SIGNALPEN™
The Pocket-Size RF Detector — No Batteries Required
Instantly see RF from 60 Hz to 1.2 GHz (or up to 6 GHz model) — detect milliwatts to kilowatts with one simple tool that fits in your shirt pocket.
See RF Energy. Instantly.
The SIGNALPEN™ is an RF detector that turns invisible energy into visible light. Whether you’re working on antennas, Wi-Fi systems, IoT devices, or RFI troubleshooting, this pencil-size tool gives immediate confirmation of signal presence — without batteries, meters, or power cords.
- Detects RF via direct contact or inductive pickup
- Responds to signals from milliwatts to kilowatts
- Two versions: 60 Hz–1.2 GHz (SIGNALPEN) and 2.4–6 GHz (SIGNALPEN-WIFI)
- Rugged construction — built to withstand lab or field use
- Designed and assembled in the USA
Why Technicians Love It
🎯 No Batteries Ever
Powered entirely by RF energy — ready whenever you are.
📡 Wide Spectrum
Detects from 60 Hz to 1.2 GHz (or 6 GHz model) — from HF through Wi-Fi bands.
🧰 Multi-Use Tool
Perfect for ham operators, engineers, educators, and installers.
Applications
- Verify antenna output and coax feed lines
- Detect common-mode RF on cables
- Check RF amplifier stages and filters
- Identify RFI sources in homes, labs, or studios
- Demonstrate electromagnetic energy in classrooms
Compare SIGNALPEN™ Models
| Model | Frequency Range | Detection Range | Typical Uses |
|---|---|---|---|
| SIGNALPEN | 60 Hz – 1.2 GHz | mW – kW | Ham stations, HF/VHF/UHF gear, coax checks |
| SIGNALPEN-WIFI | 2.4 – 6 GHz | mW – W | Wi-Fi, IoT devices, microwave systems |
What Users Are Saying
“I found a stray RF leak on my amplifier feedline in under 10 seconds — with a tool that fits in my pocket! Every ham should have one.”
— Bob K., W6XYZ • San Diego CA
Ready to See RF?
Order the SIGNALPEN™ today and experience the simplest way to detect and visualize RF energy.
🔦 Buy Now – Intro Price $49.95Use code SPEN10 for 10% off – limited time offer!
USER MANUAL
