HMS M-Series


HMS M-Series

The HMS M-Series are single thermopile sensors in small TO-46 packages with lens optics. They are designed for non-contact, short distance temperature measurements. Two different lens optics are available. In combination with the different thermopile chip sizes, a FOV between 12° and 28° is possible. The sensors are also available as modules with an integrated analog or digital signal conditioning unit for an easier application.

Features and Benefits

  • Small TO-46 housing
  • 3 different thermopile sensor chips available
  • Two different lens options
  • FOV from 12° to 28°
  • Optional thermistor temperature reference
  • Large operating range -20°C to 120°C



 HMS M11HMS M1c1HMS M21Unit
Element size0.6²0.76²1.2²mm²
Voltage response223063V mm² / W
Sensitivity585244V / W
Resistance R_TP867584kOhm
TC of resistance R_TP0.020.020.02% / K
Noise383537nV / Hz½
Detectivity0.9e81.1e81.4e8cm Hz½ / W
Time constant< 5810ms
Thermistor reference100100100kOhm
Temp. coeff. of thermistor394039403940K
Operating temperature-20 .. 120-20 .. 120-20 .. 120°C
Storage temperature-40 .. 120-40 .. 120-40 .. 120°C


Field of View

SensorHMS M11 L3.0HMS M1c1 L3.0HMS M21 L3.0HMS M21 L2.1
Field of View12°14°16°28°

Filter Options

Temperature Measurements