User's Manual

GreenOK-II : Wireless Thermo-Hygro Monitor
User’s Manual (Rev 2.1)
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2. Systems Configuration
z GreenOK-II is composed of Wireless Sensing U nit(WSU) for te mperature and humidity
monitoring and Base Monitoring Unit(BMU) for displa ying the data from wireless sensing unit
and Wireless Repeater Unit(WRU) which retransmit the data from WSU.
z The Wireless Sensing Unit (WSU) measures the temperature and humidity value and transmits
the data wirelessly to the base monitoring unit. It transmits the data over 2.4GHz radio
frequency band and operates with 2 C-size batteries, which can be installed and replaced very
easily by the end user.
z The Base Monitoring Unit (BMU) receives the data from the wireless sensing units, displays
the current values, and alarm status. It operates with AC power adapter as well as with 2 C-size
batteries. Pre-defined high temperature and lo w temperature alar m conditions trigger the r ed
alarm indicators and the alarm sounds to notify you of the alar m situation in real-time. It can
also be operated as repeater mode, which the AC power adapter is suggested because of
relatively high batter y consumption. Up to maximum 16 wireless sensing units can be
monitored simultaneously by base monitoring unit.
z The Wireless Repeater Unit (WRU) retransmit the data between WSU and BMU up to 8 steps.
By using WRU, the longer radio monitoring d istance can be achieved and also be applied to
cover geographical hidden area.
Type Model Name Description
Wireless Sensing Unit
(WSU)
GMS-120ZB TEMP & RH, 2 Volt Inputs
GMS-130ZB
GMS-140ZB 2 Volt Inputs
Base Monitoring Unit
(BMU)
GMS-220ZB Monitor up to 16 Sensing Units
Wireless Repeater Unit
(WRU)
GMS-220ZB-RPT Repeat up to 8 steps
<Table 1> GreenOK-II Product Information