Multichannel Wireless Environmental Temperature and Hygrometer Set A&D AD-5664SET

Country of origin: China Display items: temperature, relative humidity, heatstroke index, absolute humidity, temperature probe (T1 and T2 are when connected to the temperature probe sold separately) Measurement range (child unit): Temperature 0~50℃, relative humidity 20~90%RH, temperature probe (sold separately) -40~70℃ Measurement accuracy (child unit): Temperature ±1℃ (10~39.9℃), ±2℃ (0~9.9℃, 40~50℃), relative humidity ±5%RH (30~69%RH), ±10%RH (20~29%RH, 70~90%RH), temperature probe (sold separately) ±1℃ (10~39.9℃), ±2℃ (-10~9.9℃, 40~49.9℃), ±3℃ (-40~-10.1℃, 50~70℃) Display range: Temperature -20~70℃, relative humidity 5~99%RH, heatstroke index 0~60℃, absolute humidity 1~99.9g/m3, temperature probe (when connecting the temperature probe sold separately) -40~70℃ Minimum display: Temperature 0.1℃, relative humidity 1%RH, heat stroke index 0.1℃, absolute humidity 0.1g/m3, temperature probe (when connecting the optional temperature probe) 0.1℃ Display update interval (master unit)/measurement interval (child unit): [Main unit] Approximately 2 minutes (FAST), approximately 4 minutes (SLOW), [Slave unit] Approximately 20 seconds Power supply: [Main device] 4 AA alkaline batteries, [Slave device] 2 AA alkaline batteries *The parent device can also be used with an AC adapter (AX-TB250, sold separately)