Spyder 00243 Scraper Stacked Multi Blade Skin Pack 2,4,6in CL800 Low battery warning Yes Temp To initiate a manual Low battery warning Yes Temp differential Yes Wireless output Yes Free App Available iOS® & Android™ Differential pressure Yes High altitude compensation In App Selectable refrigerants 57 Selectable units Yes In App temperature split kit and psychrometric calculations Yes In App system refrigerant charging calculations Yes Pass thru ports for easily adding or recovering refrigerant without disconnecting Yes 180 degrees swivel for easy use in cramped work spaces Yes Highly accurate thermistor drifts less than thermocouples and doesn’t require field calibration Yes Magnetic mount Yes Requires Compatible Smart Device LP Twister® Tip utilizes swirl combustion technology to produce a high energy efficient flame Made in the U Quenched and tempered high carbon spring steel retains edge sharpness