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Clamp On, Clamp Off
Call it the Jaws of Juice, our 600V AC/DC, 600A digital Clamp-On Meter. Functions include amperage, voltage, continuity, resistance and data hold. Resistance measurement to 2000 ohms, 1-1/2" x 3/4" display screen, auto-off for longer battery life. Good for Category I, II, and III apps. Includes 9V battery, test leads, and carrying case. Sells on less-generous on-line sites for $69.95. Made for Greenlee/Textron®. UL.
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39136 CLAMP-ON METER |
Electronics Lab In A Box
And it's a pretty compact box, considering that it's holding a 2-channel oscilloscope, function generator, spectrum analyser, recorder, and bode plotter. Just plug the single 8" tall x 2-1/2" wide x 7" deep PCSGU250 device from Velleman Instruments® into the USB port on your PC. Input range: 10mV to 3V/division (sensitivity: 0.3mV). Input coupling: DC, AC and GND. Maximum input voltage:30V (AC and DC). Markers for amplitude/voltage and frequency/time. Storage of display and data. Requires Windows 2000, XP or Vista. Call for additional specs.
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93782 PC OSCILLOSCOPE |
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Be A Meter Reader
And save a bundle. The "Kill-A-Watt" plugs into a wall outlet and accepts the power line for any devices or appliances that draw up to 1875 watts. Identifies energy eaters, tracks efficiency and costs over time, and checks on your electricity provider by monitoring voltage, current (amps), watts, kilowatt hours, frequency (Hz), volt amps, power factor, and elapsed time. Measures 5-1/8" x 2-3/8" x 1-7/16" with a 1-3/4" x 11/16" LCD screen. You may never use a waffle iron again.
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93575 KILL-A-WATT |
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Peltier Heat Pump
High tech comes to Am Sci & Surp!! It is here in the form of a Peltier junction, a thermo-electric device that translates electric power into heat, and perversely, into cool. Apply current @ 3-12 VDC to the gizmo and it extracts thermal energy from one face, thereby cooling it. The heat is dumped onto the other face, thereby heating it. Please note: you must use a heat sink on the hot side or the junction will fry itself, since it can quickly create a 65° C temperature differential in a no load situation. Stack two, or build a cascade to increase the thermal differential created. Or run it backwards. Apply heat or cold to the relevant face and produce a current. Amazing for science projects and experiments. Practical for coffee warmers, beer coolers and mini-refrigerator or warming oven applications. Comes with instructions. Large is 1-9/16" sq. x 3/16" thick.
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89143 LARGER PELTIER JUNCTION |
EMF Tester
Here's a cost-effective tester that lets you determine the electromagnetic field around power lines, appliances, computer and communication equipment and industrial devices. The hand-held instrument measures EMF radiation from 30 to 300 Hz. Single axis. The range is 0.1-199.9 mG and 0.01-19.99 uT, with an accuracy of +/- 4%. The 5" x 2-3/4" x 1" plastic case has a 1-3/4" x 3/4" LCD display and a switch to toggle between micro Tesla and milli Gauss. It's quick, easy and reliable, and when you see the EMF around your old monitor, it will give you one more reason to buy the new one you want!
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92254 EMF TESTER |
Does This Count?
Does it ever. Our 8-segment LCD digital counter registers up to (99) million, and is powered an internal 3V Panasonic lithium battery. Has count and reset terminals on the bottom, triggered by a short pulse between 5 and 30VDC, with an easy-to-read legend on the back. It's a compact 2-1/16" deep x 1-7/8" wide x 15/16" tall (including clearance for the terminals and a stand-off on the back) and includes an instruction sheet. Made by Redington (part # 7600-731DC) in the USA.
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37806 DIGITAL COUNTER |
Portable Oscilloscope
The Velleman HPS10 Personal Scope isn't some graphical multimeter -- it's the complete, portable, affordable oscilloscope you've been waiting for! The 10MHz oscilloscope has an analog bandwidth of up to 2mhz. It has 5mV to 20V/div sensitivity in 12 steps, and a 200ns to 1 hour/div time base in 32 steps, full automatic setup, and 5 different trigger modes. It measures dBm, dBV, DC and rms, has signal markers for Volt and Time, and 2 memories to store signals. It has an X and Y position shift signal, DVM readout with x10 option, and audio power calculation (rms and peak). Easy to use and, with a high-contrast LCD display (128 x 64 pixels), easy to read. Accurate enough for professional use on automotive and audio equipment, digital signals and various types of sensors, but priced low enough for educational and hobby applications. Requires (5) "AA" batteries or a 9V adapter (not included).
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92223 OSCILLOSCOPE |
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Step On It
Perfect for hands-on hobbyists. Foot-pedal speed controls free up your paws to do the real work. This one's for 120VAC devices, and ideal for machines using approx 200W or less. Measures 5" x 3" x 2-1/4" tall, with a 6-foot cord that plugs into the wall and a grounded female plug for your sewing machine, rotary tool, scroll saw, or, if you really make a lot of banana Daiquiris, blender.
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93239 FOOT PEDAL |
Digital Multimeter
3-1/2 digit LCD electrical multimeter with a max reading of 1999. Measures (5) ranges of DC, (2) ranges of AC voltage both to 500 V, (5) ranges of resistance to 200K ohms, DC current to 10 Amp., diode test, transistor and battery test. A pocket sized 2-7/8" x 5-3/4" x 1-1/2", it comes complete with test leads and 9 volt battery. The best value for this size we have seen.
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89416 DIGITAL MULTIMETER |
MiniMultiMeter
Our pocket-sized multimeter measures a tiny 3-5/8" x 1-3/4" x 1" thick, with a 3-1/2 digit display on a 1-1/4" x 9/16" LCD screen. Will measure up to 500VAC, 100VDC, current from 200uA up to 10A, resistance up to 2000K ohms, and will also test diodes and transistors. Comes with (2) 24" test leads and a battery to power it. Teeny price to match its size. Great for science fair projects.
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93148 MULTIMETER |
Ten Roentgens & Counting…
If Madame Curie had owned this, she'd be alive today. (She'd be more than 140 years old, of course, but still….) Our Radex RD1503 digital radiation meter measures in uSieverts/hour and uRoentgens/hour in (3) different ranges each. Indicates the number of cycles of observation and has an audible mode as well as a 1-3/4" x 1-1/8" LCD. The unit measures 4" x 2-1/4" x 1" and comes with a detailed manual and technical certificate. Made in Russia.
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93647 RADIATION METER |
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