Single-Element Pyrodetectors


Single-Element Pyroelectric Detectors are often applied for temperature and gas measuring applications in one-channel or dual-channel variants, which is then one output per element. Single-Element variants are offered as thermally compensated devices. The principle of Gas monitor application is called NDIR. NDIR requires Detectors with narrow-band optical filters. Excelitas provides a range of suited filter windows for those gases which show an absoption band in the IR spectral range.

See Related Content below for a technical introductory video to the extensive line of Excelitas Pyroelectric Sensors for motion detection.

IR Single Element Pyro

Product List

Excelitas PYS 3198 Single-Channel Pyrodetector
Part Number
PYS 3198 TC GX (LHi 807)

PYS 3198 Single-Channel Pyrodetector

Excelitas Single-Element Pyrodetectors combine one sensing element with the optical window, making them ideally suited for gas measurement and monitoring applications. The PYS 3198 TC GX (replacement to LHi 807) is a single channel, parallel format temperature-compensated elements detector based on lithium-tantalate (Li-Ta).
Excelitas PYS 3428
Part Number
PYS 3428 GX GY TC (LHi 814)

PYS 3428 Dual-Channel Pyrodetector

As a Dual-Channel, Single-Element Pyrodetector, the PYS 3428 (replacement to LHi 814) includes two single-elements which are each thermally compensated. Each output is optically linked to an individual optical window within the TO-5 Metal Housing. For each window a variety of narrow-band optical filters are available to meet a range of specific sensing requirements.