use this switch to control your motor. **Q: What is the differential of the switch? If NO contacts close at 10 psi, at what pressure do they open again?** A: There is no differential, in your example I would say the contact would open at 9.9 psi. It’s almost instantly reactive when the pressure moves beyond the set point. **Q: mounting threads?** A: 1/8" -27 NPT - standard to most oil pressure sensors / switches ## Customer Reviews ### ⭐⭐⭐⭐⭐ Happy to find this switch for my 255 Massey-Ferguson *by Y***U on Reviewed in Canada on 15 October 2023* Was looking for a switch to shut down the electricity on my gauges when the tractor is stopped. Work flawlessly! ### ⭐⭐⭐⭐⭐ Used for water injection on an rx7 *by B***L on Reviewed in the United States on 23 February 2019* Works great for booster activated switch on turbo vehicle. Adjustable with Allen wrench. I've adjusted as low as 5 or so psi and as high as 20 psi but I think it goes higher. ### ⭐⭐⭐⭐⭐ Seem decent, trigger PSI was repeatable *by T***M on Reviewed in Canada on 18 March 2022* I’m going to be using these for my oil pressure on my tractor, one to drive the gauges/hour meter and the second for an alarm.I took these switches into work and used probably $20K worth of calibrated testing equipment to test them out, I must say it’s handy having those types of tools at my disposal and this is what I foundOut of the box one was set for 10.8 PSI and the other 10.2 but both were very repeatable, ie I could go above pressure and they’d trigger, then drop below until they dropped out then bring it back up again and would trigger at the same pressure. I wanted a bit higher so adjusted them both to 11.5PSI and again they repeatedly would trigger at the same value.Adjustment was easy, just an Allen wrench keyI haven’t had a chance to try them in the tractor yet but so long as they don’t leak, very happy with them ## Frequently Bought Together - LEFOO Adjustable Air Pressure Switch 10psi ± 2psi Pressure Control for Air Oil Water and Vacuum Applications - 1/4" NPT Brass Electric Solenoid Valve 12VDC Normally Closed VITON (Standard USA Pipe Thread). Solid Brass, Direct Acting, Viton Gasket Solenoid Valve by U.S. Solid. - MEAN WELL RS-75-12 AC to DC Power Supply, Single Output, 12V, 6 Amp, 72W, 1.5" - 323599 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/263317625-lefoo-lf20-extended-duty-pressure-switch-10psi-2psi-adjustable-air](https://www.desertcart.tn/products/263317625-lefoo-lf20-extended-duty-pressure-switch-10psi-2psi-adjustable-air) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-30*