ALTA Industrial Wireless Low Temperature Sensor, 900MHZ

Monnit wireless low temperature sensors use an RTD to accurately measure temperatures from -200°C to +162°C. Perfect for low temperature critical applications such as freezers and coolers. User customization allows you to set the frequency of sensor readings and create notifications from the system when certain criteria have been met or exceeded. The Low Temperature Sensor is not meant for wet, damp, high humidity environments. This sensor should only be operated in dry, low humidity environments. Should you need a temperature sensor that operates at extreme temperatures and can withstand getting wet or condensed on, please consider our Thermocouple Sensors. Available with NIST traceable certificate good or 13 months. (In the Customize section above select NIST Certified.) NIST certified sensors orders may take up to 6 weeks to prepare, certify and ship. Already have NIST certified sensors and now need to renew the certification? NIST Re-certification Monnit MNS2-9-IN-TS-LT-L03 Features1,200+ foot range12+ year battery life80+ wireless sensorsBank-level AES securityUp in 15 easy setupGlobal ready (900, 920, 868 & 433 MHz) Low Temp - RTD / Thermistor SpecificationsSensing Element: DIN 43760 Class BThermal Time Constant: 15 sec max.RTD Temperature Range: -200°C to +162°C (-328°F to +325°F)RTD Accuracy at 0°C: +/- 3.3°C Standard (+/- 0.5°C Calibrated)Weight: 3.7 oz.Variation SpecificationsSecurity: Encrypt-RF® (256-bit key exchange and AES-128 CTR)ALTA Industrial SpecificationsSupply Voltage: 2.0 - 3.8 VDCBattery Type: Replaceable 3.6V, 1800mAH (single AA sized)Battery Life: At 1 hour heartbeat setting, battery will last up to 10 years.**Max Operating Temperature: -40° to 85°C (-40° to 185°F)Optimal Battery Operating Temperature: +10°C to +50°C (+50°F to +122°F)Solar Power Option: 3.0 VDC Solar Panel 600 mAH Rechargeable Battery (>2000 Charge Cycles - 80% of Initial Capacity)Charging Temperature Range: 0° to 45°C (32° to 113°F) Max Temperature Range: -20° to 60°C (-4° to 140°F)Enclosure Material: IP65, NEMA 4X, CE rated, sealed, weatherproof enclosureUL Rating: UL Listed to UL508-4x specifications (File E194432)Dimension: 3.7 in x 2.32 in x 1.38 inALTA 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)