ServiceMASTER by Althouse Cleaning    

Remote Moisture Sensors

Technicians can now monitor a drying structure after a water claim over the internet instead of driving to the location. HygroTrac, a device developed by GE Sensing, measures the temperature, relative humidity; relative humidity,  specific humidity , and moisture content of materials. Up to 600 remote locations throughout the building can report to one "Data Access Gateway", G.E.'s receiving device and router.

The data is then sent over the internet via a DSL or modem connection. The water mitigation firm views and prints the data from a secure website. Automatic alarms can also be sent via text message and email. 

Individual sensors function up to 150 feet from the router and have a battery life of 5-7 years. Temperature can be be measured from -45°F to 185°F with accuracy within plus or minus 1 degree.

Relative humidity accuracy is ± 2 and a half degrees with a range of 10%Rh to 90%Rh.

Reading intervals can be adjusted from one minute to 24 hours.

In addition to monitoring buildings after a flood, these sensors can be installed permanently as a precaution against flood damage for business and government facilities.

 Althouse Cleaning has chosen not to use this technology at present for several reasons

• An onsite technician can move equipment, and add or delete equipment
• An onsite technicain can answer client questions and continue a positive relationship with the client
• Invasive meters require two screw holes for each meter (not including the Data Acquisition Gateway, the sensor receiver that connects to the internet)
• Fewer monitoring locations. An onsite technician will monitor several areas on each wall and floor. He or she will also monitor the differences intemperature and relative humidity between the intake and and the expelled air from each dehumidifier.
• Wet sheetrock walls are difficult materials to which to secure monitor screws