Maintenance
Temperature monitoring for motors, bearings, gearboxes and areas prone to overheating, supporting maintenance checks on machinery and equipment.
Product range / Liquid crystal thermometers
Liquid crystal thermometers
Self-adhesive Digi-Temp® liquid crystal (TLC) thermometers display the current surface or air temperature. The current reading appears green, and the colours change reversibly as the temperature changes — allowing repeated use without batteries or wiring. The green segment indicates the actual temperature; if no green is visible, the temperature is between the brown segment (just above) and the blue segment (just below). Custom sizes, shapes, ranges, segment counts and logo printing are available on request.
Practical applications
Measure machinery and system temperatures without electronics
A self-adhesive liquid crystal thermometer lets you monitor the current temperature of a motor, pipe, tank or control cabinet. It provides simple support for maintenance, refrigeration and periodic system inspections.
Energy and HVAC
Temperature monitoring for control cabinets, heat exchangers and pipework, as well as ventilation and refrigeration systems in energy and HVAC applications.
Warehouses and facilities
Easy-to-read temperature monitoring for plant rooms, archives and warehouses, providing a clear indication of the current temperature in these spaces.
Full product range details
Digi-Temp Battery-Free Liquid Crystal Thermometers | LC KOLOR
A liquid crystal thermometer is a self-adhesive label with segments containing microencapsulated liquid crystal (TLC). As the temperature rises, the crystal molecules twist and reflect a different wavelength of light — the segment corresponding to the current temperature appears green. This change is reversible, allowing one thermometer to be used over a long period.
The Digi-Temp® series includes horizontal thermometers (7- and 13-segment models and a room thermometer) and vertical thermometers (7-, 8- and 16-segment models). Together, they cover a range from −30 to 120 °C. Applications include machinery, pipework, control cabinets, cold rooms, aquariums, warehouses and plant rooms.
Horizontal thermometers
5 products
Digi-Temp® 7-level horizontal
Industrial thermometer, 12.5 × 45 mm, 5 ranges from −30 to 120 °C
How it works
Compact self-adhesive thermometer with seven segments at 5 °C intervals for machinery, pipes, tanks and control cabinets. Five ranges span −30 °C to 120 °C.
Application and use
For continuous, battery-free temperature readings on machinery, pipes and tanks.
- Range A: −30 °C to 0 °C (−22–32 °F) — available on request
- Range B: 0–30 °C (32–86 °F)
- Range C: 30–60 °C (86–140 °F)
- Range D: 60–90 °C (140–194 °F)
- Range E: 90–120 °C (194–248 °F) — available on request
Technical specifications — Digi-Temp® 7-level horizontal(7)
| Dimensions | 12.5 × 45 mm (0.5″ × 1.77″) |
|---|---|
| Format | horizontal, self-adhesive |
| Scale | °C and °F |
| Number of segments | 7 (5 °C increments) |
| Manufacturer series | 4003 |
| Accuracy | ±1 °C (−30…59 °C), ±2 °C (60…89 °C), ±3 °C (90…120 °C) |
| Shelf life | 12 months at 21 °C and 50% RH |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Measurement ranges
| A°C / °F | -30-22 | -25-13 | -20-4 | -155 | -1014 | -523 | 032 |
|---|---|---|---|---|---|---|---|
| B°C / °F | 032 | 541 | 1050 | 1559 | 2068 | 2577 | 3086 |
| C°C / °F | 3086 | 3595 | 40104 | 45113 | 50121 | 55131 | 60140 |
| D°C / °F | 60140 | 65149 | 70158 | 75167 | 80176 | 85185 | 90194 |
| E°C / °F | 90194 | 95203 | 100212 | 105221 | 110230 | 115239 | 120248 |
The upper value is in °C; the lower value is in °F. The field showing green indicates the current temperature.
Enquire about this variantManufacturer documentation (original, EN)(2)
Original manufacturer documentation (in English).
Manufacturer's video
Product FAQ
Frequently asked questions
What is Digi-Temp® 7-level horizontal best suited to?
For continuous, battery-free temperature readings on machinery, pipes and tanks.
How do I select the right Digi-Temp® 7-level horizontal?
