--- product_id: 123495983 title: "BOSI Digital Voltage Tester Pen BS450229 AC / DC Continuity Meter 12-220v, LCD Display Electrical Instruments" brand: "bosi" price: "€ 0.39" currency: EUR in_stock: false reviews_count: 8 url: https://www.desertcart.hr/products/123495983-bosi-digital-voltage-tester-pen-bs450229-ac-dc-continuity-meter store_origin: HR region: Croatia --- # 12-220V AC/DC range Compact 5.12-inch size Battery-free operation BOSI Digital Voltage Tester Pen BS450229 AC / DC Continuity Meter 12-220v, LCD Display Electrical Instruments **Brand:** bosi **Price:** € 0.39 **Availability:** ❌ Out of Stock ## Summary > ⚡ Power up your toolkit with precision and portability! ## Quick Answers - **What is this?** BOSI Digital Voltage Tester Pen BS450229 AC / DC Continuity Meter 12-220v, LCD Display Electrical Instruments by bosi - **How much does it cost?** € 0.39 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/123495983-bosi-digital-voltage-tester-pen-bs450229-ac-dc-continuity-meter) ## Best For - bosi enthusiasts ## Why This Product - Trusted bosi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ergonomic & Durable:** Soft-grip handle with robust polycarbonate build ensures comfort and longevity during daily professional use. - • **Ultra-Portable & Ready:** Lightweight, pocket-sized design fits effortlessly in your toolbox—no batteries needed, always on demand. - • **Precision Voltage Detection:** Accurately measures AC/DC voltage from 12 to 220V with clear LCD readout for confident diagnostics. - • **User-Friendly Digital Display:** Easy-to-read LCD screen dynamically shows voltage levels, eliminating guesswork on the job. - • **Inductance Break-Point Testing:** Innovative fingertip control reveals wire breakpoints instantly with intuitive ⚡ symbol feedback. ## Overview The BOSI Digital Voltage Tester Pen BS450229 is a sleek, battery-free electrical instrument designed for professionals needing quick, accurate AC/DC voltage readings from 12 to 220V. Featuring an intuitive LCD display and inductance breakpoint detection, it combines ergonomic design with advanced functionality in a compact 5.12-inch form factor—perfect for on-the-go troubleshooting and maintenance. ## Description Voltage Reading Display Instructions: 1.Display 12, indicating voltage between 9V-12V2.Display 12-36, indicating voltage between 12V-36V3.Display 12-36-55, indicating voltage between 36V-55V4.Display 12-36-110, indicating voltage between 55V-110V5.Display 12-36-110-220, indicating voltage above 220VNote: The final value shows on the screen is the voltage of the conductor. Conductor Test: Probe the live metal contact (wire or terminal) with screwdriver end. Touch the DIRECT key to test Voltage. Then the voltage level will be indicated on the digital display on a rising scale: 12V,36V,55V,110V,220VDescription: 1. This meter is applicable to directly measure AC/DC voltage ranging from 12 to 220V2. Indirectly detect null line, phase line and continuity of AC/DC voltage.3. Besides, it can also be used to test the continuity of non-conductor.4. All operations work by two keys. 5. Soft handle for comfortable and easy grips. 6. Digital LCD display. Specification: Product Name: BOSI Voltage Tester PenModel: BS450229Material: Plastic, 45# SteelVoltage:12-220VTip Size (Approx.):3mmTotal Size (Approx.):130 x 19 x 13mm / 5.12" x 0.75" x 0.51"(L * W * H) Note: This Voltage Tester doesn’t feature with ALARM function. It only tests voltage and breakpoint. When INDUCTANCE BREAK-POINT TEST, the insulator of the wire must be within 3mm. Otherwise it will affect the sensitivity and test results.Keep it dry when you use it to test voltage.The display screen only shows when it is detected the current. In the absence of current, the display will not show anything.Only need to touch the key when test. Don’t need to press it down.Package Content: 1 x Voltage Tester Pen Review: It not show up digits when test voltage. - Not accurated Review: Of course it doesn't work - Doesn't do anything, can't push any buttons, display shows nothing. Q&A says no batteries required and then says later (2) AAA batteries required. No place for batteries that i can find without prying it apart. Would have given no stars but can't do that I guess. ## Features - MEASURING RANGE - The default AC voltage measurement range is 12 - 220V, it meets the need for selecting the most suitable sensitivity before testing on different occasions. - LIGHTWEIGHT and PORTABLE - No battery needed, always ready to use. With small size, it is easy to store in tool box and carry. - INDUCTANCE BREAK-POINT TEST – Touch the INDUCTANCE key with finger, the tip approaches the wire, and a "⚡" symbol appears. Moves the tip along the wire, if the "⚡" symbol disappears, this is the breakpoint. - VOLTAGE READ - Touch the DIRECT key with finger, and the voltage pen inserts the copper core into the conductor. The final value on the screen is the voltage of the conductor. - NOTE – When testing, you cannot touch two test keys at the same time. Otherwise it will affect the sensitivity and test results. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07PGNWHK2 | | Brand Name | BOSI | | Color | Yellow | | Customer Reviews | 2.8 2.8 out of 5 stars (62) | | Item Dimensions | 5.12 x 0.78 x 0.59 inches | | Manufacturer | B BOSI TOOLS | | Model | BS450229 | | Power Source | Battery Powered | | Style Name | Digital | | UPC | 692232605391 | ## Product Details - **Brand:** BOSI - **Color:** Yellow - **Item dimensions L x W x H:** 5.12 x 0.78 x 0.59 inches - **Power Source:** Battery Powered - **Style:** Digital ## Images ![BOSI Digital Voltage Tester Pen BS450229 AC / DC Continuity Meter 12-220v, LCD Display Electrical Instruments - Image 1](https://m.media-amazon.com/images/I/21zaekhjmAL.jpg) ## Customer Reviews ### ⭐⭐ It not show up digits when test voltage. *by D***D on August 23, 2019* Not accurated ### ⭐ Of course it doesn't work *by A***R on June 27, 2019* Doesn't do anything, can't push any buttons, display shows nothing. Q&A says no batteries required and then says later (2) AAA batteries required. No place for batteries that i can find without prying it apart. Would have given no stars but can't do that I guess. ### ⭐⭐⭐⭐⭐ works good *by D***L on November 9, 2019* inexpensive small tool, works good for my shop, I have 3 testers and 20 dollors from HD, 200 bucks from pro store. that is pro level tester for sure. this one you pay 7 bucks, I use as screw driver and test voltage at same time. you need read manual carefully. display a little bit small. it is fine. --- ## 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.hr/products/123495983-bosi-digital-voltage-tester-pen-bs450229-ac-dc-continuity-meter](https://www.desertcart.hr/products/123495983-bosi-digital-voltage-tester-pen-bs450229-ac-dc-continuity-meter) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-21*