Specpoint Systems, LLC manufactures proprietary new instrument systems and replacement parts for Honeywell UVH series ammonia detectors.

The Specpoint UVH20 series provides the industry's most reliable and accurate high performance U.V. sensing technology. With over 10,000 systems operating worldwide and exclusive 100% passive sampling, you can monitor up to 8 separate zones with each detector. The UVH20 offers closed or open process sampling with no electrochemical sensor cell to replace.
Specifications*
- Accuracy +/- .50% of range
- Repeatability +/- .10% of range
- Measurement Ranges:
- 0-50 PPM NH3
- 0-100 PPM NH3
- 0-200 PPM NH3
- 0-250 PPM NH3
- 0-500 PPM NH3
- 0-2500 PPM< NH3
*Manufacturer reserves the right to change specs without notice
UVH20 Data SheetApplications
- Cold Storage ammonia detection
- Controlled Atmosphere (CA) warehouse ammonia detection
- Mechanical room ammonia detection
- Process monitoring of ammonia
- Specialized industry solutions
- Detection of other gases (Contact us for details)
- Hydraulic oil vapor detection
- Freon and HCFC/HFC/refrigeration vapor detection

Typical Install for UVH 20 A (0-50 ppm) CA Room Application

Typical Install for UVH 20 C (0-200 ppm) Compressor Room Application

Wiring Diagram

Like the UVH20 series, the Specpoint UVH22 provides the industry's most reliable and accurate high performance U.V. sensing technology. The UVH22 is designed for compact spaces, and it can fit 2 instruments into half the space of the UVH20.
Specifications*
- Dual-range, same, or mixed-range
- Accuracy +/- .50% of range
- Repeatability +/- .10% of range
- Measurement Ranges:
- 0-50 PPM NH3
- 0-100 PPM NH3
- 0-200 PPM NH3
- 0-250 PPM NH3
- 0-500 PPM NH3
- 0-2500 PPM< NH3
*Manufacturer reserves the right to change specs without notice
UVH22 Data SheetApplications
- Cold Storage ammonia detection
- Controlled Atmosphere (CA) warehouse ammonia detection
- Mechanical room ammonia detection
- Process monitoring of ammonia
- Specialized industry solutions
- Detection of other gases (Contact us for details)
- Hydraulic oil vapor detection
- Freon and HCFC/HFC/refrigeration vapor detection
![]() Wiring Diagram |