Selection depends on the application conditions and the required readout method. Key features of this solution include range a: −30 °c to 0 °c (−22–32 °f) — available on request and range b: 0–30 °c (32–86 °f).
Digi-Temp® 13-level horizontal
Precise readings in 1 °C increments, 15 × 132 mm
How it works
Long horizontal thermometer with 13 segments at 1 °C intervals. Five ranges from 0 to 60 °C for precise equipment, aquarium, cold room and process monitoring.
Application and use
Long horizontal thermometer with 13 segments at 1 °C intervals. Five ranges from 0 to 60 °C for precise equipment, aquarium, cold room and process monitoring.
- Range A: 0–12 °C (32–54 °F)
- Range B: 12–24 °C (54–75 °F)
- Range C: 24–36 °C (75–97 °F)
- Range D: 36–48 °C (97–118 °F)
- Range E: 48–60 °C (118–140 °F)
Technical specifications — Digi-Temp® 13-level horizontal(7)
| Dimensions | 15 × 132 mm (0.59″ × 5.2″) |
|---|---|
| Format | horizontal, self-adhesive |
| Scale | °C and °F |
| Number of segments | 13 (1 °C increments) |
| Manufacturer series | 4060 |
| Accuracy | ±1 °C (−30…59 °C), ±2 °C (60…89 °C), ±3 °C (90…120 °C) |
| Shelf life | 12 months at 21 °C and 50% RH |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Measurement ranges
| A°C / °F | 032 | 134 | 236 | 337 | 439 | 541 | 643 | 745 | 846 | 948 | 1050 | 1152 | 1254 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B°C / °F | 1254 | 1355 | 1457 | 1559 | 1661 | 1763 | 1864 | 1966 | 2068 | 2170 | 2272 | 2373 | 2475 |
| C°C / °F | 2475 | 2577 | 2679 | 2781 | 2882 | 2984 | 3086 | 3188 | 3290 | 3391 | 3493 | 3595 | 3697 |
| D°C / °F | 3697 | 3799 | 38100 | 39102 | 40104 | 41106 | 42108 | 43109 | 44111 | 45113 | 46115 | 47116 | 48118 |
| E°C / °F | 48118 | 49120 | 50122 | 51124 | 52126 | 53127 | 54129 | 55131 | 56133 | 57135 | 58136 | 59138 | 60140 |
The upper value is in °C; the lower value is in °F. The field showing green indicates the current temperature.
Enquire about this variantManufacturer documentation (original, EN)(2)
Original manufacturer documentation (in English).
Product FAQ
Frequently asked questions
What is Digi-Temp® 13-level horizontal best suited to?
Long horizontal thermometer with 13 segments at 1 °C intervals. Five ranges from 0 to 60 °C for precise equipment, aquarium, cold room and process monitoring.
How do I select the right Digi-Temp® 13-level horizontal?
Selection depends on the application conditions and the required readout method. Key features of this solution include range a: 0–12 °c (32–54 °f) and range b: 12–24 °c (54–75 °f).
Horizontal room thermometer
Room temperature monitoring, 17–28 °C
How it works
Simple self-adhesive thermometer for walls, shelving or equipment. Ten segments display the air temperature in warehouses, offices, archives or plant rooms.
Application and use
For simple air temperature monitoring in warehouses, offices or plant rooms.
- Range: 17–28 °C (62–84 °F)
- Segments: 17, 19, 21, 22, 23, 24, 25, 26, 27, 28 °C
- No batteries or maintenance required
- Self-adhesive mounting
Technical specifications — Horizontal room thermometer(7)
| Dimensions | 12.5 × 89 mm (0.5″ × 3.5″) |
|---|---|
| Format | horizontal, self-adhesive |
| Scale | °C and °F |
| Manufacturer series | 2000 |
| Number of segments | 10 |
| Accuracy | ±1 °C (−30…59 °C), ±2 °C (60…89 °C), ±3 °C (90…120 °C) |
| Shelf life | 12 months at 21 °C and 50% RH |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Measurement ranges
| Range°C / °F | 1762 | 1966 | 2170 | 2272 | 2374 | 2476 | 2578 | 2680 | 2782 | 2884 |
|---|
The upper value is in °C; the lower value is in °F. The field showing green indicates the current temperature.
