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Collection: Humidity: Room

Room humidity sensors maintain healthy indoor air quality and comfort by monitoring moisture levels to automatically control fans, smart thermostats, and HVAC systems. This prevents issues like mold or sinus problems while optimizing energy use.

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2% (128 products)
3% (128 products)
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2% accuracy (66 products)
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0-100% RH (6 products)
10K Ohm (10 products)
4-20mA (79 products)
4-20 mA output (6 products)
0-5V (79 products)
0-10V (79 products)
24 Vdc supply (6 products)
2-wire (79 products)
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analog output (33 products)
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Greystone (483 products)
Greystone Energy (198 products)
HE-68N2 (10 products)
HE-68N3 (10 products)
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HRC2 (246 products)
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HRC5 (246 products)
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HT0R Series (40 products)
HT1 Series (39 products)
Humidistats (10 products)
Humidity Control (10 products)
Humidity Controls (562 products)
Humidity/Temp (39 products)
Johnson Controls (10 products)
LCD display (246 products)
low profile (40 products)
low profile enclosure (6 products)
microprocessor temperature compensation (198 products)
Nickel (10 products)
optional LCD (39 products)
optional temperature sensor (231 products)
Platinum (10 products)
Recessed (40 products)
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Relative Humidity Transmitter (33 products)
resistance output (33 products)
resistive temperature sensor (246 products)
RH100B Low Profile (33 products)
RH100S (198 products)
RH110B Series (6 products)
RH accuracy (40 products)
RH and Temp (6 products)
Room Humidity (456 products)
Room Humidity Transmitter (82 products)
Room RH (116 products)
Sensors (10 products)
Senva (79 products)
slide-pot setpoint (246 products)
Stainless Steel (198 products)
Temperature (10 products)
Temperature Transmitters (6 products)
thermistor output (39 products)
thermistor outputs (40 products)
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Transmitter (164 products)
universal analog output (39 products)
Value (40 products)
wall plate (198 products)
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2% (128 products)
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5% (39 products)
2% accuracy (66 products)
3% accuracy (66 products)
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0-100% RH (6 products)
10K Ohm (10 products)
4-20mA (79 products)
4-20 mA output (6 products)
0-5V (79 products)
0-10V (79 products)
24 Vdc supply (6 products)
2-wire (79 products)
3-wire (79 products)
AC/DC operation (198 products)
analog output (33 products)
Combo Sensors (6 products)
Greystone (483 products)
Greystone Energy (198 products)
HE-68N2 (10 products)
HE-68N3 (10 products)
HE-68P3 (10 products)
HE-6800 Series (10 products)
HE-6863 (10 products)
HE-P2 (10 products)
HRC2 (246 products)
HRC3 (246 products)
HRC5 (246 products)
HRC series (246 products)
HT0R Series (40 products)
HT1 Series (39 products)
Humidistats (10 products)
Humidity Control (10 products)
Humidity Controls (562 products)
Humidity/Temp (39 products)
Johnson Controls (10 products)
LCD display (246 products)
low profile (40 products)
low profile enclosure (6 products)
microprocessor temperature compensation (198 products)
Nickel (10 products)
optional LCD (39 products)
optional temperature sensor (231 products)
Platinum (10 products)
Recessed (40 products)
Recessed/Wall (39 products)
Relative Humidity Transmitter (33 products)
resistance output (33 products)
resistive temperature sensor (246 products)
RH100B Low Profile (33 products)
RH100S (198 products)
RH110B Series (6 products)
RH accuracy (40 products)
RH and Temp (6 products)
Room Humidity (456 products)
Room Humidity Transmitter (82 products)
Room RH (116 products)
Sensors (10 products)
Senva (79 products)
slide-pot setpoint (246 products)
Stainless Steel (198 products)
Temperature (10 products)
Temperature Transmitters (6 products)
thermistor output (39 products)
thermistor outputs (40 products)
Thermistor Type II (10 products)
Transmitter (164 products)
universal analog output (39 products)
Value (40 products)
wall plate (198 products)
Wall-Mount (10 products)

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572 products

Greystone RH100S02V10 S/S Surface Humidity Transmitter, 2%, 0-10Vdc output, No temperature sensor

Greystone RH100S02V10 S/S Surface Humidity Transmitter, 2%, 0-10Vdc output, No temperature sensor

Regular price $215.81 USD

Regular price Sale price $215.81 USD
Greystone RH100S02V05TP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, No temperature sensor, Tamper Proof Screws

Greystone RH100S02V05TP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, No temperature sensor, Tamper Proof Screws

Regular price $222.51 USD

Regular price Sale price $222.51 USD
Greystone RH100S02V05MTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1000 Nickel, Class B, DIN 43760, Tamper Proof Screws

