Thermo-hygrometers can provide inaccurate information for a number of reasons. Many of these reasons are related to operator error, while others may be simply because of instrument limitations. The most common causes of inaccurate readings are as follows:

• Insufficient acclimation time. This acclimation time can range from 2-15 minutes, depending on the thermo-hygrometer used and conditions of the air stream.
• Weak battery
• Soiled probe
• Operator’s breath or perspiration
• Proximity of other air sources (HVAC, Dehumidifiers, etc.)
• Specification limits of the probe being used (many do not read below 20% relative humidity)

Are you providing evidence in every job that your equipment is working? Are you showing that your equipment rental has been earned? Here are some areas to focus on in your documentation:

• Include initial equipment calculations in your job file, this proves that you followed the IICRC recommended formula.
• Provide records of drying conditions that show specific humidity (GPP) of the affected area and dehu output
• Include a drying curve from a DriHawk or HygroHawk thermo-hygrometer that shows the “spike” – this is proof that your airmovers are working
• Show estimated pint removal for dehumidifiers
• Don’t forget to take readings on negative pressure systems, such as the DriForce/Rescue Mats, to show that they are working

A stressed out, mad, poorly trained technician provides poor customer service. Taking care of employees not only makes a business more profitable and efficient, it also leads to better customer service. Some tips for having happy employees:

• Train them thoroughly to perform their duties
• Patiently answer questions they have, ensuring they can apply proper procedures on the job
• Communicate high expectations for performance
• Root out “bad apples” – replace them before they cause problems for your business
• Follow good employment practices: regular reviews, proper disciplinary actions, etc
• Do little things for your employees to show you care