RTH-11 Meter and RTH-48 Meter

Overview

RTH-11 Meter and RTH-48 Meter are designed for using with the PM-11 Phytomonitor and the PTM-48A Photosynthesis Monitor, respectively.

The only difference is that the RTH-48 Meter has a built-in wetness sensor while RTH-11 has not. In PTM-48A, the wetness sensor is used for switching the suction air pump off in wet conditions to prevent water ingress inside the gas measurement system. The PM-11 Phytomonitor has no such gas system and, therefore, does not need the built-in wetness sensor. If necessary, the Leaf wetness sensor may be connected to any of eight analog inputs of PM-11 Phytomonitor.

Both RTH-11 and RTH-48 are power aspirated. The integrated air temperature and humidity sensor is located inside the protective enclosure.

RTH-11 and RTH-48 have a special digital input for the SMTE sensor (soil moisture, temperature, and EC).

Standard output cable length between signal conditioner and monitor is 4 meters.