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Water level indicator with audio alarm


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Hello Hotwaterwizard!

Thanks for responding.
The first simple circuit appeals to me as a newbie.

Would you please clarify the foll:

1) What is the wattage of R2, 2.2 meg?
2) Is sonalert buzzer same as a piezo buzzer. Can we use the latter?
3) Can we use a 9v, 500 ma DC power supply instead of a battery?
4) Will there be any unsafe leakage current into the water?
5) What kind of probes would you suggest for the high level water tank ....and what kind of cables to connect to the circuit?

Thanks in advance!

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Sound Boxes


Size 1 3/4" x 1 1/4" x 1/2"
A 1110  each  3.99
N14 Witch Laughter
~ ~ ~ ~ ~
A 1111  each  2.99
N031-08 Sheep
N033-06 Rooster
N035-04 Dog
N036-03 Cow
N037-02 Turkey
N041-08 Frog
N045-04 Ghost
N030-09 Lion
N043-06 Woman Screaming
N038-01 Elephant
~ ~ ~ ~ ~
A 1112 each  3.99
Activated by motion
N917-02 Frog Croaking
N919-00 Bird Chirping
Touch Tone Craft Music Buttons
10672  Each  1.99

Music Buttons measure 1 3/8" x 3/8". Used for making musical cards, scrapbooking, in dolls, stuffed animals, toys, books, clothing and more. Specify tune number listed below for each music button tune.


Popular Tunes Inspirational and Holiday Tunes
  10  It's a Small World    03  Jingle Bells 
  16  Love Story    07  Silent Night
  36 Let Me Call You Sweetheart    09  White Christmas
  40  Over The Rainbow    12  Easter Parade 
  45  Music Box Dancer    13  Happy Birthday
  47 You are My Sunshine    22  Rudolph the Red Nosed Reindeer
  60  Take Me Out To The Ball Game    51  (3 songs) Joy To The World
  75  You Light Up My Life            Wish You a Merry Christmas
  N951-08 Titanic            It Came Upon Midnight Clear
  87-21  God Bless America New!    56  Frosty the Snowman
    59  Peter Cottontail/Easter Parade
Children's Tunes    68  Jesus Loves Me
  08  Brahms Lullaby    87-14 Santa Claus is Coming to Town
  18  Rock A Bye Baby    N973-06 Amazing Grace
  43  Teddy Bear Picnic    N998-01 (3 tunes) Jingle Bells
  48 Twinkle Twinkle              Santa Claus is Coming
  49  Old McDonald Had a Farm              We Wish You a Merry Christmas
  70 Mary Had A Little Lamb 

Blink 'n' Play Music Buttons w/Lights


Each 3.99
See Order number listed below for each touch tone music button. Colorful 3mm Blinking Bulbs. Automatic Shut-Off after each play. Plays 25-55 seconds depending on tune. Music button module is 1 1/2" x 9/16" deep. There is a 5" wire lead between the music module and the lights with 3" between bulbs. The bulbs are easily separated by snapping them apart.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Tune name and order number and Light Colors:
248-107-02 Congratulations (R/Y/G)
248-106-03 Old MacDonald (R/Y/G)
248-115-04 Funeral March Of The Marionettes 
                    (Alfred Hitchcocks's Theme) (R/Y/G)
248-112-07 Farmer In The Dell (R/Y/G)
Bulb Colors: R = Red, Y = Yellow, G = Green

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