Check temperatures on moving material and rotating components with Anritsu U and UX Series surface temperature probes. These contact probes use guard or wheel arrangements selected to suit the measurement surface.
Start with the surface material, diameter or curvature, temperature and linear speed. Then select the head size, contact construction and mounting arrangement needed to maintain suitable contact.
Anritsu U Series probes for moving and rotating surface measurements.
U and UX: compare the constructions
| Feature | U series | UX series |
| Measurement |
Contact measurement of moving and rotating surfaces. |
Contact measurement with a movable contact-support head. |
| Head movement |
Conventional U construction; select the required geometry. |
±8° along the longer direction and ±4° along the shorter direction. |
| Thermocouple |
Type E or Type K. |
Type E or Type K. |
| Head options |
Fluororesin guard, bearing wheel or fluororesin wheel. |
Fluororesin guard, bearing wheel or fluororesin wheel. |
| Configuration choice |
Includes additional elbow, direct-head and no-grip arrangements, depending on model. |
Select from the UX-specific pipe angles and standard-grip configurations. |
UX contact support helps the sensing head follow the target surface. Confirm the complete configuration rather than changing a U model prefix to UX and assuming the remaining ordering code is interchangeable.
Temperature range by contact construction
| Construction code | Guard or wheel | Contact section | Temperature range |
| 1 |
Fluororesin guard |
Polyimide coated |
-50 to 250°C |
| 2 |
Bearing wheel |
Polyimide coated |
-50 to 200°C |
| 3 |
Fluororesin wheel |
Polyimide coated |
-50 to 250°C |
| 4 |
Fluororesin guard |
Fluororesin coated |
-50 to 200°C |
| 5 |
Bearing wheel |
Fluororesin coated |
-50 to 200°C |
| 6 |
Fluororesin wheel |
Fluororesin coated |
-50 to 200°C |
| 7 |
Fluororesin guard |
Uncoated |
-50 to 250°C |
| 8 |
Bearing wheel |
Uncoated |
-50 to 200°C |
| 9 |
Fluororesin wheel |
Uncoated |
-50 to 250°C |
The construction code is the middle digit of the three-digit head designation, for example the second digit in U-111 or UX-221. Temperature limits apply to the sensing head, not automatically to the grip, cable or connector.
Head size and nominal response
| Head family | Guard-head dimensions | Wheel-head dimensions | Nominal response |
| U-1 / UX-1 |
25 × 32 mm |
37 × 36 mm |
2 seconds |
| U-2 / UX-2 |
29 × 60 mm |
40 × 66 mm |
3.5 seconds |
Existing U model configurations
U Series configuration guide. Use the separate UX ordering specification when selecting a contact-support model.
| Probe | Type E model | Type K model |
U-111  |
U-111E-01-D0-1-TC1-ANP |
U-111K-01-D0-1-TC1-ANP |
U-211  |
U-211E-01-D0-1-TC1-ANP |
U-211K-01-D0-1-TC1-ANP |
U-114  |
U-114E-01-D0-1-TC1-ANP |
U-114K-01-D0-1-TC1-ANP |
U-221  |
U-221E-01-D0-1-TC1-ANP |
U-221K-01-D0-1-TC1-ANP |
U-118  |
U-118E-01-D0-1-TC1-ANP |
U-118K-01-D0-1-TC1-ANP |
U-211 without grip  |
U-211E-01-D0-0-TC1-W |
U-211K-01-D0-0-TC1-W |
UX contact-support model references
| Type E model | Type K model | Temperature range | Response |
| UX-111E-01-D0-1-TC1-ANP |
UX-111K-01-D0-1-TC1-ANP |
-50 to 250°C |
2 s |
| UX-211E-01-D0-1-TC1-ANP |
UX-211K-01-D0-1-TC1-ANP |
-50 to 250°C |
3.5 s |
| UX-113E-02-D0-1-TC1-ANP |
UX-113K-02-D0-1-TC1-ANP |
-50 to 250°C |
2 s |
| UX-221E-00-D0-1-TC1-ANP |
UX-221K-00-D0-1-TC1-ANP |
-50 to 200°C |
3.5 s |
U guard models: D0 reference list
The following tables preserve the U model references previously listed on this page. These references omit the final cable and connector suffixes; confirm the complete order code and combination availability.
