The ALTA 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.
* 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|
|Security||Encrypt-RF® (256-bit key exchange and AES-128 CTR)|
ALTA AA Specifications
|Battery Type||2 Replaceable AA 1.5 V Batteries|
|Dimension||4.375 in x 2.470 in x 1.12 in|
|Supply Voltage||2.0 - 3.8 V (2 x AA 1.5V Batteries or Optional Power Supply)|
|Battery Life||At 1 hour heartbeat setting, included AA batteries will typically last 6-8 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)|
ALTA 940 MHz Korea Specifications
|Operating Frequency||940.0 MHz - to 946.0 MHz Range|
|Device Range||Device Range Up to 1,200 ft. non-line-of-sight, wireless device range*|
|Security||Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)|