Technical parameters Measuring condition Part shall be measured under a condition (Temperature: 5锝?5鈩? Humidity: 45%锝?5%R.H., Atmospheric pressure: 860 锝?060hPa) unless the standard condition (Temperature: 25卤3鈩? Humidity: 60卤10%R.H. Atmospheric pressure: 860 锝?060hPa) is regulated to measure. 1Rated Voltage5VDC 2Operating Voltage3-7VDC 3Rated CurrentMax.30mA, at 5VDC 4Sound Output at 10cmMin.85dB, at 5VDC 5Resonant Frequency2700卤300 Hz 6ToneContinuous 7Operating Temperature-20- +70鈩?/p> 8Storage Temperature-30 - +80鈩?/p> 9RoHSYes 10WeightApprox 1.5g DRAWING & DIMENSION * Housing Material: Black PBT Tolerance: 卤0.5mm Except Specified Packing 100 pcs/tray and 5000 pcs/carton Application Delivery, shipping and service Advantage 1. Extensive production experience: We are specialized in Buzzer, Speaker Alarm and Ultrasonic sensor with an experience of 25 years 2. Strict Physical/Chemical testing procedures: Meeting the requirements of the product design and process, providing reliable testing data. 3. Delivery time: about 25~30 days after order details and production confirmed. FAQ Q锛?/strong>What's your lead time? A: sample order 3-7 working days; bulk order 15-25 working days, it will depends on the specific orders. Q: What's your warranty terms? A: We offer different warranty time for different products. Please contact with us for detailed warranty terms. Q: How many square meters of your factory? A: More than 10000 square meter. Q: Do you have QC department? A: Yes, we have 10 QC personsMagnetic Buzzer manufacturers website:http://www.czfhds.com/magnetic-buzzer/