| U-100 series | U-200 series |
U-111K-00-D0-1 U-111K-01-D0-1 U-111K-02-D0-1 U-111K-03-D0-1 U-111K-04-D0-1 U-111K-05-D0-1 |
U-211K-00-D0-1 U-211K-01-D0-1 U-211K-02-D0-1 U-211K-03-D0-1 U-211K-04-D0-1 U-211K-05-D0-1 |
U-112K-01-D0-1 U-112K-02-D0-1 U-112K-03-D0-1 U-112K-04-D0-1 U-112K-05-D0-1 |
U-212K-01-D0-1 U-212K-02-D0-1 U-212K-03-D0-1 U-212K-04-D0-1 U-212K-05-D0-1 |
U-113K-01-D0-1 U-113K-02-D0-1 U-113K-03-D0-1 U-113K-04-D0-1 U-113K-05-D0-1 |
U-213K-01-D0-1 U-213K-02-D0-1 U-213K-03-D0-1 U-213K-04-D0-1 U-213K-05-D0-1 |
U-114K-00-D0-1 U-114K-01-D0-1 U-114K-02-D0-1 U-114K-03-D0-1 U-114K-04-D0-1 U-114K-05-D0-1 |
U-214K-00-D0-1 U-214K-01-D0-1 U-214K-02-D0-1 U-214K-03-D0-1 U-214K-04-D0-1 U-214K-05-D0-1 |
U-115K-01-D0-1 U-115K-02-D0-1 U-115K-03-D0-1 U-115K-04-D0-1 U-115K-05-D0-1 |
U-215K-01-D0-1 U-215K-02-D0-1 U-215K-03-D0-1 U-215K-04-D0-1 U-215K-05-D0-1 |
U-116K-01-D0-1 U-116K-02-D0-1 U-116K-03-D0-1 U-116K-04-D0-1 U-116K-05-D0-1 |
U-216K-01-D0-1 U-216K-02-D0-1 U-216K-03-D0-1 U-216K-04-D0-1 U-216K-05-D0-1 |
U-117K-00-D0-1 U-117K-01-D0-1 U-117K-02-D0-1 U-117K-03-D0-1 U-117K-04-D0-1 U-117K-05-D0-1 |
U-217K-00-D0-1 U-217K-01-D0-1 U-217K-02-D0-1 U-217K-03-D0-1 U-217K-04-D0-1 U-217K-05-D0-1 |
U-118K-00-D0-1 U-118K-01-D0-1 U-118K-02-D0-1 U-118K-03-D0-1 U-118K-04-D0-1 U-118K-05-D0-1 |
U-218K-00-D0-1 U-218K-01-D0-1 U-218K-02-D0-1 U-218K-03-D0-1 U-218K-04-D0-1 U-218K-05-D0-1 |
U-119K-00-D0-1 U-119K-01-D0-1 U-119K-02-D0-1 U-119K-03-D0-1 U-119K-04-D0-1 U-119K-05-D0-1 |
U-219K-00-D0-1 U-219K-01-D0-1 U-219K-02-D0-1 U-219K-03-D0-1 U-219K-04-D0-1 U-219K-05-D0-1 |
U guard models: curved-surface references
D* below is the original placeholder for the applicable curved-surface guard code. It is not a complete ordering suffix. Confirm the roller diameter and compatible D1, D2, D3 or D4 arrangement.