Greystone RH100S02V05MTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1000 Nickel, Class B, DIN 43760, Tamper Proof Screws

Regular price $235.91 USD

Regular price Sale price $235.91 USD
Greystone RH100S02V05M S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1000 Nickel, Class B, DIN 43760

Greystone RH100S02V05M S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1000 Nickel, Class B, DIN 43760

Regular price $229.19 USD

Regular price Sale price $229.19 USD
Greystone RH100S02V05LTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 100 Platinum, IEC 751, 385 Alpha, thin Film, Tamper Proof Screws

Greystone RH100S02V05LTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 100 Platinum, IEC 751, 385 Alpha, thin Film, Tamper Proof Screws

Regular price $235.91 USD

Regular price Sale price $235.91 USD
Greystone RH100S02V05L S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 100 Platinum, IEC 751, 385 Alpha, thin Film

Greystone RH100S02V05L S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 100 Platinum, IEC 751, 385 Alpha, thin Film

Regular price $229.19 USD

Regular price Sale price $229.19 USD
Greystone RH100S02V05KTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 20,000, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Greystone RH100S02V05KTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 20,000, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Regular price $231.39 USD

Regular price Sale price $231.39 USD
Greystone RH100S02V05K S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 20,000, NTC Thermistor, ±0.2°C

Greystone RH100S02V05K S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 20,000, NTC Thermistor, ±0.2°C

Regular price $224.64 USD

Regular price Sale price $224.64 USD
Greystone RH100S02V05JTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10,000, type 2, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Greystone RH100S02V05JTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10,000, type 2, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Regular price $231.39 USD

Regular price Sale price $231.39 USD
Greystone RH100S02V05J S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10,000, type 2, NTC Thermistor, ±0.2°C

Greystone RH100S02V05J S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10,000, type 2, NTC Thermistor, ±0.2°C

Regular price $224.64 USD

Regular price Sale price $224.64 USD
Greystone RH100S02V05GTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 2.252K Thermistor, ±0.2 C, Tamper Proof Screws

Greystone RH100S02V05GTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 2.252K Thermistor, ±0.2 C, Tamper Proof Screws

Regular price $235.91 USD

Regular price Sale price $235.91 USD
Greystone RH100S02V05G S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 2.252K Thermistor, ±0.2 C

Greystone RH100S02V05G S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 2.252K Thermistor, ±0.2 C

Regular price $229.19 USD

Regular price Sale price $229.19 USD
Greystone RH100S02V05FTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1801, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Greystone RH100S02V05FTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1801, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Regular price $231.39 USD

Regular price Sale price $231.39 USD
Greystone RH100S02V05F S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1801, NTC Thermistor, ±0.2°C

Greystone RH100S02V05F S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1801, NTC Thermistor, ±0.2°C

Regular price $224.64 USD

Regular price Sale price $224.64 USD
Greystone RH100S02V05ETP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 3,000, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Greystone RH100S02V05ETP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 3,000, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Regular price $231.39 USD

Regular price Sale price $231.39 USD
Greystone RH100S02V05E S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 3,000, NTC Thermistor, ±0.2°C

Greystone RH100S02V05E S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 3,000, NTC Thermistor, ±0.2°C

Regular price $224.64 USD

Regular price Sale price $224.64 USD
Greystone RH100S02V05DTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10,000, type 3, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Greystone RH100S02V05DTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10,000, type 3, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Regular price $231.39 USD

Regular price Sale price $231.39 USD
Greystone RH100S02V05D S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10,000, type 3, NTC Thermistor, ±0.2°C

Greystone RH100S02V05D S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10,000, type 3, NTC Thermistor, ±0.2°C

Regular price $224.64 USD

Regular price Sale price $224.64 USD
Greystone RH100S02V05CTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1000 Platinum, IEC 751, 385 Alpha, thin Film, Tamper Proof Screws

Greystone RH100S02V05CTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1000 Platinum, IEC 751, 385 Alpha, thin Film, Tamper Proof Screws

Regular price $235.91 USD

Regular price Sale price $235.91 USD
Greystone RH100S02V05C S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1000 Platinum, IEC 751, 385 Alpha, thin Film

Greystone RH100S02V05C S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 1000 Platinum, IEC 751, 385 Alpha, thin Film

Regular price $229.19 USD

Regular price Sale price $229.19 USD
Greystone RH100S02V05BTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10k Type 3, NTC Therm, ±0.2 C c/w 11K shunt Resistor, Tamper Proof Screws

Greystone RH100S02V05BTP S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10k Type 3, NTC Therm, ±0.2 C c/w 11K shunt Resistor, Tamper Proof Screws

