Specification: Measuring range: 0~25% The principle of sensor:Electrochemical principle, life for two year Resolution:0.1% Response time:<50 sec Recovery time:<50 sec To alarm:Acoustic,optical double alarm, can set thealarm value,an alarm sound is divided into 80dB Operating temperature:-20~50°C Operating humidity:0-95%RH(Non Gel) Temperature measuring:√ Power Supply: Rechargeable lithium-ion battery, 3.7 Volts (include) |