
Pocket Infrared Thermometers
CAUTION!
 – This product 
is not intended for medical 
use or use on humans
Available with Software/USB and 
Data Logging Function
OS685
Starts at
$
149
OS685, $149, shown actual size.
⻬ Conveniently Clips 
Into Your Pocket 
Like a Pen
⻬ -20 to 500°C (-4 to 932°F) 
Temperature Range
⻬ PC Software and USB
Cable Included 
(OS685U Only)
⻬ Data Logging (Up to 
100 Readings, Model 
OS685U Only)
⻬ High Accuracy and
Repeatability
⻬ Fast Response Time 
⻬ Displays Min, Max, 
Avg and Current 
Temperatures
⻬ Narrow Field of View 
⻬ Laser Sighting 
(OS685L and OS685U)
The ultra compact OS685 has been 
specifically designed to fit into your 
pocket, just like a pen, so that you 
can carry it with you anywhere 
you go.
You simply aim, press the SCAN 
button and read the temperature 
immediately. No fuss. No need to 
focus and no special training.
The OS685 is particularly useful for 
test, inspection and maintenance 
applications in such diverse 
industries as food and beverage,
automotive, plastics and rubber, 
textiles, paper and packaging, 
chemicals and pharmaceuticals, 
HVAC, electrical, asphalting, plus 
many others.
Each unit comes with additional 
functions such as maximum, 
minimum and average temperature 
measurements. It can be LOCKED 
into the ON position if continuous 
measurements are required. The 
last measured value can also be 
held for those situations where it is 
not easy to see the display while 
measuring. OS685U has an 
additional feature of data logging 
to a PC and can record up to 
100 points in memory.
Specifications
Temperature Range: -20 to 500°C 
(-4 to 932°F) 
Accuracy: ±1% of reading or 
±1°C, whichever is greater
Emissivity:
OS685: Fixed at 0.95 
OS685L/OS685U: Adjustable
from 0.3 to 1.0
To Order 
Model No. Price Description 
OS685 $149 Handheld infrared thermometer 
OS685L 179 OS685 with laser sight 
OS685U 209 OS685 with software/USB
Comes complete with 2 “AAA” batteries and operator’s manual. The OS685U includes a cable 
with a USB connector, and software compatible with Windows (versions 95 to 7), which offers 
analog display, trend grah, data logging at intervals from 1 second upwards, sensor 
configuration and tab-delimited store file.
Ordering Example: OS685L, pocket infrared pyrometer with laser sight, $179.
(Specify Model Number)
J-29
Repeatability: ±0.5% of reading or
±0.5°C (0.9°F), whichever is greater 
Response Time: 500 msec
(90% response)
Spectral Response: 8 to 14 microns 
Ambient Temperature Range:
0 to 50°C (32 to 120°F)
Display: 3 
Power Source: Two “AAA” alkaline
batteries (included) 
Reading: °C or °F,
SCAN/HOLD/LOCK/MAX/MIN/AVG 
Display Resolution: 0.1° up to 199.9°,
1° above 200°
Optical Resolution: 8:1 
Relative Humidity: 10 to 95%
non-condensing
Recording Speed (OS685U Only): 
Up to 1 per second 
Dimensions: 163 L x 27 W x 16 mm H
(6.4 x 1 x 0.6") 
Weight: 50 g (1.8 oz) without battery
1
⁄2 digit LCD
AVAILABLE FOR FAST DELIVERY!
 

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