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Fluke TiS20+ Thermal Imager, 120 x 90, IR-Fusion

Description

TiS20+ entry thermal imager with 120 x 90 detector and IR-Fusion

The Fluke TiS20+ is the simplest camera in the Fluke thermal line, built for electricians and facility technicians who need to find hot connections, overloaded circuits and ventilation problems without learning a full thermography workflow. It has a 120 x 90 detector, fixed focus, a 3.5 in touchscreen and continuous IR-Fusion blending. Seven Star LLC supplies the TiS20+ in Oman and the GCC as an independent supplier in Muscat, not affiliated with the manufacturer.

The datasheet covers two variants that share the same body: the base model and the TiS20+ MAX. The difference is the upper temperature limit, listed below.

Variant Temperature range Typical use
TiS20+ -20 °C to +150 °C General electrical and HVAC inspection
TiS20+ MAX -20 °C to +400 °C Hotter targets such as heaters, steam lines and motor frames

TiS20+ technical specifications

Parameter Specification
Manufacturer / part number Fluke / TiS20+
Infrared resolution 120 x 90 (10,800 pixels)
IFOV (spatial resolution) 7.6 mRad, D:S 130:1
Field of view 50 ° H x 38 ° V
Minimum focus distance 50 cm (20 in); fixed focus
Thermal sensitivity 60 mK
Frame rate 9 Hz
Temperature range TiS20+: -20 °C to 150 °C; TiS20+ MAX: -20 °C to 400 °C (not calibrated below 0 °C)
Accuracy ±2 °C or ±2 % at 25 °C, whichever is greater, for targets at or above 0 °C
Spectral band 8 µm to 14 µm
Display 3.5 in LCD touchscreen, 320 x 240
IR-Fusion AutoBlend continuous 0 % to 100 %
Memory Internal 4 GB; slot for optional micro SD up to 32 GB
Wireless 802.11 b/g/n (2.4 GHz)
Battery Lithium-ion smart pack, 5 hours or more continuous without WiFi, 2.5 hours charge
Operating / storage temperature -10 °C to +50 °C / -40 °C to +70 °C
Enclosure / drop IP54 / 2 m
Size / weight 26.7 x 10.1 x 14.5 cm / 0.72 kg
Warranty Two years standard

How fixed focus keeps the TiS20+ simple

Fixed focus means there is nothing to adjust, which removes the most common beginner error. The image is sharp from 50 cm outwards, so standing about arm’s length from a breaker panel works well. The wide 50 by 38 degree field of view lets a technician see an entire panel board in one shot. Because the IFOV is 7.6 mRad, small targets need to be closer; a 7.6 mRad pixel covers about 7.6 mm at one metre, so a terminal screw is only a few pixels wide beyond that distance. IR-Fusion helps by showing the visible picture behind the thermal overlay, and AutoBlend lets you slide between the two by touch.

Asset tagging and file handling

The TiS20+ supports QR-code asset tagging: scan the label on a panel, then take images, and they are filed under that asset when the camera is connected. The camera can also send images to the manufacturer’s cloud or a local server through WiFi. Images are stored as jpeg for use without software, or as radiometric is2 files for analysis in the desktop software, which exports bmp, dib, jpg, tif and tiff.

Selecting the TiS20+ or the MAX variant

  • Choose the base model for electrical rooms, HVAC and building services where temperatures stay under 150 °C.
  • Choose the TiS20+ MAX when targets such as motor housings or steam tracing may exceed 150 °C.
  • Accept that detail is limited; for small targets at distance move to a 320 x 240 model such as the TiS60+ or Ti300+.
  • Specify the 9 Hz variant listed in the ordering information.
  • Add a hand strap, spare battery or car charger if required.

Using and maintaining the TiS20+

Before a first survey, confirm the date and time, because the file names and the asset records rely on them. Hold the camera steady for a moment before pressing the trigger, so that movement does not blur the image at the 9 Hz frame rate. Radiometric files keep the temperature value of every pixel, so a reading can be corrected later if the emissivity was wrong at the time of capture. Jpeg files are smaller and can be opened by anyone, but they cannot be re-analysed.

Charge the battery in the imager, insert an optional micro SD card, and set the emissivity from the material table. Always compare similar components under similar load, because a thermal image only shows surface temperature. Clean the lens gently and keep the camera in its soft bag. The camera is rated IP54, so avoid washing it or using it in heavy spray.

Typical applications of the TiS20+ in Oman and the GCC

In commercial buildings, hospitals and utilities this model checks distribution boards, UPS cabinets and air-conditioning plant. In industrial sites in Oman and the GCC, maintenance crews use it as a screening camera before sending a higher-resolution unit to doubtful spots. High ambient temperatures reduce the contrast between loaded and unloaded conductors, so inspect under load and note the ambient temperature.

Information to send with an RFQ for the TiS20+

  • Part number TiS20+ or the MAX variant
  • Quantity, spare battery and accessories
  • Typical target temperatures
  • Delivery location and time frame
  • Need for calibration documents

Storage, handling and spares for the Fluke TiS20+

Keep the Fluke TiS20+ in its carrying case when it is not in use, and store it in a clean, dry place. Remove or charge the batteries as recommended in the user manual before long storage. Field teams in Oman and the GCC should avoid leaving the instrument in a vehicle in the sun, as high cabin temperatures can exceed the storage range and shorten battery life.

