Up to 16 wireless temperature and humidity transmitters can be address by a single receiver.  Each transmitter can be placed up to 50 meters away from the closest transmitter or receiver, expanding the range for larger monitoring applications. 

The easy to read LCD display informs the user of the current readings, the battery level and memory level.

Specifications

• Measurement Range 0 to 50°C & 15 to 90%RH
• Display Resolution 0.1°C & 1%
• Accuracy ±0.5°C (0 to 50°C)  & ±5%RH (At 25°C 50%RH)
• Recording Interval 10 min. (Fixed)
• Logging Capacity  1,440 data sets (One data set consists of readings for temperature and humidity.)
• Recording Mode Overwrite the oldest data when capacity is full
• LCD Display Measurements (Temperature and Humidity: alternating display)
• Communication Method Wireless Communication (internal antenna) between is needed. "log-ez" (RTR-322) and "Dongle" (RTR-300)
• Dimensions Tubular Shape  Dia 36mm × L85mm
• Weight About 62g (including AA Alkaline Battery)
• Power AA Alkaline Battery × 1
• Battery Life About 6 months
• Radio Standard Specifications FCC Part15 Section247 / IC RSS-210 / ETSI EN 300 440-2
• Frequency Range: 2433 to 2482MHz
• Wireless Communication Range About 50 meters [160ft] (if unobstructed and direct)
• Operating Environment Temperature: 0 to 50°C Humidity: 90%RH or less (without condensation)
• Supports Microsoft Windows 10 32/64 Bit, Microsoft Windows 7 32/64 bit, Microsoft  Windows Vista  32bit, Microsoft  Windows  XP 32bit (SP2 or above)