| Brand | LENNOX |
| Compatible Brand | For LENNOX |
| Unit Type | Unit |
| Voltage | 18-30V |
| Model | 87N53 |
| MPN | T8100-D |
| Country Of Origin | Mexico |
| PN | TELAIRE T8100D 19W51 |
New condition in original box, includes mounting hardware and instructions - Multiple available. Lennox Part Number — 87N53. CO2 Range — 0–2000 ppm. CO2 Accuracy — ±50 ppm + 3% of reading. Display — LCD (CO₂ + Temp).