Monnit ALTA Wireless Carbon Monoxide Sensor
Industrial wireless CO monitoring with threshold alert integration.
Manufacturer: Monnit Corporation
Original Product Family Details
Monnit ALTA / gateways documentation →
Wireless range, power source, frequency region, gateways and calibration options vary by exact part number.
Manufacturer SKU and safety check
Example US 900 MHz ordering code MNS2-9-W2-GS-C1; the manufacturer lists 0–1,000 ppm CO. EU 868 MHz versions have different codes. This commercial AA-housing example does not establish hazardous-area approval.
Original Monnit SKU information, datasheets and order options →
ALTA CO remote monitoring
A wireless carbon monoxide sensor cannot be specified solely by an alarm threshold: confirm the sensing element, gas span, calibration/test schedule, telemetry interval and end-to-end cloud/gateway notification latency. Wireless connection loss should not be misinterpreted as a safe zero-CO reading. Verify regional radio variant and battery option. This product’s manufacturer photo is a particular housing example, not a certificate for a finished life-safety CO alarm.
ALTA CO — live reading versus 7.5-hour time-weighted exposure
| Parameter | Manufacturer fact | Selection/QA significance |
|---|---|---|
| Original Monnit gas range | 0–1,000 ppm CO, accuracy ±(5% of reading + 10 ppm) | Both error components matter at low levels, do not advertise ±5% of reading alone. |
| Sensor element conflict | Monnit gas-product marketing calls it MEMS-based; its technical installation guide calls it an ultra-low-power electrochemical transducer | These manufacturer labels are not equivalent. The exact sensor board/generation technology requires order-revision confirmation, not inferred marketing equivalence. |
| Acquisition and TWA | Support documents say gas read every five seconds, then a 7.5-hour TWA updated every 15 minutes | Monnit’s current web marketing says eight-hour TWA; engineering implementation guide specifies 30 × 15-minute averages = 7.5 hours, explicitly flagged as a revision discrepancy. |
| Temperature compensation | A temperature reading is used to compensate the CO sensing element | CO zero/span and gas cross-sensitivity must be qualified for the real installation temperature. |
| Cloud integration | Instantaneous and average data reported via ALTA radio/Gateway and iMonnit | A wireless telemetry alert is not proof of an EN 50291/UL 2034 compliant stand-alone local audible alarm. |
Radio, calibration and safety boundary
Check exact radio region, gateway compatibility, the delivered maker part number, firmware and calibration revision. A radio/cloud alert is not an independently certified hazardous-area instrument or hardwired emergency alarm, unless the exact installed system and approval evidence explicitly demonstrate it.
Official Monnit sources: Monnit marketed CO range and accuracy · Monnit CO electrochemical sensing guide · Monnit April 2026 TWA engineering explanation.