| U-100 series | U-200 series |
U-111K-00-D*-1 U-111K-01-D*-1 U-111K-02-D*-1 U-111K-03-D*-1 U-111K-04-D*-1 U-111K-05-D*-1 |
U-211K-00-D*-1 U-211K-01-D*-1 U-211K-02-D*-1 U-211K-03-D*-1 U-211K-04-D*-1 U-211K-05-D*-1 |
U-112K-01-D*-1 U-112K-02-D*-1 U-112K-03-D*-1 U-112K-04-D*-1 U-112K-05-D*-1 |
U-212K-01-D*-1 U-212K-02-D*-1 U-212K-03-D*-1 U-212K-04-D*-1 U-212K-05-D*-1 |
U-113K-01-D*-1 U-113K-02-D*-1 U-113K-03-D*-1 U-113K-04-D*-1 U-113K-05-D*-1 |
U-213K-01-D*-1 U-213K-02-D*-1 U-213K-03-D*-1 U-213K-04-D*-1 U-213K-05-D*-1 |
U-114K-00-D*-1 U-114K-01-D*-1 U-114K-02-D*-1 U-114K-03-D*-1 U-114K-04-D*-1 U-114K-05-D*-1 |
U-214K-00-D*-1 U-214K-01-D*-1 U-214K-02-D*-1 U-214K-03-D*-1 U-214K-04-D*-1 U-214K-05-D*-1 |
U-115K-01-D*-1 U-115K-02-D*-1 U-115K-03-D*-1 U-115K-04-D*-1 U-115K-05-D*-1 |
U-215K-01-D*-1 U-215K-02-D*-1 U-215K-03-D*-1 U-215K-04-D*-1 U-215K-05-D*-1 |
U-116K-01-D*-1 U-116K-02-D*-1 U-116K-03-D*-1 U-116K-04-D*-1 U-116K-05-D*-1 |
U-216K-01-D*-1 U-216K-02-D*-1 U-216K-03-D*-1 U-216K-04-D*-1 U-216K-05-D*-1 |
U-117K-00-D*-1 U-117K-01-D*-1 U-117K-02-D*-1 U-117K-03-D*-1 U-117K-04-D*-1 U-117K-05-D*-1 |
U-217K-00-D*-1 U-217K-01-D*-1 U-217K-02-D*-1 U-217K-03-D*-1 U-217K-04-D*-1 U-217K-05-D*-1 |
U-118K-00-D*-1 U-118K-01-D*-1 U-118K-02-D*-1 U-118K-03-D*-1 U-118K-04-D*-1 U-118K-05-D*-1 |
U-218K-00-D*-1 U-218K-01-D*-1 U-218K-02-D*-1 U-218K-03-D*-1 U-218K-04-D*-1 U-218K-05-D*-1 |
U-119K-00-D*-1 U-119K-01-D*-1 U-119K-02-D*-1 U-119K-03-D*-1 U-119K-04-D*-1 U-119K-05-D*-1 |
U-219K-00-D*-1 U-219K-01-D*-1 U-219K-02-D*-1 U-219K-03-D*-1 U-219K-04-D*-1 U-219K-05-D*-1 |
U bearing-wheel models: D0 references
| U-100 series | U-200 series |
U-121K-00-D0-1 U-121K-01-D0-1 U-121K-02-D0-1 U-121K-03-D0-1 U-121K-04-D0-1 U-121K-05-D0-1 |
U-221K-00-D0-1 U-221K-01-D0-1 U-221K-02-D0-1 U-221K-03-D0-1 U-221K-04-D0-1 U-221K-05-D0-1 |
U-122K-01-D0-1 U-122K-02-D0-1 U-122K-03-D0-1 U-122K-04-D0-1 U-122K-05-D0-1 |
U-222K-01-D0-1 U-222K-02-D0-1 U-222K-03-D0-1 U-222K-04-D0-1 U-222K-05-D0-1 |
U-123K-01-D0-1 U-123K-02-D0-1 U-123K-03-D0-1 U-123K-04-D0-1 U-123K-05-D0-1 |
U-223K-01-D0-1 U-223K-02-D0-1 U-223K-03-D0-1 U-223K-04-D0-1 U-223K-05-D0-1 |
U-124K-00-D0-1 U-124K-01-D0-1 U-124K-02-D0-1 U-124K-03-D0-1 U-124K-04-D0-1 U-124K-05-D0-1 |
U-224K-00-D0-1 U-224K-01-D0-1 U-224K-02-D0-1 U-224K-03-D0-1 U-224K-04-D0-1 U-224K-05-D0-1 |
U-125K-01-D0-1 U-125K-02-D0-1 U-125K-03-D0-1 U-125K-04-D0-1 U-125K-05-D0-1 |
U-225K-01-D0-1 U-225K-02-D0-1 U-225K-03-D0-1 U-225K-04-D0-1 U-225K-05-D0-1 |
U-126K-01-D0-1 U-126K-02-D0-1 U-126K-03-D0-1 U-126K-04-D0-1 U-126K-05-D0-1 |
U-226K-01-D0-1 U-226K-02-D0-1 U-226K-03-D0-1 U-226K-04-D0-1 U-226K-05-D0-1 |
U-127K-00-D0-1 U-127K-01-D0-1 U-127K-02-D0-1 U-127K-03-D0-1 U-127K-04-D0-1 U-127K-05-D0-1 |
U-227K-00-D0-1 U-227K-01-D0-1 U-227K-02-D0-1 U-227K-03-D0-1 U-227K-04-D0-1 U-227K-05-D0-1 |
U fluororesin-wheel models: D0 references
| U-100 series | U-200 series |
U-131K-00-D0-1 U-131K-01-D0-1 U-131K-02-D0-1 U-131K-03-D0-1 U-131K-04-D0-1 U-131K-05-D0-1 |
