FH3/FH4 Digital Temperature Gauge

Ideal replacement for Mercury-InGlass thermometers:

  • Designed for Retort Cookers.
  • Operates on field replaceable batteries.
  • Large Liquid Crystal Display for easy viewing.
  • Field calibration capability available.

More details

New product
More info

The model FH DTG Digital Temperature gauge is a battery operated dual element digital thermometer specifically designed for use on retort processing systems. It fully complies with FDA requirements outlined in 21 CFR 113.

The Anderson-Negele DTG Digital Temperature Gauge carries on the tradition of accurate and reliable electronic temperature indication, while incorporating many new features tailored to a growing industry. Health concerns related to mercury continue to grow, and the days of the traditional (MIG) mercury-in-glass thermometer on the process floor are numbered.

As regulations in the Retort Cooker industry change, and plants look to adopt new technology, the DTG is there to offer a solution. Building on a solid platform of accuracy and reliability, the DTG incorporates additional features specific to this demanding market. Redundant temperature elements provide continuous error checking. Unlike traditional MIG’s or simple off the shelf components, this unique feature provides backup so your process can continue to run, with no emergency downtime. Certification of calibration against an NIST traceable source is provided with each unit. For facilities with in-house Metrology capability, the DTG offers up to five user configurable calibration points, so you can fine tune in order to perfectly match your in-house reference.


  • Ideal replacement for Mercury-InGlass thermometers
  • Designed for Retort Cookers · Operates on field replaceable batteries
  • Large Liquid Crystal Display makes viewing easy and repeatable
  • All models offer field calibration capability
  • Dual element and onboard diagnostics; complies with Code of Federal Regulations

Industrial Technical Services from Mississauga, Ontario is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels.

Part No.
Product Code
High Temperature Retort - Direct Mount
Display Units
Deg F
Retort Port
Insertion Length
3.5 INCH
Standard Probe
Remote Display Cable Length
±0.5°F (± 0.3°C) Full Scale
Operating Range
Fixed; 0 - 300°F (-18 - 150°C)
Ambient Temperature Limits
40 - 158°F (4 - 70°C) (with use of Thionyl Chloride Lithium batteries only)
Process Temp. Range Temperature Limits
0 - 300°F (-18 - 150°C)
Response Time
Display update every 3 seconds
Calibration Stability
One year recommended calibration interval
Designed for process floor mounting; NEMA 4X rated for harsh environment
Supply Voltage
Field replaceable batteries; Thionly Chloride Lithium 3.6VDC per cell, AA package with two per unit
Dual 1000 ohm resistance temperature elements
Process Connections
3-1/2” Retort Port / 6-1/8” Retort Port / 9-1/8“ Retort Port / 10-1/2“ Retort Port / 12-1/8“ Retort Port / 1/2” NPT 2-1/2“ Bi-Metal well / 1/2” NPT 4“ Bi-Metal well / 1/2” NPT 6“ Bi-Metal well / 1/2” NPT 9“ Bi-Metal well / 1/2” NPT 12“ Bi-Metal well / 1/2” NPT 15“ Bi-Metal well / 1/2” NPT 18“ Bi-Metal well / 1/2” NPT 24“ Bi-Metal well
Display LCD
4-digit main display, 6-digit secondary; 0.9" high contrast LCD
Fitting & Probe Material/Materials and Finishes
316L SS
Process Contact Finish/Materials and Finishes
Ra max = 32 micro inches
Non-Process Contact/Materials and Finishes
Housing; 304 SS
Materials and Finishes
Lens; Polysulfone
From 2.5 to 5 lbs. depending on fitting
Compliance/Protection Class
CE / NEMA 4X / USDA / IP 66
2 years

Contact Us

“Industrial Technical Services is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels”.


Please fill details below and one of our representative will contact you shortly. 

23 other products in the same category: