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Predefined I/P Indicators & Controllers-902
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Model 902 Humidity cum Temperature Transmitter


Pantech Instrument’s Model 902 is an extended version to its predecessor model 901. Model 902 is a Humidity Transmitter + RTD sensing element. The Sensing + Transmitter circuits not only senses the %RH value , but also does convert it into 2-wire 4-20 mA DC signal, for use of the higher instrumentation or controlling layers. The load capacity of this 4-20 mA DC signal is 600 ohms. Model 902 series is often ideally suited for low drain, battery operated systems. The basic HUMIDITY sensor inside the probe gives quality RH ( Relative humidity ) sensing performance in a competitively priced package. The RH sensor is a laser trimmed, thermoset polymer capacitive sensing element with on-chip integrated signal conditioning. The sensing element’s and transmitter PCB’s multilayer construction provides excellent resistance to most application hazards such as wetting, dust, dirt, oils and common environmental chemicals. For TEMPERATURE measurement, a miniature but high quality RTD is installed inside the basic sensor. The model is a fully configurable one, microprocessor based type. The model incorporates low drift operational amplifiers and industrial grade componenets. Burn in of each module ensures a long trouble free operation



Inbuilt Humidity Sensor
Inbuilt RTD element


+/- 0.1% of span

Analog output load capability

800W maximum

Output accuracy

+/- 0.1% of span


Weatherproof, Flameproof and all other standard types





4-20 mA DC in 2-wire loop ( Humidity signal )
RTD signal ( Temperature )

Ambient temperature

0 – 50° C.


Upto 100% RH (non-condensing)

Storage temperature

0 – 70° C.


Head / Panel / Wall / Field

Power supply

24 V DC ( 22.5 to 28 ) V DC
from two wire loop


Ordering Information

Please confirm the availability of the model by cross checking the table mentioned on the backside.

Basic Model No.
(Specified by first 3 digits)

902 - Universal Temp. Transm.


Enclosure / Mounting

( letter following 3 digits)

P - Weatherproof - Panel
W - Weatherproof - Wall
F - Flame proof – Wall / Field
I - IP65 grades – Wall / Field
S - Specials

Connection / Terminal details
Signal voltage specifications :


Ordering Information

Basic Model No.
(Specified by first 3 digits)

902 - Humidity cum Temperature sensor


Enclosure / Mounting

(Specified by letter following 3 digits)
P - Weatherproof - Panel
W - Weatherproof - Wall
F - Flame proof – Wall / Field
I - IP65 grades – Wall / Field
S - Specials

Made in India By:


102, Shailja Complex II,

Akota – Padra Road,

Nr. R. C. Patel Ind. Estate,

Vadodara – 390 020.

Telefax: (265) 2331380/2303080.

Mobile: +9198240 16466/ +99242 10722