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Waterproof Sensor Beacon with PA Product Specification

Table of Contents

Product Name: Temperature Humidity Sensor

Model Name: DSR-0820

1. Introduction

1.1 Description

DSR-0820 is a Low Energy temperature and humidity data logger, It can collect the temperature and humidity of the surrounding environment. Such data can be recorded as history data. Its characteristics are small-sized, low-weighted, easily portable, and highly accurate for wide use in cold chain logistics, archives, labs, museums, etc.

At present, there are three different types of temperature and humidity sensors, DSR-0820-1 is a high-performance product based on Bluetooth protocol, DSR-0820-2 is based on Zigbee protocol, and DSR-0820-3 is a standard performance product based on Bluetooth protocol. 

DSR-0820-1 with the Bluetooth v5.0 technology and Nordic NRF52832 chip. Built-in wireless transceiver PA chip, with the maximum transmission power of up to 20dBm, to achieve ultra-long distance stable transmission of data, can store up to 12000 pieces of the temperature and humidity data.

DSR-0820-2 with the Zigbee 3.0 technology and Silconlab EFR32 series chip. the maximum transmission power up to 17.5dBm, to achieve ultra-long distance stable transmission of data. It can store up to 12000 pieces of the temperature and humidity data. 

DSR-0820-3 with the Bluetooth v5.0 technology and Nordic NRF52810 chip. the maximum transmission power up to 4dBm, Suitable for use at close range.

Model Bluetooth 5.0 Zigbee
RTC Temperature
Humidity detect

1.2 Application

  • Refrigerated storage and transportation;
  • Archives;
  • Experimental (test) rooms;
  • Workshop;
  • Museums;
  • Pharmaceutical environment;
  • Fresh transport.

1.3 Product feature

  • High accuracy and stability;
  • Ultra long-distance(300m) wireless transfer (except DSR-0820-3);
  • Built-in highly sensitive temperature and humidity sensor SHT20 (Sensirion);
  • Real-time display temperature and humidity;
  • It can store 12000 pieces of temperature and humidity data (except DSR-0820-3);
  • You can set the alarm temperature range;
  • Can be set as normal storage temperature and humidity data interval and alarm storage temperature and humidity data interval;
  • Can by OTA update version.

2. Appearance

image 8

3. Product specification

Item DSR-0820-1 Bluetooth with PA DSR-0820-2 Zigbee DSR-0820-3 Bluetooth without PA
Signal transmission frequency 2.400 – 2.4835GHz 2.405GHz – 2.480GHz 2.400 – 2.4835GHz
Protocol standard Bluetooth 5.0 Zigbee 3.0 Bluetooth 5.0
Send interval 2S, adjustable
Built in battery Panasonic CR123A ,1400mAh /3V CR2450 550mAh
Output power 20dBm, adjustable 17.5dBm,adjustable 4dBm,adjustable
Communication rate 1Mbps 250Kbps 1Mbps
Transmission distance ~300 meters, adjustable ~50 meters, adjustable
Storage Can be save 12000 temperature and humidity Not support
Battery life ~3 years(Depends on the mode of operation) ~1 year
Net weight 130 g
Outline size 70mm*40mm*40mm (main body)
Detect temperature range -40℃~ +125℃
Operating temperature range -25℃~ +60℃
Humidity detection range 0~100%RH
Temperature detection accuracy ±0.3℃
Humidity detection accuracy ±3%RH
IP protection IP 68

4. Caution

  1. Being close to a metal object will interfere with the signal, causing the signal to be weaken.
  2. Note the distance between DSR-0820 and the receiver to guarantee the accuracy of receiving.
  3. Keep away from corrosive objects.

5. Reference usage

Gateway usage

  1. Temperature & humidity sensor paired to the Bluetooth gateway.
  2. Bluetooth Gateway gets the data from the sensor and sends the information to Cloud via Wi-Fi or LTE once per second.
image 9

Still have questions?

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