Regular price $235.91 USD

Regular price Sale price $235.91 USD
Greystone RH100S02V05B S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10k Type 3, NTC Therm, ±0.2 C c/w 11K shunt Resistor

Greystone RH100S02V05B S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, 10k Type 3, NTC Therm, ±0.2 C c/w 11K shunt Resistor

Regular price $229.19 USD

Regular price Sale price $229.19 USD
Greystone RH100S02V05 S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, No temperature sensor

Greystone RH100S02V05 S/S Surface Humidity Transmitter, 2%, 0-5Vdc output, No temperature sensor

Regular price $215.81 USD

Regular price Sale price $215.81 USD
Greystone RH100S02I20TP S/S Surface Humidity Transmitter, 2%, 4-20mA output, No temperature sensor, Tamper Proof Screws

Greystone RH100S02I20TP S/S Surface Humidity Transmitter, 2%, 4-20mA output, No temperature sensor, Tamper Proof Screws

Regular price $222.51 USD

Regular price Sale price $222.51 USD
Greystone RH100S02I20MTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1000 Nickel, Class B, DIN 43760, Tamper Proof Screws

Greystone RH100S02I20MTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1000 Nickel, Class B, DIN 43760, Tamper Proof Screws

Regular price $235.91 USD

Regular price Sale price $235.91 USD
Greystone RH100S02I20M S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1000 Nickel, Class B, DIN 43760

Greystone RH100S02I20M S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1000 Nickel, Class B, DIN 43760

Regular price $229.19 USD

Regular price Sale price $229.19 USD
Greystone RH100S02I20LTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 100 Platinum, IEC 751, 385 Alpha, thin Film, Tamper Proof Screws

Greystone RH100S02I20LTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 100 Platinum, IEC 751, 385 Alpha, thin Film, Tamper Proof Screws

Regular price $235.91 USD

Regular price Sale price $235.91 USD
Greystone RH100S02I20L S/S Surface Humidity Transmitter, 2%, 4-20mA output, 100 Platinum, IEC 751, 385 Alpha, thin Film

Greystone RH100S02I20L S/S Surface Humidity Transmitter, 2%, 4-20mA output, 100 Platinum, IEC 751, 385 Alpha, thin Film

Regular price $229.19 USD

Regular price Sale price $229.19 USD
Greystone RH100S02I20KTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 20,000, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Greystone RH100S02I20KTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 20,000, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Regular price $231.39 USD

Regular price Sale price $231.39 USD
Greystone RH100S02I20K S/S Surface Humidity Transmitter, 2%, 4-20mA output, 20,000, NTC Thermistor, ±0.2°C

Greystone RH100S02I20K S/S Surface Humidity Transmitter, 2%, 4-20mA output, 20,000, NTC Thermistor, ±0.2°C

Regular price $224.64 USD

Regular price Sale price $224.64 USD
Greystone RH100S02I20JTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10,000, type 2, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Greystone RH100S02I20JTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10,000, type 2, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Regular price $231.39 USD

Regular price Sale price $231.39 USD
Greystone RH100S02I20J S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10,000, type 2, NTC Thermistor, ±0.2°C

Greystone RH100S02I20J S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10,000, type 2, NTC Thermistor, ±0.2°C

Regular price $224.64 USD

Regular price Sale price $224.64 USD
Greystone RH100S02I20GTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 2.252K Thermistor, ±0.2 C, Tamper Proof Screws

Greystone RH100S02I20GTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 2.252K Thermistor, ±0.2 C, Tamper Proof Screws

Regular price $235.91 USD

Regular price Sale price $235.91 USD
Greystone RH100S02I20G S/S Surface Humidity Transmitter, 2%, 4-20mA output, 2.252K Thermistor, ±0.2 C

Greystone RH100S02I20G S/S Surface Humidity Transmitter, 2%, 4-20mA output, 2.252K Thermistor, ±0.2 C

Regular price $229.19 USD

Regular price Sale price $229.19 USD
Greystone RH100S02I20FTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1801, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Greystone RH100S02I20FTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1801, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Regular price $231.39 USD

Regular price Sale price $231.39 USD
Greystone RH100S02I20F S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1801, NTC Thermistor, ±0.2°C

Greystone RH100S02I20F S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1801, NTC Thermistor, ±0.2°C

Regular price $224.64 USD

Regular price Sale price $224.64 USD
Greystone RH100S02I20ETP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 3,000, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Greystone RH100S02I20ETP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 3,000, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Regular price $231.39 USD

Regular price Sale price $231.39 USD
Greystone RH100S02I20E S/S Surface Humidity Transmitter, 2%, 4-20mA output, 3,000, NTC Thermistor, ±0.2°C