Enquire about this variantManufacturer documentation (original, EN)(2)
Original manufacturer documentation (in English).
Product FAQ
Frequently asked questions
What is Horizontal room thermometer best suited to?
For simple air temperature monitoring in warehouses, offices or plant rooms.
How do I select the right Horizontal room thermometer?
Selection depends on the application conditions and the required readout method. Key features of this solution include range: 17–28 °c (62–84 °f) and segments: 17, 19, 21, 22, 23, 24, 25, 26, 27, 28 °c.
Digi-Temp® EZ room thermometer 3099
13 segments, 10–32 °C (50–90 °F), 10 × 90 mm
How it works
Slim horizontal Digi-Temp® EZ room thermometer for offices, warehouses, shops and plant rooms. Displays air temperature without batteries or interpreting shades.
Application and use
Slim horizontal Digi-Temp® EZ room thermometer for offices, warehouses, shops and plant rooms. Displays air temperature without batteries or interpreting shades.
- Segments: 50, 55, 60, 65, 68, 70, 72, 74, 76, 78, 80, 85, 90 °F
- Equivalent to approximately 10–32 °C
- Printed °F scale
- Self-adhesive mounting
Technical specifications — Digi-Temp® EZ room thermometer 3099(5)
| Dimensions | 10 × 90 mm (0.4″ × 3.5″) |
|---|---|
| Format | horizontal, self-adhesive |
| Scale | °F |
| Manufacturer series | 3099 (Digi-Temp EZ) |
| Number of segments | 13 |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Measurement ranges
| Range°C / °F | 1050 | 1355 | 1660 | 1865 | 2068 | 2170 | 2272 | 2374 | 2476 | 2678 | 2780 | 2985 | 3290 |
|---|
The upper value is in °C; the lower value is in °F. The field showing green indicates the current temperature.
Enquire about this variantManufacturer documentation (original, EN)(2)
Original manufacturer documentation (in English).
Product FAQ
Frequently asked questions
What is Digi-Temp® EZ room thermometer 3099 best suited to?
Slim horizontal Digi-Temp® EZ room thermometer for offices, warehouses, shops and plant rooms. Displays air temperature without batteries or interpreting shades.
How do I select the right Digi-Temp® EZ room thermometer 3099?
Selection depends on the application conditions and the required readout method. Key features of this solution include segments: 50, 55, 60, 65, 68, 70, 72, 74, 76, 78, 80, 85, 90 °f and equivalent to approximately 10–32 °c.
Digi-Temp® EZ room thermometer 2114
8 segments, 17–31 °C (62–88 °F), 12.5 × 89 mm
How it works
Digi-Temp® EZ room thermometer with eight segments at approx. 2 °C intervals. Wider range than model 2000, covering cool warehouses through to warm plant rooms.
Application and use
Digi-Temp® EZ room thermometer with eight segments at approx. 2 °C intervals. Wider range than model 2000, covering cool warehouses through to warm plant rooms.
- Segments: 17, 19, 21, 23, 25, 27, 29, 31 °C
- Equivalent to 62–88 °F
- No batteries or maintenance required
- Self-adhesive mounting
Technical specifications — Digi-Temp® EZ room thermometer 2114(5)
| Dimensions | 12.5 × 89 mm (0.5″ × 3.5″) |
|---|---|
| Format | horizontal, self-adhesive |
| Scale | °F |
| Manufacturer series | 2114 (Digi-Temp EZ) |
| Number of segments | 8 |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Measurement ranges
| Range°C / °F | 1762 | 1966 | 2170 | 2373 | 2577 | 2781 | 2984 | 3188 |
|---|
The upper value is in °C; the lower value is in °F. The field showing green indicates the current temperature.
Enquire about this variantManufacturer documentation (original, EN)(2)
Original manufacturer documentation (in English).
Product FAQ
Frequently asked questions
What is Digi-Temp® EZ room thermometer 2114 best suited to?
Digi-Temp® EZ room thermometer with eight segments at approx. 2 °C intervals. Wider range than model 2000, covering cool warehouses through to warm plant rooms.
How do I select the right Digi-Temp® EZ room thermometer 2114?
