Features ■ QTM Temperature Monitoring System allows the user to pre-set a temperature range and receive an alert if the current temperature exceeds the pre-set range. ■ The operation temperature sensor can be adjusted from -86°C to 100°C (QTM-1) and the unit can be set to alarm on over temperature or under temperature. ■ In case of power failure, the system will integrate with 12V backup battery to remain the function of temperature monitoring up to 48hours.