SKU: 90018278988

Photoelectric Effect Planck's Digital Meters

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Description

Photoelectric Effect Planck's Digital MetersThe Photoelectric Effect Planck's Digital Meters device enables precise measurement of current and voltage, making it ideal for experiments related to the photoelectric effect and the study of Planck's constant in physics. A. Lamp and Filters The Photoelectric Effect Planck's Digital Meters include two displays: one shows the current through the Photo Tube in 0. 1 nanoamps, while the other shows the backing volts required to bring the current to zero.

The Photoelectric Effect Planck's Digital Meters device enables precise measurement of current and voltage, making it ideal for experiments related to the photoelectric effect and the study of Planck's constant in physics.

A. Lamp and Filters

The Photoelectric Effect Planck's Digital Meters include two displays: one shows the current through the Photo Tube in 0.1 nanoamps, while the other shows the backing volts required to bring the current to zero. These simultaneous readings allow for faster and less confusing experiments without the need for switching. The traditional method of using a white light source and color filters is used as the light source.

Kit Includes:

  • 1 Photo-Electric Effect instrument, runs from 9V transistor battery
  • 1 9V battery, type #216
  • 1 Lamp as light source, 12Volt, 25 Watt, mounts on rear of unit
  • 1 set of 5x Color filters, calibrated in nanometers wavelength
  • 1 set 4x Apertures to set the quantity of light from the light source

Aperture orifices: 7mm, 10mm, 14mm, and 20mm diameters One test sheet and Experiment Sheets for using the instrument are included.

Read Instruction Sheet

B. 5 LEDs

Kit Includes:

  • Set of 5x LEDs of specific wavelength mounted on a small panel with cable & plug, mounts on the rear of the instrument. The LED wavelengths are indicated on a label on the rear face of the instrument
  • Experiment sheets for using the instrument

Read Instruction Sheet

Brand: IEC

Product Code Description Weight Dimensions (lwh/mm)
SE.AP2341-002 Lamp and Filters 1.3kg 272 x 160 x 110
SE.AP2342-001 5xLEDs 1.2kg 272 x 160 x 110
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SKU: 90018278988

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4.1 ★★★★★
Based on 9 reviews
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Product Reviews
D
Verified Purchase
Deholle
Waukegan, US
★★★★★ 4
Tuffy Desert Phrog vs Lola
Color: Green Leaping Phrog, Color: Green Leaping Phrog
Just a little background about my dog. Lola is a 5 year old corgi-terrier mix with jaws of steal. Lesser stuffed toys have met death in under 5 minutes. Tennis balls last less than a day. Rope toys that do not have frayed ends might possibly last a week (frayed ends never stand a chance). The only toys that she has not managed to destroy are her Kong, a Kong bone, and a racquet ball. I figured I would document the life span of Phrog (Tuffy Scale: 9) before making my final judgement on it’s durability. Day 1 - Phrog Arrives! Lola was very excited about the arrival of Phrog and immediately went into destruction mode. Phrog did sustain a little damage before we were able to bribe her to drop Phrog and get her understand that he was more fun to play fetch with than to mutilate. The white you see in the picture is not stuffing, but the second layer of defense for the toy. The fact that my living room is not full of stuffing and I didn’t have to pry a squeaker out of my dog’s mouth, I’d say Phrog wins the Day 1 challenge. Day 9 - Phrog has sustained a little more damage, but not anything life threatening. His side wound is a little bit larger and one of his eyes is half ripped off. For safety reasons, I am going to finish removing the damaged eye and some loose thread from various places. Other than that, Phrog is still holding up and holds top toy spot. I have also found him very useful for dealing with anxiety; the squeaker can often distract her from her stressors and Phrog takes the abuse of her frustrations. Day 16 - Phrog is starting to show signs of mortal wounds. Lola has made it through the thicker layer around his arm and I can see the stuffing. It is only a matter of time before gets all the way through. Day 60 - Phrog still lives!!! I have done some surgery on Phrog to reinforce the fabric around his arms, but Franken-Phrog is still the favorite of all of the toys. She will even get brave enough to rescue Phrog from the evil vacuum when he is kidnapped and tortured. I am thinking about purchasing Phrog II for the inevitable day when Phrog goes off to the pet toyland in the sky, but for now, there is only one Phrog for Lola.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 6, 2018
M
Verified Purchase
michael parsley
Omaha, US
★★★★★ 5
Super tough
Color: Red Warthog
My dogs love these toys!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Long lasting play toy!
Color: Multicolor
Tuffy toys in general are great and they are a pretty good deal on Amazon. They are not indestructible, and if your dogs use them as chew toys they will eventually break through. My dogs have had this Armadillo since Christmas (and they do chew on it some) and the only thing missing is an ear. They like to play tug-of-war with it a lot. This is a bigger toy, but even my forty pound dog plays with it. I would not recommend this toy for dogs smaller than Border Collie size. You can make these Tuffy toys last longer if you don't allow your dogs to chew them--when your dogs starts chewing on non-chew toys trade them for a chew toy and when you catch your dog chewing on a chew-approved toy reward them for chewing. Eventually your dog will catch on and realize that if they want to chew there are certain toys that are allowed for that. In addition to being a great play toy this is a pretty cute toy too!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 30, 2015
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 1
Not Tuff
Color: Black Yellow Phrog, Color: Black Yellow Phrog
Absolutely terrible and not “tuff” at all. My chocolate lab had this thing destroyed in less than two hours. I would not recommend these for the price.
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Reviewed in the United States on April 11, 2026
C
Verified Purchase
Carrie Ann Moore
Pawtucket, US
★★★★★ 3
Cute but Not Durable
Color: 2PK Green Leaping Phrog
⭐️⭐️⭐️⭐️ Cute but Not Durable Super cute toy—my dogs loved it right away! Unfortunately, they chewed the head off within a few hours. I ordered a second one because they were so into it, but the same thing happened again. I won’t be ordering a third, but they still play with their two headless frogs. So while it’s not the most durable, it definitely kept them entertained!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2025

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