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HED Economy Duct and Outdoor Humidity Sensors

Economy Duct and Outdoor Humidity Sensors

HED/HEO Economy Series humidity transmitters offer an array of humidity control solutions at an affordable price. All devices include embedded electronics to protect against condensation. The thin-film capacitive sensor elements provide high accuracy and performance. The duct mounted HED includes a sturdy sheet metal housing. The outdoor HEO incorporates the same reliability as the indoor models into a casing rugged enough to withstand the elements. All Economy models come with a standard one-year warranty.

Reduce Installation Costs with Combination Sensors
• Monitor humidity and temperature with a single device
• Semiconductor, temperature transmitter, or popular thermistor/RTD sensors available
• Circuitry is embedded in the probe for durability and protection

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

Table 1Table 2Table 3Table 4Table 5Table 6Table 7Table 8
Table 1Sensor Type
N1800 ohm TAC, Thermistor
D10k T2, Thermistor
E2.2k, Thermistor
F3k, Thermistor
G10k CPC, Thermistor
H10k T3, Thermistor
J10k Dale, Thermistor
K10k with 11k shunt, Thermistor
M20k NTC, Thermistor
C1k Platinum, RTD
Q1uA/˚C, Linitemp
R10k US, Thermistor
S10k 3A 221, Thermistor
T100k, Thermistor
U20k “D”, Thermistor
B100R Platinum, RTD
Table 2Temp Cert
11pt Cal
22pt Cal
22pt Cal
11pt Cal
Table 3Type
Table 4Accuracy
Table 5Output
V0-10VDC / 0-5VDC
Table 6US or EU
Table 7Temp.
XNo Temp (Stop here)
T *Temp
Table 8Temp Range
20° to 50°C (32° to 122°F)
1-40° 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 (15 for 0-10V) to 30VDC/24VAC, 15mA max
HS Element :
Digitally profiled thin-film capacitive, non removable
Accuracy at 25°C from 10-90% RH: ±3% or 5%
Reset Rate: 24 hours
Stability: ±1% @ 20°C (68°F) annually, for two years
Operating Humidity Range: 0 to 100% RH (non condensing)
Temperature Effect: Voltage Versions: (0.0015%RH(T°C-25))+(%RH0.0008abs(T°C - 25)
mA Versions: (0.0013x%RH(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)
Optional Temperature Output
Transmitter Models:
Digital 0-5V/0-10V output; accuracy ±1.3°C
RTD Models: Customer specified thermistor, or RTD

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