Payment & Shipping Terms:
|Shipping:||By DHL, FEDEX, TNT ,UPS,EMS Ect.|
security door buzzer
High Quality DIP Magnetic / Electromagnetic Buzzer External Drive / Without Circuit with all size
1. We have professional technical support team to support our customers
2. If you have any question for the technology of our products,please Email to us and we will reply to you immediately
1. Reply your enquiry in 24 working hours.
2. Experienced staffs answer all your questions in professional and fluent English.
3. Customized design is available.
4. Exclusive, considerate and unique solution can be provided to our customers by our well-trained and professional engineers and staffs.
Operating Voltage: 2.0-30v
Coil Resistance : 16 ± 3Ω
Sound Output : 85dB
Shot lead time & Low Price.
Alarm Medical equipments
Audio and Video Products
Payment and Shipping:
1, Lead time about 3~5 days.
2, Payment: T/T; Western union; Paypal .
3, Shipping: by DHL, Fedex, TNT, UPS, EMS ect
After any following tests the part shall meet specifications without any degradation in
appearance and performance except SPL. SPL shall not deviate more than -10 dB
from the initial value
The part shall be subjected to 96 hours at 25±10℃. Input rated voltage
Resonant frequency, 1/2 duty Square wave.
2.High Temperature Test
The part shall be capable of with standing a storage temperature of +85℃ for 96 hours.
3. Low Temperature Test
The part shall be capable of with standing a storage temperature of -40℃ for 96 hours.
Temperature:+40℃±3℃ Relative Humidity:90%～95% Duration: 48 hours
and expose to room temperature for 6 hours
5.Temperature Shock Test
Temperature:70℃ /1hour→ 25℃/3hours→-30℃/1hour→ 25℃/3hours (1cycle)
Total cycle: 10 cycles
Standard Packaging From 1.2m(Drop on hard wood or board of 5cm thick,
three sides, six plain.)
7. Vibration Test
Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axes
As this product is not protected from foreign material entering, please make sure that any foreign materials (e.g. magnetic powder, washing solvent, flux, corrosive gas) do not enter this product in your production processes. The functional degradation (e.g. SPL down) may occur if foreign material enter it.
Electrical And Acoustical Measuring Condition
2. Recommended Test Circuit
Contact Person: Ms.Angel Sun