Sensor Zigbee signal level is too low, how can I improve it?

First, it’s important to understand the common factors that can affect the signal level of a Zigbee sensor:

  1. Distance:

    • Zigbee signals have a limited transmission range, typically within a few tens of meters. Longer distances may cause signal attenuation or loss.

  2. Obstacles:

    • Physical barriers like walls, furniture, and metal structures can weaken or block the propagation of Zigbee signals. Metal objects, in particular, can interfere with the signal the most.

  3. Interference sources:

    • Other wireless devices, electronic equipment, and electromagnetic interference sources such as microwave ovens, Wi-Fi routers, and Bluetooth devices can interfere with the transmission of Zigbee signals.

  4. Channel interference:

    • Zigbee networks have multiple available channels. However, if other devices or networks operate on the same channel, it can cause channel interference and impact signal quality.

To improve the Zigbee signal level by optimizing the deployment environment of the hub and sensors, follow these steps:

  1. Optimize deployment:

    • Place the hub in the central area of the sensor’s location. Ideally, position the hub at a higher elevation and keep its antenna vertical.

  2. Avoid obstacles:

    • Minimize signal attenuation and blockage by keeping large objects, metal structures, or other obstacles away from the path between the sensor and the hub.

  3. Eliminate signal interference sources:

    • Keep the sensor and hub away from other wireless devices or electronic equipment, especially potential sources of interference like microwave ovens.

  • It’s important to note that in indoor environments, the communication distance between the hub and the sensor typically ranges from 39.8ft-49.2ft (10m-15m), depending on the specific deployment environment.

  • You can determine the accuracy of the sensor signal values using the MOCREO Sensor app. By comparing the signal values of the sensor at two time points (last update time and current time) displayed on the sensor card, you can assess if there have been any significant changes. If the signal values at both time points remain relatively stable, those values represent the true signal level at the sensor’s current location.