Thursday, October 18

Solar Electronic Snake Repeller





Solar Electronic Snake Repeller, Snake Control Systems

Solar Snake Repeller is a Solar Powered Electronic Snake Repellent get rid of all poisonous snakes . including:


Brown snakes 
Tiger snakes 
Rattles snakes 
Copperhead snakes 
Garter snakes
The only effective snake control available, Solar snake control products send out signals through the ground every 30 second . The snakes pick this up as a vibration that makes the snakes distinctly uncomfortable, persuading them to leave the area.

Advantages of Solar Electronic Snake Repellents

As they are solar power systems there is no need to spread expensive, potentially dangerous and for the most part ineffective chemicals around your home

This pest control unit is very safe to use around children and animals 
Keeps snakes out 24 hours a day 
Each reptile repellent unit has a range of 15 metres radius (45ft) 
Simple to install 
Does not kill snakes 
The best snake fence to keep any snake away from your home 
Snakes in gardens are quickly removed 
Snake and dog encounters avoided 
Fully enclosed unit operates independent of any other power supply 
Will not harm dogs, cats or any other livestock
If you interested .Please  visit our web :
http://www.kaili-buzzer.com/product/Solar-Electronic-Snake-Repeller.html



Thursday, December 1

Piezo Audio Transducer VS Piezo Audio Buzzer


There are two types of piezo buzzers - transducers and indicators. Transducers consist of a casing, a piezoceramic element and a terminal. In order to operate a transducer, the user must send a square wave signal to the buzzer. Indicators consist of a casing, a piezoceramic element, a circuit board and a terminal. In order to operate an indicator, the user must send the buzzer a specified DC voltage.
Piezo Audio Transducer
 HP1770A  SERIES:    


 Type
UNIT
HP1770A
*Min. Sound Output at 10cm
dB
85
Rated Voltage
 Vp-p
9
Operating Voltage
Vp-p
1~30
Resonant Frequency
Hz
4000±500
*Max. Current Consumption
mA
2
Capacitance at 1,000HZ
pF 
15000±30%
Operating Temperature 
°C
 -20~+70
  Storage Temperature
  °C
-30~+80
  Weight
  g
1.3

Value applying at rated voltage
DIMENSIONS     Unit:mm     Tolerance:±0.5


--------------------------------------------------------------------------------
Piezo Buzzer, Piezo audio indicators

HP2310X   SERIES:    

 Type
UNIT
HP2310AX
HP2310BX
*Min. Sound Output at 10cm
dB
85
85
Rated Voltage
 VDC
12
24
Operating Voltage
VDC
3~24
12~36
Resonant Frequency
Hz
3500±500
3500±500
*Max. Current Consumption
mA
12
12
Tone Nature

Continuous
Operating Temperature 
°C
 -20~+70
  Storage Temperature
  °C
-30~+80
  Weight
  g
6


 




If you interesting this .You can contact us : http://www.piezo-indicator.com



Wednesday, November 30

Piezo vs. Magnetic Buzzers

Piezo Buzzer Characteristics

  • Wide operating voltage: 3~250V
  • Lower current consumption: less than 30mA
  • Higher rated frequency
  • Larger footprint
  • Higher sound pressure level
HP4216AXW  SERIES:    

 Type
UNIT
HP4216AXW12
HP4216AXW24
*Min. Sound Output at 10cm
dB
100
105
Rated Voltage
 VDC
12
24
Operating Voltage
VDC
3~20
8~30
Resonant Frequency
Hz
2900±500
3100±500
*Max. Current Consumption
mA
150
150
Tone Nature

       Continuous
     Continuous
Operating Temperature 
°C
 -20~+70
  Storage Temperature
  °C
-30~+80
  Weight
  g
18

Value applying at rated voltage 
DIMENSIONS     Unit:mm     Tolerance:±0.5



Magnetic Buzzer Characteristics

  • Narrow operating voltage: 1~16V
  • Higher current consumption: 30~100mA
  • Lower rated frequency
  • Smaller footprint
  • Lower sound pressure level

HCM16X   SERIES:   



 Type
 HCM1606X
HCM1612X
 Rated Voltage        (V)
  6
12
 Operating  Voltage  (V)
  4~8
8~15
 Rated Current     (MA)
  < 30
< 30
 Sound Output at 10cm (dB)
> 85
> 85
 Resonant Frequency  (Hz)
2300  ±300
2300 ±300
 Response Time     (ms)
    < 50
< 50
 Operating Temperature  (C)   
-25~+70 
-25~+70    
 Storage  Temperature  (C)
    -30~+80
 -30~+80  
  Weight                (g)
   7
7

Value applying rated voltage (DC)

DIMENSIONS     Unit:mm     Tolerance:±0.5













If you interesting this .
You can contact us : 
http://www.piezo-indicator.com/




What is Piezo Buzzer,Piezo audio indicator ?

