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Classification -
Temperature Sensor Probe, Digital
Thermometer, K type Thermocouple,
manufacturer. |

The Pyrometer Digital 250
SDT141S-Contact digital thermometer
is a rugged portable easy to read
thermocouple pyrometer that utilizes
interchangeable, reusable thermocouple
tips on contact temperature measurement
applications.
These digital
thermometer pyrometers are ideal for
temperature sensor measurement using
thermocouple thermometer K type
thermocouples.
Instrument temperature display
accuracy to ± 0.3% of reading. The
Digital 250 digital thermometer meter comes
complete in a durable aluminum housing
and is ready to use with a wide variety
of thermocouples. The extension arm is
constructed of 5/8" chrome plated Brass
Tubing. There are two versions of
extension arms to choose from, either a
direct connected 12" long rigid arm or
if you are taking temperature
measurements in an awkward or hard to
reach position, there is a flexible
extension arm with a 12" rigid arm that
includes a bicycle grip type handle
connected to 30" stainless steel
interconnecting armor cable to your
Digital 250 for taking high temperature
measurements in any position at a safe
and comfortable distance.

The PYRO Digital 250
SDT141S-Contact digital thermometer can
accommodate a wide variety of
thermocouple tips that are suited for
many types industrial and commercial
applications.
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Foundries
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Castings
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Rolling Mills
- Heat
Treating
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Billets
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Rotating Rolls
- Steam
Traps
- Dies &
Molds
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- Engine
Heads
- Brake
Drums
- Bars &
Sheets
- Oil
Baths
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- Weld
Temps
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Plastic & Rubber
- Oven
Chambers
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The PYRO Digital 250
Series Model SDT141S-Contact
thermocouple thermometer is easy to
operate from the front keypad. Simply
install the appropriate thermocouple,
select from the keypad input type K
thermocouple, select temperature °F or
°C and select display resolution 1/10°
or 1° and you are ready to measure the
process temperature. In addition, if you
wish to check temperature measurement
variations over a period of time the
SDT141S has a record feature where you
can also view the minimum or maximum
temperatures on the meter’s display.
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- Simplicity Of Operation
- Complete line of Interchangeable Arms and Thermocouples
- Durability / Ruggedness
- Min/Max and actual temperature
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Selectable Readout & Resolution:
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°F or °C (1/10° from 0 - 999.9° or 1° over 1000°) |
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Temperature Range:
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32°F - 2462°F (0-1350°C) |
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Accuracy:
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± 0.3% Of Temperature Displayed, typical ± 1.8°F or ± 1.0°C |
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Ambient Temperature Range:
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40°F to 120°F ( 5°C - 50°C ) |
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Digital Display:
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4 Digits - Characters 1/2" High LCD |
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Cold Junction Compensation:
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Automatic |
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Power:
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9.0 Volt Alkaline Battery, 100 Hours Continuous Operation |

- The PYRO SDT141S-Contact Pyrometer comes complete factory calibrated traceable to NIST standards.
- Optional "Certificate of Calibration" per point to NIST Standards can also be provided.
- Expert factory service is also available for periodic calibration or maintenance.

When ordering specify the PYRO Digital 250 Model SDT141S-Contact Pyrometer and the required interchangeable Extension Arms and Thermocouples from below to meet your applications.

