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The HTS E21 F3.91/F4.26 (180) Multi-channel Thermopile Sensor is ideal for gas sensing, with with 2 channels, a 4.26 um channel for CO2 detection and a 3.91 um reference channel.
The HTS Multichannel Sensors comprise two or four independent sensor chips for a multichannel gas concentration measurement. Typically one to three of the optical channels contain a gas specific filter window and the other channel, equipped with a filter with center wavelength where no gas absorption occurs, serves as reference. On request we can also provide Multichannel Sensors with customer filters
| Element Size | 1.2 mm2 |
| Sensitivity | 86 V/W |
| Detectivity | 2.7 E8 cm Hz1/2 / W |
| Time Constant | 10 ms |
| Channels | 2 |
| Filters | 4.26 um (CO2) and 3.91 um (reference) |
