General Descriptions
CH2115S is a CMOS digital clinical thermometer IC for measuring body temperature in Centigrade(℃) or Fahrenheit(℉) mode by its bonding option or by switch option. It also provides alarm and auto power off functions. The other electronic components are LCD display, thermistor,1.5V battery, ON/OFF switch, buzzer, resistors and capacitors
Features
◆ Single 1.5V battery operation.
◆ Single-chip CMOS construction
◆ Centigrade or Fahrenheit measurement can be selected by bonding option or switch option
◆ Measurement range:
While CH2115S-1 or CH2115S-2, +32.0~+41.9℃ (+90~+107.9℉)
While CH2115S-3, +32.0~+43.9℃ (+90~+ 111.9℉)
◆ Resolution: 0.1℃(0.1℉),
Measurement accuracy: ±0.1℃(±0.2℉).
◆ One-key input switch for power ON/OFF and ℃/℉ alternating
◆ Backlight driver
◆ Highest temperature held
◆ Auto power off after 8 min 40 sec (CH2115S-1 or CH2115S-2) or 10 min (CH2115S-3)
◆ Display the last measured temperature