Good performance and reliability are what you expect when you buy precision products from The Pyrometer Instrument Company, Inc.. The PYRO Digital 250 SDT141S-Contact
thermocouple thermometer comes complete with a three year factory warranty on the electronic meter and a one year warranty on all hardware items. For complete details see our Product Warranty Page.
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Interchangeable Contact Type Extension Arms
PYRO offers a wide range of industrial rigid and flexible extension arms to meet your surface applications. Rigid extension arms are constructed from rugged 5/8" diameter tubes with protective chrome plating, available in standard 12" length. All extension arms incorporate an angle to target "knuckle" for ease of operation. Flexible extension arms utilize stainless steel flexible armor between the handle grip and the extension arm. PYRO contact extension arms are completely interchangeable. Custom extension arms are available upon request, consult factory
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| Model Number |
Type |
Photo |
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K21
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Rigid Extension Arm,12" long with Standard Connector |
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K24
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Flexible Extension Arm, 42" long o.a. consisting of a 12" rigid arm with a grip handle & 30" of 1/4" dia. flexible SS armor |
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K18AO
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18" A rigid add-on arm section for model 12 &12 QC |
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Interchangeable Contact
K Type Thermocouples |
Accuracy On K
Type Surface Thermocouples
32°F - 530°F ±4°F
or
0°C - 277°C ±3°C
530°F - 2300°F ±3/4%
or
277°C - 1260°C ±3/4%
PYRO offers a wide range industrial thermocouple styles to meet your applications. Pyro's many styles of contact thermocouples allow for contact measurement of convex, flat, rotating, soft molten materials. Special purpose thermocouples are available for immersion in liquids, gases, or for measuring air temperature. PYRO thermocouples thread securely into the Pyro Digital 250 SDT141S-Contact Extension Arms. All PYRO contact thermocouples are interchangeable. Custom thermocouples are available upon request,
consult factory
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Model K1, Band
Convex Applications
5" Head Span
Maximum Temperature 500°F (260°C)
Response Time 7-10 seconds
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Model K1A, Band
Convex Applications
3" Head Span
Maximum Temperature 500°F (260°C)
Response Time 7-10 seconds
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Model K10, Wire Junction with
Flexible Extension Arm 30" SS Armor Cable
Flat Surface Applications
1/4" Head Diameter
Maximum Temperature 1700°F (925°C)
Response Time 3 seconds
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Model K2, Wire Junction
Flat Surface Applications
1/4" Head Diameter
Maximum Temperature 1700°F (925°C)
Response Time 3 seconds
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Model K3, Silver Disc
Semi Flat Surface Applications
1/4" Head Diameter
Maximum Temperature 1300°F (700°C)
Response Time 5 seconds
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Model K4, Prod
Billet, Molds & Sheet Applications
3/4" Tip Width x 2" Long
Maximum Temperature 2300°F (1260°C)
Response Time 10 seconds
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Model K5, Needle
Semi Fluids, Rubber & Plastic Applications
1/16" Diameter x 2" Long
Maximum Temperature 1300°F (700°C)
Response Time 7 seconds
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Model K6, Needle
Semi Fluids, Rubber & Plastic Applications
1/8" Diameter x 6" Long
Maximum Temperature 1300°F (700°C)
Response Time 7 seconds
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Model K15, Needle
Semi Fluids, Rubber & Plastic Applications
1/8" Diameter x 2" Long
Maximum Temperature 1300°F (700°C)
Response Time 7 seconds
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Model K7, Bare Wire
Furnaces, Oils & Dirty Fluid Applications
Two 1/16" Diameter Wires x 6" Long
Maximum Temperature 2000°F (1100°C)
Response Time 5 seconds
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Model K8, Protected Tube
Corrosive Liquid Applications
1/4" Diameter x 6" Long
Maximum Temperature 1300°F (700°C)
Response Time 7 seconds
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Model K9, Leaf Type
Press & Platen Applications
0.010" Thick x 6" Long
Maximum Temperature 2000°F (1100°C)
Response Time 5 seconds
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Model K16, Air Type
Oven Applications
1/4" Diameter x 6" Long
Maximum Temperature 1300°F (700°C)
Response Time 3 seconds
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Model KSP49A, Spring Prod
Sheet & Billet Applications
12" Rigid Handle, 5.0' Flexible SS Armor Cable
Maximum Temperature 2300°F (1260°C)
Response Time 10 seconds
Note: Standard Thermocouple Connector
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Model KSP49B, Spring Prod
Sheet & Billet Applications
12" Rigid Handle, 30" Flexible SS Armor Cable
Maximum Temperature 2300°F (1260°C)
Response Time 10 seconds
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Model KSP49C, Spring Prod
Sheet & Billet Applications
12" Rigid Handle
Maximum Temperature 2300°F (1260°C)
Response Time 10 seconds
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