Selection depends on the application conditions and the required readout method. Key features of this solution include segments: 17, 19, 21, 23, 25, 27, 29, 31 °c and equivalent to 62–88 °f.
Vertical thermometers
3 products
Digi-Temp® 7-level vertical
Slim thermometer, 10 × 70 mm, 9–27 °C
How it works
Slim vertical thermometer with seven segments at approximately 3 °C intervals. Ideal for narrow mounting spaces on cold room doors, enclosures and panels.
Application and use
Slim vertical thermometer with seven segments at approximately 3 °C intervals. Ideal for narrow mounting spaces on cold room doors, enclosures and panels.
- Segments: 9, 12, 15, 18, 21, 24, 27 °C
- Equivalent to 50–80 °F
- Choice of °C or °F scale
- Self-adhesive mounting
Technical specifications — Digi-Temp® 7-level vertical(7)
| Dimensions | 10 × 70 mm (0.394″ × 2.75″) |
|---|---|
| Format | vertical, self-adhesive |
| Scale | °C or °F |
| Manufacturer series | 2005 (°C) / 2005B (°F) |
| Number of segments | 7 |
| Accuracy | ±1 °C (−30…59 °C), ±2 °C (60…89 °C), ±3 °C (90…120 °C) |
| Shelf life | 12 months at 21 °C and 50% RH |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Measurement ranges
| Range°C / °F | 950 | 1255 | 1560 | 1865 | 2170 | 2475 | 2780 |
|---|
The upper value is in °C; the lower value is in °F. The field showing green indicates the current temperature.
Enquire about this variantManufacturer documentation (original, EN)(2)
Original manufacturer documentation (in English).
Product FAQ
Frequently asked questions
What is Digi-Temp® 7-level vertical best suited to?
Slim vertical thermometer with seven segments at approximately 3 °C intervals. Ideal for narrow mounting spaces on cold room doors, enclosures and panels.
How do I select the right Digi-Temp® 7-level vertical?
Selection depends on the application conditions and the required readout method. Key features of this solution include segments: 9, 12, 15, 18, 21, 24, 27 °c and equivalent to 50–80 °f.
Digi-Temp® 8-level vertical
6 ranges G–L, covering −3 to 49 °C overall
How it works
Short vertical thermometer with eight segments. Six range options let you select the right scale for refrigerated conditions or monitoring warm equipment.
Application and use
Short vertical thermometer with eight segments. Six range options let you select the right scale for refrigerated conditions or monitoring warm equipment.
- Range G: −3 °C to +4 °C (26–40 °F)
- Range H: 6–13 °C (42–56 °F)
- Range I: 14–22 °C (58–72 °F)
- Range J: 23–31 °C (74–88 °F)
- Range K: 32–40 °C (90–104 °F)
- Range L: 41–49 °C (106–120 °F)
Technical specifications — Digi-Temp® 8-level vertical(7)
| Dimensions | 12.5 × 63.5 mm (0.5″ × 2.5″) |
|---|---|
| Format | vertical, self-adhesive |
| Scale | °C and °F |
| Number of segments | 8 |
| Manufacturer series | 4090 |
| Accuracy | ±1 °C (−30…59 °C), ±2 °C (60…89 °C), ±3 °C (90…120 °C) |
| Shelf life | 12 months at 21 °C and 50% RH |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Measurement ranges
| G°C / °F | -326 | -228 | -130 | 032 | 134 | 236 | 338 | 440 |
|---|---|---|---|---|---|---|---|---|
| H°C / °F | 642 | 744 | 846 | 948 | 1050 | 1152 | 1254 | 1356 |
| I°C / °F | 1458 | 1660 | 1762 | 1864 | 1966 | 2068 | 2170 | 2272 |
| J°C / °F | 2374 | 2476 | 2678 | 2780 | 2882 | 2984 | 3086 | 3188 |
| K°C / °F | 3290 | 3392 | 3494 | 3596 | 3798 | 38100 | 39102 | 40104 |
| L°C / °F | 41106 | 42108 | 43110 | 44112 | 45114 | 47116 | 48118 | 49120 |
The upper value is in °C; the lower value is in °F. The field showing green indicates the current temperature.
Enquire about this variantManufacturer documentation (original, EN)(2)
Original manufacturer documentation (in English).
