HUMIDITY INDICATORS

Drytech offers a wide range of humidity indicators. They are typically externally mounted on equipment to give visual
indication of humidity. They will change color when introduced to moisture vapors. They are used inside rigid containers,
electronic enclosures, optical cavities, and flexible moisture-vapor-proof bags, among other applications. The DT1
series can be used in conjunction with a static desiccator, providing ultimate protection against moisture. Mounting
options include thread mounting into enclosure, panel bushing, or crimp nut.

DHD1519 - M20 Thread 30/50% RH Indicator Plug

This is a split level Humidity Indicator with spanner flats for easy fitting into equipment. It can be used in combination with a static desiccator such as DHD1397. We also supply a service kit as we recommend the humidity indicator paper be replaced every 3-5 years


DHD2856 - M20 Thread 15/30% RH Indicator Plug

This is a split level Humidity Indicator with spanner flats for easy fitting into equipment. It can be used in combination with a static desiccator such as DHD1397. We also supply a service kit as we recommend the humidity indicator paper be replaced every 3-5 years


DHD4332 - Large Humidity Indicator Plug 4 Levels

This four level Humidity Indicator variation with spanner flats for easy fitting into equipment. It has spanner flats for easy fitting and also supplied with a back nut for panel or barrier bag mounting. We also supply a service kit as we recommend the humidity indicator paper be replaced every 3-5 years.


DHD5000/01-05 - 3/4” Humidity Indicator Plug

This is a split level Humidity Indicator with spanner flats for easy fitting into equipment. It can be easily fitted into a panel or flexible barrier bag using the supplied back nut.The can be supplied with natural threads R.F Screening Continuity. We also supply a service kit as we recommend the humidity indicator paper be replaced every 3-5 years.


DHD3058/01-04 - M35 Humidity Indicator Plug

This is a split level Humidity Indicator with spanner flats and a knurled finish for easy fitting into equipment. It can be used in combination with a static desiccator and can be supplied with a natural thread for RF Screening. We also supply a service kit as we recommend the humidity indicator paper be replaced every 3-5 years.


DHD7545/01-02 - M25 316 SS Humidity Indicator

This is a split level 316 Stainless Steel Humidity Indicator with spanner flats for easy fitting into equipment. It can be easily fitted into a panel or flexible barrier bag using the supplied back nut.The can be supplied with natural threads R.F Screening Continuity. We also supply a service kit as we recommend the humidity indicator paper be replaced every 3-5 years.


DHD3059/01-04 - M25 Humidity Indicator Plug

This is a split level Humidity Indicator with spanner flats and a knurled finish for easy fitting into equipment. It can be used in combination with a static desiccator and can be supplied with a natural thread for RF Screening. We also supply a service kit as we recommend the humidity indicator paper be replaced every 3-5 years.


DHD6344/01-02 - M12 Poly Humidity Indicator

This is a split level humidty indicator made from polycarbonate so it’s low cost and hard wearing. The plug is supplied with a back nut that can be used for various applications including mounting into barrier bags. We also supply a service kit as we recommend the humidity indicator paper be replaced every 3-5 years.


DHD7460 - No Thread 3 Level Humidity Indicator

This is a three level Humidity Indicator with a flange for fitting into equipment. It can be used in combination with a static desiccator and has a very low profile so it sits flush and is protected from damage. We also supply a service kit as we recommend the humidity indicator paper be replaced every 3-5 years.


DHD1080 - 3/4” UN Thread 50% RH Humidity Indicator

This is a single level Humidity Indicator with spanner flats for easy fitting into equipment. It can be used in combination with a static desiccator such as DHD1077. We also supply a service kit as we recommend the humidity indicator paper be replaced every 3-5 years.


DHD3842/01-02 - Low Profile Humidity Indicator

This is a low profile split level Humidity Indicator with key slot for easy fitting into equipment. It can be used in combination with a static desiccator and has a very low profile so it sits flush and is protected from damage. We also supply a service kit as we recommend the humidity indicator paper be replaced every 3-5 years.


Electronic Relative Humidity Indicators

Traditional humidity indicator papers rely on a distinctive colour change usually from blue to pink to signify a dry to wet humidity change. The humidity indication range for paper indicators is from 10% to 70% relative humidity although this must be specified at an ambient temperature and tolerance range.

The new Electronic Humidity uses a polymer humidity sensor combined with temperature sensor to provide a digital display reading of relative humidity, ambient temperature and dewpoint.

Dewpoint indicates the temperature to which the system or instrument can be cooled before condensation (or frost) will occur. This qualifies dewpoint as a quality control standard for specify an operating performance for systems and instruments.

The Electronic Indicator is mounted in a robust IP67 enclosure with membrane press switch to activate the three readings in sequence. Optional thread mounting or bulkhead flange fixing is available.

The operational battery life is typically 5 years.

DHD10373/10374/10375 - Low Profile Humidity Indicator

ERhi is the latest in innovation from DRYTECH and gives a new take on an old technology. The Electronic Relative Humidity Indicator combines RH, Temperature and Dew Point Display all into a single unit. Please see the attached data sheet for more information and look out for the launch of Mini ERhi.