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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