Thermohygrograph Quartz type (-15 to 40°C, 0 to 100%RH)
Quartz clock: 1 day, 7 day and 32 day changed by speed switch
Battery: "C" size battery x 2
Battery Life: 1 year for continuous use
Thermohygrograph Quartz type (-15 to 40°C, 0 to 100%RH)
Quartz clock: 1 day, 7 day and 32 day changed by speed switch
Battery: "C" size battery x 2
Battery Life: 1 year for continuous use