Product FAQ
Frequently asked questions
What is Digi-Temp® 8-level vertical best suited to?
Short vertical thermometer with eight segments. Six range options let you select the right scale for refrigerated conditions or monitoring warm equipment.
How do I select the right Digi-Temp® 8-level vertical?
Selection depends on the application conditions and the required readout method. Key features of this solution include range g: −3 °c to +4 °c (26–40 °f) and range h: 6–13 °c (42–56 °f).
Digi-Temp® 16-level vertical
3 wide ranges A–C, from −3 to 49 °C
How it works
Long vertical thermometer with 16 segments. One strip covers a wide temperature range, ideal for tracking changes throughout the day or an operating cycle.
Application and use
Long vertical thermometer with 16 segments. One strip covers a wide temperature range, ideal for tracking changes throughout the day or an operating cycle.
- Range A: −3 °C to +13 °C (26–56 °F)
- Range B: 14–31 °C (58–88 °F)
- Range C: 32–49 °C (90–120 °F)
- Self-adhesive mounting
Technical specifications — Digi-Temp® 16-level vertical(7)
| Dimensions | 12.5 × 127 mm (0.5″ × 5″) |
|---|---|
| Format | vertical, self-adhesive |
| Scale | °C and °F |
| Number of segments | 16 |
| Manufacturer series | 4002 |
| Accuracy | ±1 °C (−30…59 °C), ±2 °C (60…89 °C), ±3 °C (90…120 °C) |
| Shelf life | 12 months at 21 °C and 50% RH |
Data based on the manufacturer's documentation. Full datasheets are available in the documentation below.
Measurement ranges
| A°C / °F | -326 | -228 | -130 | 032 | 134 | 236 | 338 | 440 | 642 | 744 | 846 | 948 | 1050 | 1152 | 1254 | 1356 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B°C / °F | 1458 | 1660 | 1762 | 1864 | 1966 | 2068 | 2170 | 2272 | 2374 | 2476 | 2678 | 2780 | 2882 | 2984 | 3086 | 3188 |
| C°C / °F | 3290 | 3392 | 3494 | 3596 | 3798 | 38100 | 39102 | 40104 | 41106 | 42108 | 43110 | 44112 | 45114 | 47116 | 48118 | 49120 |
The upper value is in °C; the lower value is in °F. The field showing green indicates the current temperature.
Enquire about this variantManufacturer documentation (original, EN)(2)
Original manufacturer documentation (in English).
Product FAQ
Frequently asked questions
What is Digi-Temp® 16-level vertical best suited to?
Long vertical thermometer with 16 segments. One strip covers a wide temperature range, ideal for tracking changes throughout the day or an operating cycle.
How do I select the right Digi-Temp® 16-level vertical?
Selection depends on the application conditions and the required readout method. Key features of this solution include range a: −3 °c to +13 °c (26–56 °f) and range b: 14–31 °c (58–88 °f).
Questions to consider before choosing
Frequently asked questions
How can I measure surface temperature without an electronic sensor?
A reversible liquid crystal thermometer is attached directly to the surface being monitored. The active coloured segment indicates its current temperature.
How does Digitemp differ from a Thermax strip?
Digitemp displays the current temperature and responds repeatedly to changes. Thermax permanently records the highest temperature reached and has a separate, detailed product page.
Free quotation
Enquire about: Liquid crystal thermometers
We help you choose the right variant and threshold for your application — we usually prepare a quotation within 1 working day. You can also call: +48 22 666 82 95.
Other product groups
See also
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Eight temperature-sensitive zones for a permanent temperature record.
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Thermochromic labels and liquid crystals
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Thermochromic paints and pigments
Paints, pigments and coatings that change colour with temperature.
Medical and blood donation solutions
Forehead thermometers and indicators for medicines and blood containers.
Temperature and humidity data loggers
USB data loggers with PDF reports for dry ice, pasteurisation and humidity monitoring.
ShockWatch shock indicators
Single-use ShockWatch impact indicators for shipments and products.
Shock recorders and condition monitors
ShockLog, gView and SpotBot — impact, vibration and environmental monitoring.
TiltWatch tilt indicators
TiltWatch — check whether shipments stayed upright in transit.