User`s guide

MASSA PRODUCTS CORPORATION
Product Manual- April 24, 2012 23 M3 Wireless Ultrasonic Level Sensor
APPENDIX C (continued)
Digi Gateway & Massa M3 Sensor Placement Strategies
This example shows a much taller tank with a gateway placed high
overhead. Here the tractor trailer does not impede the radio signals.
In this scenario, a chain link fence is between sensor and gateway.
A metal fence will significantly reduce the radio range. It is better
to place the tank with sensor on the other side of the fence or place a
router in a location possibly over the fence.
This scenario will also reduce the effective radio range. Place wall
routers between the 2 points or place the gateway closer to the
storage tanks. The radio signals here can bounce away from the
sensor if the roof is metal.