Viconics VT7607 Installation Manual - Manual (Page 9)

9 | PIR Ready VT76x7 Series-Installation Guide
Remote humidity sensor accessories
Model no. Description
VH2020W1000 Wall mounted humidity sensor
VH2020D10000 Duct mounted humidity sensor
VH2020W1000, remote wall mounted room humidity
sensor.
This sensor can be used for:

Remote return or room air humidity sensing
with the sensor mounted on the wall.
VH2020W1000
VH2020D1000, remote duct mounted humidity
sensor c/w junction box.
This sensor can be used for:

Remote return air humidity sensing with the sensor
mounted on the return air duct.

Supply air humidity sensor used as high limit
protection
VH2020W1000
Wiring example of remote room
humidity sensor:
Wiring example of duct humidity
sensor: