... needle 2, 3 color display lamp 3, power light 4, prepare light 5, power switch/adjustment knob 6, battery cover Technical ... : 160 * 40 * 22 mm weight: about 110 g Operation method: 1, open the power, the power indicator light, instrument began to preheating ... true and false diamond weight and measurement site temperature adjustable light several light emitting diode. 4, take down probe sheath, handheld ...