Q: What does “LL” mean?

A: The HumiReader reads a humidity range of 20% - 99% and temperature range of 32 F - 122 F / 0 C - 50 C, If your humidity or temperature are below those ranges the reader will readout “LL”.


Q: How do I reset the Min/Max? 

A: You can reset your Min/Max anytime by holding the Min/Max button down for 3 seconds. 


Q: I need to replace the battery, what do I buy?

A: You will need a AG13 battery.


Q: Can you calibrate the HumiReader?

A: No, it is calibrated at the factory to function with a +/-3% accuracy.