PT-S80 & PT-U80


Portable non-contact thermometer

High performance, easy operation, durable package with convenient measurement


-30 to 600°C


  • Long focus design with 150mm square from 5m
  • Interactive with USB interface (PT-U80)
  • Large display with automatic EL back-light
  • Wide temperature range
  • Audible and visible high/low alarm

Optical Specifications

  • The optical resolution value stated above are at minimum 90% energy
  • The size of measuring object should be sufficiently larger than the spot size
  • The temperature  value displayed on LCD is the average temperature within the spot size




Model PT-S80 PT-U80
Temperature range -30 to 600°C -30.0 to 600°C
Optical resolution Φ30mm/1000mm (D:S=33.1) Φ30mm/1000mm (D:S=33.1)
Sensing element/Spectral response Thermopile/8 to 14µm see column 1
Accuracy (ε≠0.95 -30.0 to 0°C:3°C / 0.1°C to 200°C:2°C / 201°C to 600°C: 1°C see column 1
Repeatability 1°C of reading 1°C of reading
Response time 0.5sec/90% 0.5sec/90%
Temperature resolution -30.0 to 199.9°C:0.1°C, 200 to 600°C:1°C see column 1
Emissivity adjustment(ε) 0.95/0.85/0.70 selectable 0.3 to 1.20 adjustable/0.01 step
Continuous measuring mode ON/OFF selectable
USB putput Available
Alarm functions audible and visible high/low alarm (ON/OFF selectable) see column 1
Display back-light EL back-light EL back-light
Data logging 1 point 35 point (max 150 point)
Display hold 15 seconds 15 seconds
Display function NOR/MAX/MIN NOR/MAX/MIN
Power supply AA alkaline battery x 2 pcs see column 1
Battery life 15 hours (with max load) see column 1
Ambient temperature 0 to 50ºC 0 to 50ºC
Relative humidity 35 to 85%Rh (non-condensing) see column 1
Storage temperature -10 to 60ºC -10 to 60ºC
Protection class IP67 IP67
Sighting Laser (Class II) Laser (Class II)
Dimension HxWxD=182mmx56mmx38mm see column 1
Weight (incl battery) 230g 230g
Standard accessories AA alkaline battery (2pcs), instructruction manual, protective case, USB cable (PT-U80) see column 1

*Specifications subject to change without notice.

  1. The exclusive software for PT-U80 is available at the Optex website. It is not provided with the hardware. The exclusive software is available at URL:
  2. We recommend use with personal computer and Windows 2000 or XP operating system, equipped with USB connector for proper function USB Rev1.1 conformity.
  3. Operation may fall depending on peripheral devices connected to the PC.


Checking for hot spots in an electrical panel

Checking for abnormal heating in a bearing