ALTA Wireless Duct Temperature Sensor - AA Battery Powered, 900MHZ

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. Monnit MNS2-9-W2-TS-DT-L08 Features1,200+ foot range12+ year battery life80+ wireless sensorsBank-level AES securityUp in 15 easy setupGlobal ready (900, 920, 868 & 433 MHz) Duct Temperature Sensor SpecificationsThermistor 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 cableWeight: 3.7 oz.Variation SpecificationsSecurity: Encrypt-RF® (256-bit key exchange and AES-128 CTR)ALTA AA SpecificationsBattery Type: 2 Replaceable AA 1.5 V BatteriesDimension: 4.375 in x 2.470 in x 1.12 inSupply Voltage: 2.0 - 3.8 V (2 x AA 1.5V Batteries or Optional Power Supply)Battery Life: At 1 hour heartbeat setting, AA batteries will last up to 10 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: ABSALTA 900 MHz SpecificationsOperating Frequency: 900 MHz Operating FrequencyCertifications: Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1)Complies with Industry Canada standards. (IC: 9794A-G2SC1)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)