U-231K-00-D0-1 U-231K-01-D0-1 U-231K-02-D0-1 U-231K-03-D0-1 U-231K-04-D0-1 U-231K-05-D0-1 |
U-132K-01-D0-1 U-132K-02-D0-1 U-132K-03-D0-1 U-132K-04-D0-1 U-132K-05-D0-1 |
U-232K-01-D0-1 U-232K-02-D0-1 U-232K-03-D0-1 U-232K-04-D0-1 U-232K-05-D0-1 |
U-133K-01-D0-1 U-133K-02-D0-1 U-133K-03-D0-1 U-133K-04-D0-1 U-133K-05-D0-1 |
U-233K-01-D0-1 U-233K-02-D0-1 U-233K-03-D0-1 U-233K-04-D0-1 U-233K-05-D0-1 |
U-134K-00-D0-1 U-134K-01-D0-1 U-134K-02-D0-1 U-134K-03-D0-1 U-134K-04-D0-1 U-134K-05-D0-1 |
U-234K-00-D0-1 U-234K-01-D0-1 U-234K-02-D0-1 U-234K-03-D0-1 U-234K-04-D0-1 U-234K-05-D0-1 |
U-135K-01-D0-1 U-135K-02-D0-1 U-135K-03-D0-1 U-135K-04-D0-1 U-135K-05-D0-1 |
U-235K-01-D0-1 U-235K-02-D0-1 U-235K-03-D0-1 U-235K-04-D0-1 U-235K-05-D0-1 |
U-136K-01-D0-1 U-136K-02-D0-1 U-136K-03-D0-1 U-136K-04-D0-1 U-136K-05-D0-1 |
U-236K-01-D0-1 U-236K-02-D0-1 U-236K-03-D0-1 U-236K-04-D0-1 U-236K-05-D0-1 |
U-137K-00-D0-1 U-137K-01-D0-1 U-137K-02-D0-1 U-137K-03-D0-1 U-137K-04-D0-1 U-137K-05-D0-1 |
U-237K-00-D0-1 U-237K-01-D0-1 U-237K-02-D0-1 U-237K-03-D0-1 U-237K-04-D0-1 U-237K-05-D0-1 |
Accuracy, response and durability conditions
| Item | Published specification |
| Tolerance, 0–200°C |
±2.5°C on a stationary, flat and smooth metal surface. |
| Tolerance, above 200–250°C |
±3.0°C for configurations rated to 250°C. |
| Response test |
Time to reach 99% response on a flat and smooth metal surface. |
| Durability test |
More than 1500 continuous hours within tolerance on a flat, smooth metal surface moving at 200 m/min. |
| Pipe material |
SUS316 stainless steel. |
| Grip material |
Polyacetal. |
| Service |
Listed as repairable, subject to inspection and service conditions. |
The durability-test speed is not a universal maximum operating speed. Surface roughness, contact pressure, temperature and movement affect measurement performance and wear. Confirm the selected probe’s speed limit for the actual application.
Selecting a probe for a roller or moving surface
Provide the roller diameter and rotational speed, or the linear surface speed. For a rotating cylinder, both diameter and RPM are needed to establish the speed at the contact point.
Describe the surface finish, direction of movement and available mounting space. Include whether measurement is intermittent or continuous and whether the probe will be handheld or installed in a fixture.
Choose an accessible measurement position and a suitable mounting arrangement that keeps the operator and cable clear of moving machinery.
Request a quotation
Contact us for pricing and availability. Please include:
- U or UX series, if already selected.
- Surface material, finish and operating temperature.
- Roller diameter and RPM, or linear surface speed.
- Required head size, guard or wheel construction.
- Probe angle, reach and mounting arrangement.
- Type E or Type K, instrument model, cable and connector.
- Quantity and full existing model code for replacement enquiries.