ERICKHILL RT-100S vs Smart Sensor AR824 — Which Should You Buy?

Side-by-side comparison of ERICKHILL RT-100S and Smart Sensor AR824. We compare specs, performance, and value to help you decide.

Updated 2026-03-09 Independently reviewed
ERICKHILL RT-100S

ERICKHILL RT-100S

8/10
$45 /one-time
VS
Smart Sensor AR824

Smart Sensor AR824

7.4/10
$35 /one-time

Feature Comparison

Feature ERICKHILL RT-100S Smart Sensor AR824
Field Types RF, Magnetic, Electric RF, Magnetic, Electric
RF Range 50 MHz – 3.5 GHz 50 MHz – 3.5 GHz
Display LCD —
Battery 9V —
Weight 170g 120g
Price Budget —
Size — Pocket
Auto-ranging — Yes
Data Hold — Yes

ERICKHILL RT-100S

Pros

  • ✓3-in-1 at budget price
  • ✓50 MHz–3.5 GHz
  • ✓LCD display
  • ✓Simple operation
  • ✓Good for beginners
  • ✓Lightweight
  • ✓Battery included

Cons

  • ✗Lower accuracy
  • ✗No data logging
  • ✗Basic build

Smart Sensor AR824

Pros

  • ✓Pocket-sized
  • ✓3-in-1
  • ✓Auto-ranging
  • ✓Data hold
  • ✓Portable
  • ✓Low price
  • ✓Simple

Cons

  • ✗Small display
  • ✗Basic accuracy
  • ✗Limited range

Our Verdict

ERICKHILL RT-100S

Best budget EMF meter. Get started with EMF detection without breaking the bank.

Special Deal Available — See Offer

Smart Sensor AR824

Best pocket meter. Toss it in your bag for quick EMF checks anywhere.

Limited Offer — Check Today's Price

Our Methodology

We test each meter against known sources and compare accuracy. No manufacturer has editorial influence.

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