The heart of piezo buzzers are a piezoelectric ceramic plate. Piezoelectric ceramics generate electricity when they experience mechanical force and, more important to a buzzer’s function, create force when exposed to an electric field. When the ceramic experiences an alternating voltage, the plate extends and shrinks. It is glued to a fixed metal plate so these forces cause the ceramic to flex, creating the buzzing sound.


If you interesting this .You can contact us :  http://www.piezo-indicator.com/



HP3025XW  SERIES:    


 Type
UNIT
HP3025AXW
HP3025BXW
*Min. Sound Output at 10cm
dB
90
90
Rated Voltage
 VDC
12
12
Operating Voltage
VDC
3~20
3~20
Resonant Frequency
Hz
3500±500
3500±500
*Max. Current Consumption
mA
10
10
Tone Nature

Continuous
Pulse 1-4Hz
Operating Temperature 
°C
 -20~+70
  Storage Temperature
  °C
-30~+80
  Weight
  g
13


Value applying at rated voltage 
DIMENSIONS     Unit:mm     Tolerance:±0.5













What is magnetic buzzer ? Magnetic buzzer HCM1212X ,HCM1205X

Magnetic buzzers use a coil wrapped around a pole. A metal plate is mounted a short distance from one end of the pole. The coil creates a magnetic field in the pole which attracts the plate, but since the plate is fixed the center flexes towards the pole. As the electrical signal varies, the magnetic field varies and the plate vibrates.


If you interesting this .You can contact us :http://www.piezo-indicator.com/



HCM12X  SERIES:        



 Type
 HCM1201X
 HCM1203X
 HCM1205X
HCM1212X
 Rated Voltage        (V)
  1.5
  3
  5
12
 Operating  Voltage  (V)
  1.3~2
  2~5
  3~7
8~15
 Rated Current     (MA)
  < 30
  < 30
  < 30
< 30
 Sound Output at 10cm (dB)
    > 80
    > 80
> 85
> 85
 Resonant Frequency  (Hz)
2300 ± 400
2300 ± 400
2300  ±300
2300 ±300
 Response Time     (ms)
< 50
< 50
    < 50
< 50
 Operating Temperature  (C) 
-10~+50
-10~+50
-25~+70 
-25~+70    
 Storage  Temperature  (C)
  -15~+60
  -15~+60
    -30~+80
 -30~+80  
  Weight                (g)
  2
  2
   2
 2
Value applying rated voltage (DC)



DIMENSIONS     Unit:mm     Tolerance:±0.5







Piezo buzzer Vs. Magnetic Buzzers

Buzzers are a simple and inexpensive way to allow your device to make simple sounds ranging from a click when a key is pressed to a warning tone when readings fall outside of safe ranges. We offer two technologies, piezo and magnetic buzzers, and
it’s important to understand the benefits of each before deciding on the right choice for your device.
How They Work
The heart of piezo buzzers are a piezoelectric ceramic plate. Piezoelectric ceramics generate electricity when they experience mechanical force and, more important to a buzzer’s function, create force when exposed to an electric field. When the ceramic experiences an alternating voltage, the plate extends and shrinks. It is glued to a fixed metal plate so these forces cause the ceramic to flex, creating the buzzing sound.
Magnetic buzzers use a coil wrapped around a pole. A metal plate is mounted a short distance from one end of the pole. The coil creates a magnetic field in the pole which attracts the plate, but since the plate is fixed the center flexes towards the pole. As the electrical signal varies, the magnetic field varies and the plate vibrates.
Which Is Better?
The preferred solution depends on your device’s needs. Piezo buzzers can operate at much higher voltages than magnetic buzzers can. For the same voltage piezo devices use less current. Finally, piezo buzzers put out higher sound pressure than magnetic buzzers. However magnetic buzzers have one big advantage important to manufacturers: size.
Magnetic buzzers have a much smaller footprint than equivalent piezo buzzers. This is a critical feature in mobile devices. Consumers demand smaller and smaller phones, tablets, and other electronics and many modern devices simply can’t spare the room a piezo buzzer needs. A microwave oven might work fine with a piezo buzzer but a device meant to go into a pocket is going to need a magnetic buzzer.
If you are still unsure, then contact us to talk about your device’s needs.