Ramsey Tri-Field Strength Meter Kit TFM3C
TRI-FIELD Meter kit from Ramsey is very useful for radio amateurs. Easy to build!
- Detect Rf from your radio transmitter, computer monitor, or cell phone
- Pick up the field from magnets around your house, even the earth
- "See" the charge on a staticky hair brush or comb
- Learn how to use electronic parts as sensors
- Runs on 4 AAA batteries (not included)
