3.2-5.5V HC-12 433Mhz SI4438 Wireless Serial Port Module 1000m Replace Bluetooth
$ 16.17
Description
3.2-5.5V HC-12 433Mhz SI4438 Wireless Serial Port Module 1000m Replace Bluetooth. Module size: 27.8mm 14.4mm 4mm. Module supporting software upgrades. Default idle current: 16 ma (modules in different working mode of different current). Otherwise deal is final. All products are quality checked. 3.2-5.5V HC-12 433Mhz SI4438 Wireless Serial Port Module 1000m Replace Bluetooth Item Description Descriptions: Power supply voltage : 3.2 V -- 5.5 V.(if the modules working long hours in emission state, suggested that when the power supply voltage is greater than 4.5 V , you need concatenating a 1N4007 diode to avoid module built-in LDO got fever) Default communication distance : about 600 m (communication distance is adjustable up to 1000 m, air baud rate 5000 BPS). Default idle current: 16 ma (modules in different working mode of different current). Module size: 27.8mm*14.4mm*4mm. Operating frequency range (433.4 473.0 MHz, as many as 100 communication channel) maximum 100 mw fired power (can be set) Module supporting software upgrades. Default factory Settings: working mode FU3, baud rate 9600 BPS, communication channel CH001 (433.4 M) Package Included: according buyer choose Payment Mathod Returns Policy Feedback Payment Mathod 1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase. 2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer. 3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner. 4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication with us. Ple Returns Policy 1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase. 2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer. 3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner. 4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication Feedback When you satisfied with our product and services please leave us positive feedback. If a problem occurs, contact us immediately with any email request. Just contact us using the " Ask the seller a question" link on eBay.We will maill bakc within 24hours
