The BS Series are non-contact thermometer with separate sensor and amplifier units. The connector cable can be extended with optional cable. A built-in coaxial laser marker allows you easily to target a measuring object. Field of view of BS-02T is 2mm at 50mm. IP6* no dust comes inside the body. IP7* no water comes inside the body by immersing in water for 30 minutes in 1m depth. The first non-contact thermometer of its class incorporating a digital display, setting panel, and output function. Easy setting on display panel of amplifier unit. -TEACH function simplifies emissivity adjustment. (1)  measure temperature with any contact-type thermometer (2)  input the temperature value of (1) (3) the unit automatically calculates the emissivity ratio and stores result in memory.