Designed for tough outdoor environments. We conformal coat our circuit boards so that you experience longer life. Our robust RH sensor provides greater accuracy and longer life compared to other economical T/RH loggers.

Reusable WatchDog Series Data Loggers are an affordable way to track environmental conditions. Each miniature self-contained logger includes sensor(s), 8-month battery, internal clock and fail-safe nonvolatile EEPROM data memory. A Radiation Shield is required when the logger is used in outdoor conditions. The blinking LED confirms logger is recording. User replaceable battery (CR 2032-3V) has 8-month life.

Click to view the WatchDog 150 Data Logger user manual.