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LED Temperature Humidity Sensor Digit Display RS4 85 Modbus RTU Humidity

Item Description

Description: Temperature and humidity combined sensor AM2320 digital temperature and humidity sensor is a digital signal output has been calibrated. Using special temperature and humidity acquisition technology, ensure that the product has a very high reliability and excellent long-term stability. Sensor consists of a capacitive moisture element and an integrated high-precision temperature measurement devices, and connected with a high-performance microprocessor. The product has excellent quality, super fast response, strong anti-interference ability. Specifications: Working Voltage: DC 5-40V(6.5-28V recommended) Working Current: Digital tube turn off is 5MA(12V), Digital tube turn on is 18MA(12V) Serial Baud Rate: 9600(default), N, 8, 1 How to use: 1. Display "Eror" after power-on. If "Eror" is displayed for a long time, it indicates that the sensor is not connected or is damaged. 2. After 5 seconds, display the temperature or humidity. 3. Trigger "KEY" button to switch the display temperature and humidity.(This parameter is powered down memory). 4. Press and hold the "KEY" button for 3 seconds to turn off or turn on the display.(This parameter is also powered down memory). Package Includes: 1 × Module 1 × External Sensor Note: 1. If the digital tube is turn off after power-on, press and hold the "KEY" button until the digital tube is turn on. 2. With the built-in sensor version (R444A01_A), turn on the display for a long time will let the temperature rise 1-2 degrees Celsius. It is recommended to turn off the digital tube, or use a version with an external sensor (R444A01_B). Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind beforeordering

  • The voltage conversion sensor module is DD4012SA, a high-efficiency and low-heat voltage converter
  • By modifying the RS485 address, up to 247 module s can be connected (More than 16 devices, it is recommended to use RS485 repeater)
  • Temperature and humidity sensor is AM2320
  • RTU protocol, 03 Read, 06 Write
  • Widely used for dehumidifiers, testing and inspection equipment, automotive, automation, gas stations, home appliances, humidity control, medical, and other relevant humidity measurement and control

    • Customer service is our top priority! Please be sure to read the description thoroughly to make sure that this is the item you want before making a purchasing decision. If you have any questions about this item, please contact us via messages before placing your order. We make every effort possible to accurately describe and depict the items. Please be aware that slight variations in color may be due to differences in lighting and computer monitor resolutions. All items are in stock at the time of listing however, in the unlikely and unforeseen event that we are unable to fulfill your order through any of our networked warehouses, we will notify you as quickly as possible and offer you a 100% refund on your purchase. Thank you for shopping with us. We appreciate your business! B078NRYBVZ

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    We provide fast, free shipping. Most items are shipped within 3-5 business days of receiving cleared payment. We ship to the lower 48 contiguous United States only. We do not ship to P.O. Boxes or APOs. Standard Shipping is ALWAYS FREE! You will be notified via messages as soon as your items ship. Special Notice for Freight Items: If an item ships via Freight (Truck) Delivery, a valid phone number will be required so that we can contact you to schedule delivery. The item may be delivered with curbside delivery. An adult signature will be required. Please be sure to have available help on hand to assist you with moving the item to the desired location in or outside of your home. Freight items must be inspected upon delivery. In the unlikely event that damaged is observed, you MUST refuse delivery and note the damage on the shipping receipt and send it back via the Freight carrier. Returns will not be accepted on Freight items after they have been delivered, inspected, and the driver has left the premises.

    We offer a 30 day return/exchange policy for most of our products. You can request a refund if you are dissatisfied for any reason with your product. (Restocking Fee May Apply). Only factory defects are accepted as a reason for a return. In the case of factory defects, if available, we will replace the product for you. When returning an item, it must be in all of the original packaging and include all of the original accessories or items that came with it. The item and package should be in original and perfect condition. You will be required to cover shipping on the return of non-defective items. All returns MUST be done within 30 days of date of purchase. Please note that we cannot give refunds or replacements after the 30 day limit has expired. When sending in a return, please note that it can take up to 7 business days for the return to be processed. We do our best to process as quickly as possible. We are extremely fair, and in the rare event of something out of the ordinary happening with our products or shipping, we will gladly work with you to find a fair resolution.