HOBO External Temperature/RH Sensor Data Logger MX2302A

Highlighted Features Convenient wireless setup and download via Bluetooth Low Energy (100-foot range) Retrieve data in hard-to-reach locations Visual alarms alert you to out-of-range conditions Compact, weatherproof housing with built-in mounting View current data in real time with Onset’s free HOBOmobile app Share downloaded data easily from your mobile device Accuracy: +/- 0.2C° and +/- 2.5% RH Temperature Sensor Range MX2301A and MX2305 internal sensors: -40 to 70°C (-40 to 158°F) MX2302A external temperature sensor: -40 to 70°C (-40 to 158°F) MX2303 and MX2304 external sensors: -40 to 100°C (-40 to 212°F), with tip and cable immersion in fresh water up to 50°C (122°F) for one year Accuracy ±0.25°C from -40 to 0°C (±0.45 from -40 to 32°F) ±0.2°C from 0 to 70°C (±0.36 from 32 to 158°F) ±0.25°C from 70 to 100°C (±0.45 from 158 to 212°F), MX2303 and MX2304 only Resolution 0.04°C (0.072°F) Drift 0.01°C (0.018°F) per year RH Sensor (MX2301A, MX2302A only) Range 0 to 100% RH, -40° to 70°C (-40° to 158°F); exposure to conditions below -20°C (-4°F) or above 95% RH may temporarily increase the maximum RH sensor error by an additional 1% Accuracy ±2.5% from 10% to 90% (typical) to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% RH and above 90% RH ±5% typical Resolution 0.01% Drift 1% per year typical Memory 128 KB (63,488 measurements, maximum) Logger Radio Power 1 mW (0 dBm) Transmission Range Approximately 30.5 m (100 ft) line-of-sight Wireless Data Standard Bluetooth Smart (Bluetooth Low Energy, Bluetooth 4.0) Logger Operating Range -40° to 70°C (-40° to 158°F) Logging Rate 1 second to 18 hours Logging Modes Fixed interval (normal, statistics) or burst Memory Modes Wrap when full or stop when full