
Subminiature Infrared Thermocouples
(0.75)
19
(0.25)
6.4 DIA.
Distance to Spot: 1:2
3.0 (0.1) @ 0 Distance
Higher Performance, Lower Cost
Type K 
Sensor Output
OS36SM Series
OS36SM, 
shown actual size.
Stripped end 
U No Thermal Mass Errors 
U No Moving Parts 
U Self-Powered with 
  No Internal or External  
  Power Requirements
U No Frictional Heat Errors  
  for Moving Surfaces
U  Temperature 
Compensated
Specifications
Ambient Temperature Range: 
-20 to 85°C (-4 to 100°F) 
internal case temperature
Storage Temperature Range:
-20 to 85°C (-4 to 100°F)
Field of View of Sensing Element:
1:2 (distance:spot) 
Minimum spot size: 3 mm (0.1")  
@ zero distance 
Dominant Spectral Response:  
6.5 to 14 microns 
Output Sensor:  
Type K thermocouple 
Impedance: 20 to 60 kΩ (varies  
depending on temperature range) 
 Compatibility Note: This unit’s  
 extremely high impedance output  
 may not allow it to be used with  
 some meters
Emissivity: 0.90 fixed 
Measurement Type: Thermopile 
Response Time (95% of Step 
Change): 150 ms 
Accuracy (Interchangeability): 
1% under factory calibration conditions
Housing: 303 SS 
Cable Assembly: 1 m (36") 
30 AWG solid wire with glass braid 
insulation and tin/copper overbraid
Humidity: Non-condensing 
Power Requirements: None 
Sealed: Hermetically; exceeds 
NEMA 4 and 4X (IP65 and 66) ratings
Weight: Approx 30 g (1 oz) 
Optional Air Purge Jacket 
(OS36SM-APJ):
 Dimensions: 9.5 OD x 76 mm L 
 (0.38 x 3") 
 Easy Mounting: Slip on and  
 tighten mounting ring
TM
Works with 
HHM290 
SUPERMETER®!
PATENTED
GMPW subminiature low 
noise thermocouple 
connector.
Note: Stripped leads are 
standard. To order with a 
GMPW subminiature low-noise 
thermocouple connector pair, 
add suffix “-GMP” to model 
number for additional cost.  
To order with standard-size  
low-noise thermocouple connector 
pair, add suffix “-GST” to model 
number for additional cost.
Ordering Example:  
OS36SM-K-140F-GMP, 
IR thermocouple sensor, 
GMPW low-noise 
connector pair.
Add a 
Connector 
Pair!
 subminiature 
J-55
Tin/copper 
overbraided wire 
for low noise.
Dimensions: mm (inch)
 To Order Visit omega.com/os36sm for Pricing and Details
 Model No.  Description 
 OS36SM-K-(*)  Type K infrared thermocouple
 Specify temperature range code from chart below.
*
Accessories
 Model No.  Description
 OS36SM-MR  Stainless steel mounting ring, with silicone 
 OS36SM-APJ  Aluminum air purge jacket, 9.5 x 76 mm 
 OS36SM-MR-APJ Stainless steel mounting ring for air purge 
 OS36SM-MRR  Metal clamp mounting ring with rubber 
 OS36SM-MRB  Stainless steel mounting ring bracket with 
 OS36SM-RAMR Stainless steel right-angle mounting ring used 
 OS36SM-APJF  Plastic air purge jacket fitting with lock nut, 
 OS36SM-MTF  Plastic fitting with lock & sealing nut and hub, 
  Range Code  Temperature Range
 50F  -18 to 30°C (0 to 85°F)
  80F  0 to 50°C (32 to 120°F) 
  140F  20 to 90°C (70 to 190°F) 
  180F  60 to 105°C (140 to 220°F) 
  240F  80 to 120°C (180 to 250°F) 
  280F  115 to 165°C (240 to 330°F) 
  340F  140 to 190°C (280 to 370°F) 
  440F  160 to 260°C (320 to 500°F)
cushions, 6 mm (0.25") diameter
3
⁄8 x 3") diameter, cooling at 175°C (347°F)
(
jacket with silicone cushions, 10 mm (0.38") 
diameter
cushion, 45.97 x 19.81 mm (1.81 x 0.78")
silicone cushions, 13 mm (0.50") diameter
for mounting through fittings 
sealing nut and hub, 29.7 x 14.99 mm 
(1.17 x 0.59"); PG-7 thread metal clamp  
with rubber cushion for mounting, 
45.97 x 19.81 mm (1.81 x 0.78")
29.7 x 14.99 mm (1.17 x 0.59"), PG-7 thread
termination  
standard.