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A With ER18500 battery, the capacity is up to 4500mAh, the frequency of meter reading once a day, battery life can be up to 6 years.

A The data read by the GPRS platform comes from the reading of the electronic part of the water meter. Even if the water meter does not have a SIM card installed, the electronic part will still count normally, but the data transmission and control functions are affected. Sim card is just a means of communication, replacing the Sim card will not affect the water meter data.

A The date and ID of the GPRS water meter cannot be modified by our software, but the time and date can be modified through the background of the factory.

A This feature is not implemented on our platform and can be implemented through the customer's platform.

A First of all, we can check in the alarm function on the platform that the water meter has no data to return, and then check the installation environment for obvious damage, and can use the method of actively triggering the water meter to go online;

A No, because the GPRS wireless water meter uses the existing GPRS communication tower for data transmission, similar to mobile phone signal transmission;

A If the valve is stuck by the sand flowing in the pipe, the program in the water meter will try within 40S of the switch valve action. Once the valve cannot be normally opened and closed, the water meter will give up this command and return the failure data to the platform. The information about this water meter can be viewed on the platform for the management to view;

A First of all, to confirm whether the country has 2G signals, the installation area GPRS signal coverage, the GPRS communication carrier information and APN that the customer wants to use.

A This product can soak water, but the water will affect the stability of signal transmission, because the signal will be greatly affected in the water transmission.

A At present, LoRa wireless water meter adopts full potting and sealing technology, which uses the silicone gel package circuit board part, and the battery plug is also sealed to achieve IP68 protection level.

A In the case of ensuring the GPRS signal strength, the GPRS water meter upload data is not affected by the distance;

A Using ER26500 battery, the capacity is up to 9000mAh, the frequency of meter reading once a day, the battery life can be up to 4 years.

A We will advise customers to purchase a certain number of spare water meters when purchasing in bulk. When problems occur, they can be replaced first, and then the problem water meter will be sent back to the manufacturer for confirmation and repair.

A If the valve is stuck by the sand flowing in the pipe, the program in the water meter will try within 40S of the switch valve action. Once the valve cannot be normally opened and closed, the water meter will give up this command and return the failure data to the platform. The information about this water meter can be viewed on the platform for the management to view;

A No, because the built-in valve will have a greater impact on the stability of the ultrasonic measurement. The higher the frequency of the switch valve, the greater the impact on the accuracy of the measurement.

A The concentrator needs 220V power supply, and uses GPRS to wirelessly transmit data to the platform on the PC side;

A At present, the maximum single concentrator carries 500. Considering the actual installation density of the community, it is generally far lower than this number.

A At present, our LoRa water meter can be used in the frequency bands of 470-510MHz and 865-868MHz, which is determined by the design procedure of the module. If you need other frequencies, you can customize it, but you need to batch, and the number of custom developments is more than 2000.