For Dads and Grads!
We Put The FUN In Electronics!
The High Tech
Tri-Field Meter and “Ghost Detector”
✔ See electric, magnetic, and RF fields!
✔ Watch the magnetic fields of the earth!
✔ Sense different magnetic poles
✔ Detect RF transmitter fields
✔ Graphical LED display allows you to
“see” the invisible fields
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Call it a Tri-Field Meter, an Electrical, Magnetic, and
RF Detector, a Ghost Detector, or a Tricorder that
even Mr. Spock would like, but what ever you call it,
it works great to detect all three invisible fields!
The TFM3C has three separate field sensors that are user
selectable to provide a really cool readout on two highly
graphical LED bargraphs! Utilizing the latest technology, including Hall Effect sensors, you can walk around
your house and actually “SEE” these fields around you! You will be amazed at what you see. How sensitive is
it? Well, you can see the magnetic field of the earth... THAT'S sensitive!
The technical applications are endless. Use it to detect radiation from monitors and TV's, electrical discharges
from appliances, RF emissions from unknown or hidden transmitters and RF sources, and a whole lot more! If
you’re wondering whether your wireless project or even your cell phone is working, you can easily check for
RF! A 3-position switch in the center allows you to select electric, magnetic, or RF fields. A front panel “zero
adjust” allows you to set the sensors and displays to a known clean “starting point”.
If the TFM3C looks familiar, it’s probably because you saw it in use on the CBS show Ghost Whisperer! It was
used throughout one episode (#78, 02-27-2009) to detect the presence of ghosts! The concept is simple, it is
believed (by the believers!) that ghosts give off an electric field that can be detected with the appropriate
equipment. In the electric mode, the TFM3C’s displays will wander away from zero even though there isn’t a
clear reason for it (not scientifically explainable, aka paranormal!). This would mean something has begun to
give off an electric field. What it was in the Ghost Whisperer was a friendly ghost. What it will be in your
house... who knows!
Makes a great teaching tool too! Learn all about the three types of fields and the sensors needed to detect
them. Runs on 6VDC ( 4 AA batteries, not included).
TFM3C Tri-Field Meter Kit With Case
Hi-Res Elevation Sensor
✔ Elevation resolution to 1/3”!
✔ Pressure resolution to .0001kPa!
✔ 128x64 pixel
✔ USB computer
✔ Built-in Li-Ion battery!
The response to the UP24 was incredible!
Customers from professional land surveyors, mete-orologists, scientists, pilots and hikers to the curious hobbyist were overwhelmed with its sensitivity
and accuracy. Reading realtime elevation to a
third of an inch blew their minds! We made it
even better...introducing the next generation
First, for extended field use, we designed an internal lithium ion power cell and a state of the art
power management system. Now you can charge
it while it’s connected to your USB connection, or
use an external charger! Next we added a “MARK”
feature. This allows storing a single data point
reading when YOU want instead of blindly storing
readings at the selected sample rate from an
external switch (dry or electronic). Data is in
comma delimited form for easy spreadsheet use.
Then we streamlined the controls to make a more
compact profile. The rotary menu navigation dial
has been replaced by contactless proximity buttons for more reliable operation! Just touch your
way through the menus without any dials or
switches! All in a handheld device that weighs
less than 4oz! Visit www.ramseykits.com for
details, there’s just too much to fit here!
UP24B Elevation/Pressure Sens Kit $239.95
UP24BWT UP24B Factory Asmb $299.95
Signal Magnet Antenna
Super Hi-Q ferrite rod antenna
with Faraday shield eliminates
noise from power lines, dim-
mers, static and more! Great results
from 500kHz to 15MHz. Super for AM
broadcast band! Includes power supply.
SM100 Signal Magnetic Antenna Kit
ECG Heart Monitor
Provides a visible and audible display of your heart rhythm!
Variable gain, bright “beat” LED,
and monitor output for display on your scope. Just like the lab! Reusable sensors are included. Req’s 9V batt.
