M-Series Wireless Temperature & Humidity Sensor
M-Series Wireless Temperature & Humidity Sensor

M-Series Wireless Temperature & Humidity Sensor

$37.95 Sale

This M Series wireless Temperature and Humidity sensor is one of the finest & highest-accuracy devices you can get. It has a Sensiron sensor with an excellent ±2% relative humidity and ±0.3°C accuracy for most uses (see below graphs). Sensiron, based in Switzerland, produce some of the worlds most trusted environment sensors commonly found in medical, industrial and automotive sectors, analytical instruments, consumer goods and HVAC products.

The radio transmitter is our high-performance RF transceiver that transmits the temperature and humidity to a receiver (IoT Gateway or Flex RF Module) over 128bit AES encryption.

The sensor and transceiver are capable of working  over a wide operating voltage (2-3.6V) making it suitable for battery power. Based on our calculations the sensor should last 6 months on a pair of AA batteries (Included) updating on a 5 minute transmission intervals (being confirmed through testing).

 

 

Technical Specs:

  • ±2% relative humidity and ±0.3°C accuracy
  • High-performance RF transceiver based on the market-leading CC1100 SOC.
  • Wide operating voltage range of 2-3.6V makes the devices suited for battery power.
  • Current consumption: RX: 16.2 mA , TX: 15.2 mA. Deep Sleep : 0.005Ma (0.5 µA).
  • Up to 1KM line of sight. Short range (~30M) penetration of walls and floors.
  • 128-bit AES encryption security.
  • Driver-less installation.
  • All the devices are highly configurable through the serial port or over the air using the LLAP messaging protocol specified in the manual. 
  • Base station communicates through serial port (TTL UART).
  • Communicates in ASCII clear text making it very easy to exchange data between devices over the air.
  • Supports point to point, point to multi-point, multi-point to point and multi-point to multi-point.
  • Virtually unlimited amount of devices can be deployed. 99,999 Personal Area Network ID’s, 10 channels per frequency and 7,744 Device ID’s per network.
  • Super low power consumption allows devices to be use with a coin cell battery for long periods of time (up to 1/2 year depending on transmission rates).
  • Supports 6 frequencies (433 MHZ, 915 MHZ (US & Canada), 868.3 MHZ (Europe), 868 MHZ, 903 MHZ, 315 MHZ)
  • 10 channels per frequency.
  • Serial communication with external micro-controllers like Raspberry Pi and Arduino (Tx, Rx, GND, 3V3).
  • Battery monitor to keep track of power consumption. 

Serial Specification:

  • UART Serial (Tx,Rx, VCC, GND)
  • 3V
  • 9600 baud , N, 8, 1
  • Clear text 12 character LLAP message protocol format (more details here)
 Architecture:

Tutorials: