The Series WTP-R Wireless Remote Probe Temperature Sensors can
be used to
monitor surface temperature of water lines or in locations where space
is limited. For
greater flexibility, the enclosure for the electronics can be mounted up
to 25' from the temperature measurement point. By sampling the
temperature measurement every 10 seconds, the 3.6V lithium battery is
able to power the unit for up to 8 years.
A reliable 418 MHz signal can carry the measurements up to 100 feet
without a repeater. With the optional 900 MHz repeater, measurements can
be transmitted up to 1000 feet away.