The Monnit Wireless Duct Temperature Sensor uses an NTC type thermistor with UL listed plenum cable to accurately measure temperatures in duct work, while maintaining a sealed environment. Can be easily installed and mounted for long term use.
The standard version of this sensor is powered by two replaceable 1.5 V AA sized batteries (included with purchase). This sensor is also available with a line power option. The line powered version of this sensor has a barrel power connector allowing it to be powered by a standard 3.0 - 3.6 V power supply (Included with Line Power option upgrade). The line powered version also uses two standard 1.5 V AA batteries as backup for uninterrupted operation in the event of line power outage.
Power options must be selected at time of purchase, as the internal hardware of the sensor must be changed to support the selected power requirements.
* Actual range may vary depending on environment.
** Battery life is determined by sensor reporting frequency and other variables.
Duct Temperature Sensor Specifications |
|
| Thermistor Operating Range | -40°C to +150°C ( -40°F to +302°F ) |
| Accuracy @ 25°C | +/- 1° C (±1.8°F @ 77°F) |
| User Calibrated Accuracy | +/- 0.25° C (±0.45°F @ 77°F) |
| Time Constant @ 25°C | 30 sec. |
| Lead Wire Length | 8 ft ( 96 in.) |
| Cable Rating | UL listed plenum cable |
| Weight | 3.7 oz. |
AA Specifications |
|
| Battery Type | 2 Replaceable AA 1.5 V Batteries |
| Dimension | 4.375 in x 2.470 in x 1.12 in |
| Sensing Element | 2.0 - 3.6 V (2 x AA 1.5V Batteries or Optional Power Supply) |
| Device Range | 250 - 300 ft. non-line-of-sight device range* |
| Battery Life | At 1 hour heartbeat setting, included AA batteries will typically last 3-4 Years. ** |
| Max Operating Temperature Using AA Alkaline | -18°C to 55°C (0°F to 130°F) |
| Max Operating Temperature Using AA Lithium | -40°C to 60°C (-40°F to 140°F) |
| Optimal Battery Operating Temperature | +10°C to +50°C (+50°F to +122°F) |
| Enclosure Material | ABS |
433 MHz Specifications |
|
| Operating Frequency | 433 MHz Operating Frequency |
| Certifications | CE Certified and Complies with CISPR 22:2008-09 / EN 55022:2010 - Class B and ETSI EN 300 220-2 V2.4.1 (2012-05) |
