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flagProduct From India  
new | JUNIOR SCIENTIST Water Level Indicator
Brand : JUNIOR SCIENTIST
new | JUNIOR SCIENTIST Water Level Indicator
Brand : JUNIOR SCIENTIST
Product Specifications
Educational Objective(s)‎Creative Skills, Imagination Development
Model Number‎NEW 036
Assembly Required‎Yes
Batteries Required‎No
Batteries Included‎No
Colour‎Multicolor
Product Dimensions‎18.5 x 6 x 12 cm; 130 g
Batteries‎1 9V batteries required.
Item model number‎NEW 036
Manufacturer recommended age‎10 years and up
Manufacturer‎JUNIOR SCIENTIST
Item Weight‎130 g
ASINB07H42PMVW
Customer Reviews4.0 4.0 out of 5 stars 1 rating 4.0 out of 5 stars
Best Sellers Rank#238,905 in Toys & Games (See Top 100 in Toys & Games) #20,345 in Learning & Education
Date First Available4 September 2018
ManufacturerJUNIOR SCIENTIST
Item Dimensions LxWxH18.5 x 6 x 12 Centimeters
Generic NameWater Level Indicator
BrandJUNIOR SCIENTIST
ThemeScience
Age Range (Description)Kid
Item dimensions L x W x H18.5 x 6 x 12 Centimeters
Educational ObjectiveCreative Skills, Imagination Development
Product Details
Working Model Project Kit/ Working Experiments. Ideal for Children, School, Learning Project Activity, Understand What, How and Why
Ignite interest in subject and inculcate a scientific attitude. Motivates out-of-box thinking imagination and inquisitive mind. It channelizes energy of children in a focussed direction
All of Junior Scientist products are unique and handmade. We work by designs and Endeavour to create like products
Children can use their Creativity and Understand fundamentally
Principle of Working! Provides joyful and meaningful learning experience. Instils wonder and fascination towards science among young students
Great Gift, as Prize/award in Schools, Birthday Party and functions. Complete assembly instructions with easy Language and Photographs
However the very nature of being individually designed by hand gives raw finishing of the projects since it should look that students have created on its own
Product Ranking
#20345 in Learning & Education
#238905 in Toys & Games
Product Description
Water tank overflow is a common problem which leads to the wastage of water. Though there are many solutions to it like ball valves which automatically stop the water flow once the tank gets full. But being an electronics enthusiastic wouldn’t you like an electronic solution for it? So here is a simple and handy DIY that will guide you to make a circuit which will detect the water level and will raise an alarm upon getting the water tank full or a preset level. Working here we are using Transistor (of NPN type) as a switch. Initially there is no voltage applied to the base of the Transistor Q1 and the Transistor is in off state and no current is flowing through collector and emitter and LED is off. When the water level reaches to point a in the tank, the positive side of the battery gets connected to the base of the Transistor Q1 through the water. So when a positive voltage has been applied to the base of the Transistor Q1, it gets into on state and current starts flowing from collector to emitter. And red LED glows. You can see resistors (R1, R2, R3) at the base of each Transistor, which is used to limit the maximum base current. Generally a Transistor gets its on state fully when a voltage of 0.7 V is applied to the base. There are also resistors (R4, R5, R6) with each of the LEDs, to drop the voltage across LEDs, otherwise led may blow up. Same phenomenon happens when water level reaches to point b. As soon as water level reaches to point b, a positive voltage gets applied to the Transistor Q2, it gets on and current started flowing through yellow led, and LED glows. With same principle, green LED glow when water level reaches to point C.And finally buzzer beeps when water level reaches to D.
Product Description
Water tank overflow is a common problem which leads to the wastage of water. Though there are many solutions to it like ball valves which automatically stop the water flow once the tank gets full. But being an electronics enthusiastic wouldn’t you like an electronic solution for it? So here is a simple and handy DIY that will guide you to make a circuit which will detect the water level and will raise an alarm upon getting the water tank full or a preset level. Working here we are using Transistor (of NPN type) as a switch. Initially there is no voltage applied to the base of the Transistor Q1 and the Transistor is in off state and no current is flowing through collector and emitter and LED is off. When the water level reaches to point a in the tank, the positive side of the battery gets connected to the base of the Transistor Q1 through the water. So when a positive voltage has been applied to the base of the Transistor Q1, it gets into on state and current starts flowing from collector to emitter. And red LED glows. You can see resistors (R1, R2, R3) at the base of each Transistor, which is used to limit the maximum base current. Generally a Transistor gets its on state fully when a voltage of 0.7 V is applied to the base. There are also resistors (R4, R5, R6) with each of the LEDs, to drop the voltage across LEDs, otherwise led may blow up. Same phenomenon happens when water level reaches to point b. As soon as water level reaches to point b, a positive voltage gets applied to the Transistor Q2, it gets on and current started flowing through yellow led, and LED glows. With same principle, green LED glow when water level reaches to point C.And finally buzzer beeps when water level reaches to D.