--- product_id: 219868027 title: "Laser Module Tester Digital PWM Wave Pulse 0.01%-100% Output, 0%-100% Input, 0Hz-20KHz VPP 3.3V-12V Digital Signal Generator Adjustable Frequency Duty Cycle" brand: "neje" price: "€ 43.16" currency: EUR in_stock: true reviews_count: 3 url: https://www.desertcart.es/products/219868027-laser-module-tester-digital-pwm-wave-pulse-0-01-100 store_origin: ES region: Spain --- # 0.01%-100% PWM precision 0Hz-20KHz adjustable frequency 3.3V-12V versatile voltage range Laser Module Tester Digital PWM Wave Pulse 0.01%-100% Output, 0%-100% Input, 0Hz-20KHz VPP 3.3V-12V Digital Signal Generator Adjustable Frequency Duty Cycle **Brand:** neje **Price:** € 43.16 **Availability:** ✅ In Stock ## Summary > ⚡ Master your laser precision with NEJE’s ultimate PWM tester! ## Quick Answers - **What is this?** Laser Module Tester Digital PWM Wave Pulse 0.01%-100% Output, 0%-100% Input, 0Hz-20KHz VPP 3.3V-12V Digital Signal Generator Adjustable Frequency Duty Cycle by neje - **How much does it cost?** € 43.16 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/219868027-laser-module-tester-digital-pwm-wave-pulse-0-01-100) ## Best For - neje enthusiasts ## Why This Product - Trusted neje brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Mode Display:** Real-time monitoring of temperature, PWM, and manual control status keeps you in command. - • **Wide Frequency Range:** Adjust frequency seamlessly between 0Hz and 20KHz to match any laser module requirement. - • **Precision PWM Control:** Fine-tune laser output from 0.01% to 100% duty cycle for ultimate customization. - • **Robust Voltage Support:** Supports 3.3V to 12V input ensuring broad compatibility and stable performance. - • **Plug & Play Compatibility:** Designed for NEJE laser modules (20W, 7W, 3500mW) with easy 4-pin connection for quick setup. ## Overview The NEJE Laser Module Tester is a digital PWM wave pulse generator offering ultra-precise duty cycle control from 0.01% to 100%, adjustable frequency from 0Hz to 20KHz, and supports input voltages between 3.3V and 12V. It features a 3-mode display showing temperature, PWM, and manual control, designed for seamless integration with NEJE laser modules, enabling professionals to optimize laser performance with ease. ## Description NEJELaser Module Tester Digital PWM wave pulse 0.01%-100% output, 0%-100% input, 0Hz-20KHz VPP 3.3V-12V Digital Signal Generator Adjustable Frequency Duty Cycle ## Features - Laser Module Test Board: Power input: DC 12V;Output: PH2.0 4pin (12v,GND,PWM/TTL,Temperature) - Mode: 3 modes (off, manual pwm, pwm / ttl in)display 3 kinds of information. Temperature, Pwm display and Manual PWM control. - Easy To Use: It is suitable for assembling in NEJE laser module. Replacement of new accessories.You can also freely combine. With NEJE 20W, 7W, 3500mW laser module. - Package List: 1 x NEJE PWM/Temperature tester board;1 x 4 Pin Cable(1000mm); - High-Quality Service: If you have any questions, please feel free to contact us. ## Images ![Laser Module Tester Digital PWM Wave Pulse 0.01%-100% Output, 0%-100% Input, 0Hz-20KHz VPP 3.3V-12V Digital Signal Generator Adjustable Frequency Duty Cycle - Image 1](https://m.media-amazon.com/images/I/51Y9hf6slTL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It is exactly as it says. Good value. *by D***K on April 19, 2021* It is exactly as it says. Good value. ### ⭐ Cable is only 100mm not 1000mm *by D***E on May 13, 2021* I bought this just for the supposed 1000mm cable it advertises. I didn't even need the board. It came with a cable about 8 inches. I tried to "talk" to NEJE but they barely speak English. 3 times they aid the were sending me the 1000 mm cable and 3 times I got another board with a short cable. Just be aware that this has a very short cable, maybe 8 inches and the customer service is terrible. Also takes about 3 or 4 weeks if it isn't in stock, which all 3 times it wasnt, then I receive the wrong thing anyway. The 20 watt laser I bought from them does work well though, however I dont have any other lasers to compare it too. ### ⭐⭐⭐⭐⭐ hope it last a long time *by W***E on August 10, 2021* works great --- ## 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.es/products/219868027-laser-module-tester-digital-pwm-wave-pulse-0-01-100](https://www.desertcart.es/products/219868027-laser-module-tester-digital-pwm-wave-pulse-0-01-100) --- *Product available on Desertcart Spain* *Store origin: ES* *Last updated: 2026-04-24*