Greystone RH100S02I20E S/S Surface Humidity Transmitter, 2%, 4-20mA output, 3,000, NTC Thermistor, ±0.2°C

Regular price $224.64 USD

Regular price Sale price $224.64 USD
Greystone RH100S02I20DTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10,000, type 3, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Greystone RH100S02I20DTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10,000, type 3, NTC Thermistor, ±0.2°C, Tamper Proof Screws

Regular price $231.39 USD

Regular price Sale price $231.39 USD
Greystone RH100S02I20D S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10,000, type 3, NTC Thermistor, ±0.2°C

Greystone RH100S02I20D S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10,000, type 3, NTC Thermistor, ±0.2°C

Regular price $224.64 USD

Regular price Sale price $224.64 USD
Greystone RH100S02I20CTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1000 Platinum, IEC 751, 385 Alpha, thin Film, Tamper Proof Screws

Greystone RH100S02I20CTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1000 Platinum, IEC 751, 385 Alpha, thin Film, Tamper Proof Screws

Regular price $235.91 USD

Regular price Sale price $235.91 USD
Greystone RH100S02I20C S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1000 Platinum, IEC 751, 385 Alpha, thin Film

Greystone RH100S02I20C S/S Surface Humidity Transmitter, 2%, 4-20mA output, 1000 Platinum, IEC 751, 385 Alpha, thin Film

Regular price $229.19 USD

Regular price Sale price $229.19 USD
Greystone RH100S02I20BTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10k Type 3, NTC Therm, ±0.2 C c/w 11K shunt Resistor, Tamper Proof Screws

Greystone RH100S02I20BTP S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10k Type 3, NTC Therm, ±0.2 C c/w 11K shunt Resistor, Tamper Proof Screws

Regular price $235.91 USD

Regular price Sale price $235.91 USD
Greystone RH100S02I20B S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10k Type 3, NTC Therm, ±0.2 C c/w 11K shunt Resistor

Greystone RH100S02I20B S/S Surface Humidity Transmitter, 2%, 4-20mA output, 10k Type 3, NTC Therm, ±0.2 C c/w 11K shunt Resistor

Regular price $229.19 USD

Regular price Sale price $229.19 USD
Greystone RH100S02I20 S/S Surface Humidity Transmitter, 2%, 4-20mA output, No temperature sensor

Greystone RH100S02I20 S/S Surface Humidity Transmitter, 2%, 4-20mA output, No temperature sensor

Regular price $215.81 USD

Regular price Sale price $215.81 USD
Greystone RH100S03V10TP 3% Room stainless plate humidity c/w 24 Vac/dc supply & 0-10 Vdc output w/ Tamperproof Screws

Greystone RH100S03V10TP 3% Room stainless plate humidity c/w 24 Vac/dc supply & 0-10 Vdc output w/ Tamperproof Screws

Regular price $163.37 USD

Regular price Sale price $163.37 USD
Greystone RH100S03V10MTP 3% Room stainless plate humidity c/w 24 Vac/dc supply & 0-10 Vdc Output, 1000 ohm nickel RTD & Tamperproof Screws

Greystone RH100S03V10MTP 3% Room stainless plate humidity c/w 24 Vac/dc supply & 0-10 Vdc Output, 1000 ohm nickel RTD & Tamperproof Screws

Regular price $175.69 USD

Regular price Sale price $175.69 USD
Greystone RH100S03V10M 3% Room stainless plate humidity c/w 24 Vac/dc supply & 0-10 Vdc Output, 1000 ohm nickel RTD

Greystone RH100S03V10M 3% Room stainless plate humidity c/w 24 Vac/dc supply & 0-10 Vdc Output, 1000 ohm nickel RTD

Regular price $169.21 USD

Regular price Sale price $169.21 USD
Greystone RH100S03V10LTP 3% Room stainless plate humidity c/w 24 Vac/dc supply & 0-10 Vdc Output, 100 ohm Platinum RTD & Tamperproof Screws

Greystone RH100S03V10LTP 3% Room stainless plate humidity c/w 24 Vac/dc supply & 0-10 Vdc Output, 100 ohm Platinum RTD & Tamperproof Screws

Regular price $175.69 USD

Regular price Sale price $175.69 USD
Greystone RH100S03V10L 3% Room stainless plate humidity c/w 24 Vac/dc supply & 0-10 Vdc Output, 100 ohm Platinum RTD

Greystone RH100S03V10L 3% Room stainless plate humidity c/w 24 Vac/dc supply & 0-10 Vdc Output, 100 ohm Platinum RTD

Regular price $169.21 USD

Regular price Sale price $169.21 USD

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