Manual SDW series digital point Wenyi the SDW electronic thermometer, temperature measuring instruments, imports LSI chips and high-precision temperature sensing element, it has a high degree of interference immunity, stability and reliability LCD LCD digital display readings are clear, accurate, low power consumption, fast response time. The Three Guarantees Our products case of quality problems, within six months is responsible for free repair (except sensor) after the expiry of the damage, the small additional cost fee. Temperature range, such as caused by the use of over-temperature sensor is damaged instrument should pay attention to the use of the instrument should be the responsibility of the user. * Note 1. Use Digital unstable and measurement accuracy error is too large, please check: the laminated battery voltage, operating voltage (power measurement) If you decline to below 7.5V LOBAT words should re Note replace the battery replacement battery polarity. Such as a fixed value (heating, digital does not change), please check: the sensor jack is bad, the wiring is disconnected, please pay attention to the polarity when wiring. The instrument is suitable for a variety of gases, liquids, cold storage and steam medium temperature measurement, especially for the central heating unit, indoor temperature measurement. * Technical parameters * (1). Measuring range: from -50 to 150 ° C (2) Resolution: 0.1 ° C (3) temperature measurement accuracy: ± 0.5% (4) power supply: DC 9V (laminated battery) ( 5) Sampling rate: 3 times / s (6) Power consumption: less than 0.01W