  • Check the instrument, cables, hoses or lenses for damage before each job.
  • Clean the unit with a soft, slightly damp cloth only; do not use solvents unless the manual allows them.
  • Plan a calibration interval that matches your quality system, and keep the calibration certificate with the asset record.
  • Order wear parts and accessories, such as batteries, test leads, hoses or adapters, together with the instrument.

For calibration and test work, it helps to state in your RFQ whether you need an accredited calibration certificate with the Fluke TiS20+, so the right documents can be confirmed with the quotation.

Documents and quotation

A datasheet for this camera and its MAX variant is attached on this page.

Send us the part number TiS20+ or the MAX variant and the quantity and we will confirm availability and a quotation.

Datasheets & Documents
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About brand

Fluke is the American maker of handheld electronic test tools: digital multimeters, clamp meters, insulation testers, process calibrators, thermometers, vibration meters and power quality analysers. John Fluke founded the John Fluke Engineering Company in Springdale, Connecticut, in June 1948 and moved it to Seattle in 1952. Fluke is headquartered in Everett, Washington, was acquired by Danaher in 1998 and has been part of Fortive since Fortive's spin-off from Danaher in 2016.

Seven Star LLC lists Fluke process calibrators, electrical test tools and bench calibrators, and sources them for maintenance teams and calibration laboratories in Oman.

Fluke company profile

Founded June 1948, Springdale, Connecticut, USA, as the John Fluke Engineering Company
Founder John M. Fluke Sr.
Headquarters Everett, Washington, USA (moved to the Seattle area in 1952)
Ownership Danaher from 1998; part of Fortive (NYSE: FTV) since July 2016
Product families Digital multimeters and clamp meters, insulation resistance testers, process and loop calibrators, infrared thermometers and thermal imagers, vibration meters, power quality analysers, Fluke Calibration laboratory standards

Milestones

  • 1948: John Fluke starts the company in Springdale, Connecticut.
  • 1952: The company moves to Seattle
  • 1987: A joint venture with Philips leads to the ScopeMeter handheld oscilloscope.
  • 1998: Danaher acquires Fluke.
  • 2016: Fluke becomes part of Fortive, spun off from Danaher in July.

Fluke calibrators and test tools listed

The main Fluke products on this page fall into three groups, besides other test tools such as further multimeters, a thermometer, an anemometer, a vibration tester and a portable appliance tester:

  • Process tools: the 754 documenting process calibrator with HART, 789 ProcessMeter, 721 dual sensor pressure calibrator and 729 automatic pressure calibrator
  • Electrical test: the 376 FC true-RMS clamp meter with iFlex probe and the 1587 FC insulation multimeter
  • Fluke Calibration bench standards: 5522A, 5502A, 5500A and 5080A multi-product calibrators, the 5720A multifunction calibrator, 8508A reference multimeter, 6100A electrical power standard and 9640A RF reference source

Several of the bench models belong to earlier generations. When a model is no longer produced, we check the manufacturer's documentation and propose the successor it names.

Where Fluke instruments are used

Fluke process calibrators are used for loop checks, transmitter calibration and valve tests in oil and gas, power and water plants. Clamp meters and insulation testers serve electrical maintenance on motors, switchgear and cables. The bench calibrators and reference multimeters are the working standards of electrical calibration laboratories in the GCC, where they calibrate multimeters, clamp meters, process tools and power analyzers.

Fluke products we list

Family Examples
Portable Test & Measurement 117 Electrician’s True-rms Multimeter with, 1507 Insulation Resistance Tester, 1550C 5 kV Insulation Resistance Tester, 1587 FC Insulation Multimeter, 376 FC True-RMS AC/DC Clamp Meter with iFlex, 5080A Multi-Product Calibrator, 5500A Multi-Product Calibrator, 5502A Multi-Product Calibrator and 17 more
Lubrication & Bearing Maintenance 805 FC Vibration Meter

Ordering Fluke instruments: what we need

Send the exact model with its suffix, since versions differ. A Fluke 721, for example, is defined by its two pressure ranges, and a 729 by its maximum pressure. For bench calibrators, list the options you need, such as oscilloscope calibration or power quality options, the line voltage, and the type of calibration certificate you require from the manufacturer. For Fluke multimeters and clamp meters, add the kit contents wanted, such as probes, leads or cases.

Frequently requested Fluke models: Fluke 5522A Multi-Product Calibrator.

Facts checked against published histories of Fluke Corporation and Fortive, October 2026.

FAQ

Questions about the Fluke TiS20+ Thermal Imager, 120 x 90, IR-Fusion

Answers from our engineering team on installation, compatibility and integration.

01What is the detector resolution of the Fluke TiS20+?
The TiS20+ has a 120 x 90 detector, giving 10,800 pixels. The IFOV is 7.6 mRad and the field of view is 50 degrees horizontal by 38 degrees vertical.
02What is the difference between the TiS20+ and the TiS20+ MAX?
The TiS20+ measures -20 °C to 150 °C. The TiS20+ MAX extends the range to 400 °C. Both are otherwise listed with the same detector and body.
03Is the TiS20+ fixed focus?
Yes. It uses fixed focus with a minimum focus distance of 50 cm, so there is no focus adjustment and objects closer than that will be blurred.
04How long does the TiS20+ battery last?
The datasheet lists 5 hours or more of continuous use without WiFi from the lithium-ion smart battery, with a charge time of 2.5 hours.
05Can the TiS20+ send images wirelessly?
Yes. It has 802.11 b/g/n 2.4 GHz WiFi and can upload images to the manufacturer cloud or a local server. A mini USB port is also available for transfer to a PC.