ECG Heart Monitor Kit $44.95
Digital Voice Storage
The Bullshooter-II provides up to 8
minutes of digital voice storage
that can be broken down into 8
separate stored messages! Great for
announcements, etc. Built-in mic plus
external input. Runs on 12VDC or our AC125 PS.
BS2C Digital Voice Storage Kit $89.95
Mini LED Light Chaser
This little kit flashes six high intensity LEDs sequentially in order. Just
like the K80302 to the right does
with incandescent lights. Makes a
great mini attention getter for signs, model trains, and
even RC cars. Runs on a standard 9V battery.
MK173 Mini LED Light Chaser Kit $13.95
Running Light Controller
Controls and powers 4 incandescent
lights so they appear to “travel” back
and forth (Like the hood on KITT)!
Great for the dance floor or promotional material attention getters,
exhibits, or shows. Runs on 112-240VAC.
K8032 4-Channel Running Light Kit
High Power LED Driver
High power LED’s have finally
found their way into the hobbyist
budget, but now you need a driver!
This little board provides the accurate
and constant current need to drive them.
Delivers 350mA or 700mA at a constant current
K8071 High Power LED Driver Kit $14.95
Digital Voice Changer
This voice changer kit is a riot! Just
like the expensive units you hear the
DJ’s use, it changes your voice with a multitude of
effects! You can sound just like a robot, you can even
ad vibrato to your voice! 1.5W speaker output plus a
line level output! Runs on a standard 9V battery.
MK171 Voice Changer Kit $14.95
Steam Engine & Whistle
Simulates the sound of a vintage steam
engine locomotive and whistle! Also pro-
vides variable “engine speed” as well as
volume, and at the touch of a button the
steam whistle blows! Includes speaker.
Runs on a standard 9V battery.
MK134 Steam Engine & Whistle Kit
Electronic Watch Dog
A barking dog on a PC board! And you don’t
have to feed it! Generates 2 different selectable barking dog sounds. Plus a built-in mic
senses noise and can be set to bark when it
hears it! Even includes adjustable sensitivity!
Eats 2-8VAC or 9-12VDC, it’s not fussy!
K2655 Electronic Watch Dog Kit
Laser Trip Senser Alarm
True laser protects over 500
yards! At last within the
reach of the hobbyist, this neat kit uses a standard
laser pointer (included) to provide both audible and
visual alert of a broken path. 5A relay makes it simple
to interface! Breakaway board to separate sections.
LTS1 Laser Trip Sensor Alarm Kit $29.95
Liquid Level Controller
Not just an alarm, but gives you a
LED display of low, middle, or high
levels! You can also set it to sound
an alarm at the high or low condition. Provides a 2A 240VAC rated
relay output. Runs on 12-14VAC or 16-18VDC.
K2639 Liquid Level Controller Kit $23.95
Retro Nixie Tube Clock
Genuine Nixie tubes popular
in the 50’s brought back in
one of the neatest digital
clocks around today! Hand
made teak maple base, 12/24 hour format, soft fade-out, auto-dim, and a crystal time base at 20ppm!
IN14TM Teak Maple Nixie Tube Clock Kit $329.95
Electret Condenser Mic
This extremely sensitive 3/8” mic
has a built-in FET preamplifier! It’s
a great replacement mic, or a perfect
answer to add a mic to your project.
Powered by 3-15VDC, and we even include coupling
cap and a current limiting resistor! Extremely popular!
MC1 Mini Electret Condenser Mic Kit $3.95
Sniff-It RF Detector Probe
Measure RF with your standard
DMM or VOM! This extremely sensitive RF detector probe connects to
any voltmeter and allows you to
measure RF from 100kHz to over 1GHz! So sensitive it
can be used as a RF field strength meter!
RF1 Sniff-It RF Detector Probe Kit
Need to “perk-up” your counter or
other equipment to read weak signals? This preamp has low noise and
yet provides 25dB gain from 1MHz to well
over 1GHz. Output can reach 100m W! Runs on
12 volts AC or DC or the included 110VAC PS. Assmb.
PR2 Broadband RF Preamp $69.95