Jump to Navigation

HD Deluxe Duct and Outdoor Humidity Sensors

Deluxe Duct and Outdoor Humidity Sensors

HD/HO Deluxe humidity transmitters provide an ideal solution for measuring relative humidity in all conditions. All devices are equipped with a thin-film capacitive sensor that is easily replaceable in the field. These sensors are calibrated to NIST standards, with certificates available. The duct mounted HD is encased in a die cast metal housing for extra strength. The outdoor HO housing is completely weather proof – the most rugged sensor available. All Deluxe models come with an extended five-year warranty.

Sense humidity in harsh environments
• Thin-film polymer capacitive sensor element recovers from 100% saturation
• Fully interchangeable element to 1% (HD only), 2%, 3%, or 5% accuracy. Calibration-free!
• Replace element in the field...maintain accuracy and minimize downtime Rugged industrial design
• Duct sensor element can be serviced without disturbing conduit
• Polarity insensitive, two-wire 4-20mA, or 3-wire 0-5/0-10VDC versions...flexible systems compatibity Calibration-free interchangeable NIST traceable HS element
• HS element is microprocessor profiled with onboard nonvolatile memory
• Multi-point digital calibration to NIST standards
• NIST certification available
• Minimizes field calibration downtime

Select a link under the "item" tab below to order.

Table 1Table 2Table 3Table 4Table 5Table 6Table 7Table 8Table 9
Table 1Sensor Type
J10k Dale, Thermistor
B100R Platinum, RTD
C1k Platinum, RTD
D10k T2, Thermistor
E2.2k, Thermistor
F3k, Thermistor
G10k CPC, Thermistor
H10k T3, Thermistor
K10k with 11k shunt, Thermistor
M20k NTC, Thermistor
N1800 ohm TAC, Thermistor
Q1uA/˚C, Linitemp
R10k US, Thermistor
S10k 3A 221, Thermistor
T100k, Thermistor
U20k “D”, Thermistor
Table 2OPTION Temp cert
11pt Cal
22pt Cal
22pt Cal
11pt Cal
Table 3Enclosure
DRH Duct
Table 4Accuracy
Table 5NIST
XNone 2%, 3%, 5% only
NNIST 1% & 2% only
Table 6Output
Table 7US or EU
Table 8Temp.
XNo Temp (Stop here)
Table 9Range
1-40° to 50°C (-40° to 122°F)
20° to 50°C (32° to 122°F)
HS Element :
Digitally profiled thin-film capacitive (32 bit mathematics) U.S. Patent 5,844,138
Accuracy @ 25°C: ±1%, 2%, 3%, or 5% (specify) @ 10 to 80% RH; Multi-point calibration, NIST traceable
Reset Rate: 24 hours
Stability: ±1% @ 20°C (68°F) annually, for two years
Operating Humidity Range: 0 to 100% RH (non condensing)
Hysteresis: 1.5% typical
Linearity: Included in accuracy spec.
Duct Only Temperature Effect: ±0.1% RH/°C above or below 25°C (typical
Outdoor Only Temperature Effect: Voltage Versions (0.0015x%RHx(T°C-25)), (%RHx0.0008xabs(T°C-25))
mA Versions (0.0013x%RHx(T°C-25))
Analog Output: 4-20mA version: 2-wire, polarity insensitive, (clipped and capped)
0-5V/0-10V versions: 3-wire, observe polarity
Scaling: 0-100% RH
Operating Temperature Range: -40° to 50°C (-40° to 122°F)
Input Power: 4-20mA version: loop powered 12-30VDC only, 30mA max
0-5V/0-10V versions: 12-30VDC/24VAC, 15mA max
Optional Temperature Transmitter Output: Digital, 4-20mA (clipped and capped) or 0-5V/0-10V output;
HO transmitter accuracy: ±1.3°C (±2.3°F) typical;
HD transmitter accuracy: ±0.5°C (1.0°F) typical
EMC Conformance – CE Option: EN 50081-1, EN 50082-1, EN 61000-4-4, EN 61000-4-5,
EN 61000-4-3, ENV 50204, EN 61000-4-6v

Main menu 2