Senseair LP8
Manufacturer-verified NDIR CO₂ sensor or OEM sensor module. The specifications below are based on the manufacturer’s official product information for the displayed reference.
Key Specifications
Product Positioning
Senseair LP8 is part of SENSEAIR’s NDIR CO₂ sensing portfolio. AirAlign keeps this page focused on manufacturer-published specifications so products can be compared without mixing unverified reseller data.
Official Resources
For design-in, calibration, compliance and purchasing decisions, verify the current documentation directly with SENSEAIR.
View Senseair LP8 Official PageAirAlign is an independent informational resource and is not affiliated with SENSEAIR. Specifications can change; manufacturer documentation remains authoritative.
Senseair LP8 — host-controlled 3.6mC sampling and ABC policy
Original Senseair documentation identifies concrete product codes and operating conditions. Accuracy, power, communications and calibration claims below are restricted to the specified variant.
| Engineering item | Manufacturer value | Design meaning |
|---|---|---|
| Core gas/technology | NDIR CO₂, article 005-0-0001 with pin headers or 005-0-0003 without | Mechanical connection choices are not interchangeable without PCB redesign. |
| Current maker range | 0–10,000 ppm, ±(50 ppm + 3% reading) | An older regional catalog cites 0–2,000 ppm; confirm the installed sensor revision before final span claims. |
| Sampling energy | 3.6 mC per measurement, or 11.9 mJ at 3.3 V battery supply | Powering the unit off between readings is part of the intended integration. |
| Power supply and peak | 2.9–5.5 V, up to 125 mA during readings; manufacturer lists ~31 µA average duty-cycle reference | MCU/radio regulator must survive IR source pulse and battery internal resistance. |
| Host protocol | UART with a Modbus-like low-power host/slave protocol | Physical bus is not natively a 24V/RS485 industrial field transmitter. |
| Baseline control | ABC is host-controlled; source describes an approximately eight-day background cycle | Software must count actual elapsed time and issue calibration/control command. |
| Operating scope | <85% RH; intended long battery operation, >15-year sensor design | A fresh-air baseline algorithm may fail in permanently enriched CO₂ spaces. |
Application, firmware and calibration considerations
LP8 specifically expects the host to control the sampling cadence and automatic baseline correction schedule; it is not appropriate to attach power permanently and assume a generic 5-second sensor behavior. At a one-minute duty cycle the module can exhibit low average current, but its 125mA instantaneous demand can cause regulator brownouts. Integrate factory calibration and ABC handling into firmware and log firmware version, sensor age and measurement interval. Current Senseair HTML states a broader 10kppm family band than an older regional 2kppm catalog; avoid guaranteeing a particular full-scale for unknown production revisions.
Official model source: Senseair product model, technical specification and version list. Regionally older catalogs may differ; the actual ordered revision and reference procedure control final procurement and calibration.
AirAlign model engineering note · 25 October 2026. OEM specifications are not independent finished-device conformity, clinical measurement approval or active stock confirmation.