Digital Water Level Recorder (DWLR)

Digital Water Level Recorder (DWLR)

SLL – 99 Transmitter is able to be widely used in Ground water resources, petroleum, chemical-industry, power station, water conservancy, city flood control and city water supply and drainage, etc. It is supplied by battery, could work without manual control. The transmitter could record level or pressure change continuously.

By setting proper data collection interval, the transmitter could record from several days to several years. Very low power consumption is another advantage, one AA battery 3.6V/2400mAh could work many years continuously.


  • The latest micro processing technique; better accuracy and resolution for pressure and temperature signals; digital compensation for both linearity and temperature error of pressure sensor
  • Good data security due to non-volatile memory units
  • Single 3.6V/2400mAhLithium cell for power supply; low current≤30uAfor Standby Mode; long-term collection available
  • Full titanium housing; multi-track O-ring sealing; easy to change battery and read data
  • Complete recording to pressure, temperature and the happening time
  • Flexible recording time setting, the min. 1s, the max. 255 hours 59 minutes 59 seconds
  • The max. 50,000recording
  • Bus line RS485protocol; freely wake up transmitter to set and read pressure value, temperature value and recording
  • Factory setting restore available, could reduce cost when the user makes incorrect setting or maintenance
  • High stable design, use hardware watch-dog and multi-track software inspection to reduce system halted
  • Protection class IP68, long-term submersible application available
  • High accuracy class at wider temperature range -30℃~80℃.


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