Abstract: A portable dual lamp set consists of a base frame and a lamp casing mounted to the base frame for housing a germicidal lamp and a black-glass lamp. The base frame has a pedestal and a flange for fastening the lamp casing through an adjustment screw bolt and a screw nut to form an upright position or tilted at selected angles to suit different utilization. The lamp casing may also be detached for using separately. The lamp set provides dual effects for inspection and sterilization.

Abstract: A portable dual lamp set consists of a base frame and a lamp casing mounted to the base frame for housing a germicidal lamp and a black-glass lamp. The base frame has a pedestal and a flange for fastening the lamp casing through an adjustment screw bolt and a screw nut to form an upright position or tilted at selected angles to suit different utilization. The lamp casing may also be detached for using separately. The lamp set provides dual effects for inspection and sterilization.

Abstract: A portable dual lamp set consists of a base frame and a lamp casing which houses a germicidal lamp and a black-glass lamp therein. The base frame has a pedestal and a frame wall bent and extended upwards to allow the base frame standing upright. The lamp casing may be separated from the base frame, or be coupled with the base frame and be stretched or tilted an angle to form different shapes for use. The lamp set has dual effects for inspection and sterilization.

Abstract: A gas detector equipped with a sensor-monitoring feedback function includes a casing and a base board housing a circuit board therein. The circuit board supports a plurality of electronic elements, including a processor unit consisting of a micro control chip (MCU), two output units including a plurality of LED lights and a buzzer, an input unit including a power supply, a voltage stabilizer and a power breaker circuit, an amplification circuit, a sensor and a detection circuit. The detection is capable of monitoring the sensor for normal function and service, and providing feedback constantly so that users will be alerted immediately to malfunction or out of order condition that necessitate repairs and replacement thereby giving users the best possible protection. The gas detector of the invention will also automatically cutoff electricity supply to the sensor for preventing a gas explosion.

Abstract: A bill-receiving device having an upper cover, a print checking region and an ultraviolet ray checking region are installed thereon. Other than receiving bill or being inserted by a credit card, the bill-receiving device has further the function of counterfeit bill and counterfeit card-preventing. Therefore, the loss in business can be reduced.

Abstract: An apparatus for recognizing the authenticity of paper currency, credit cards, and the like, which includes a casing, a mat mounted inside the casing for holding a paper currency, credit card, or the like for recognition, the mat having a semitransparent center area, incandescent lamp means mounted inside the casing and controlled to emit light through the semitransparent center area at the mat from the bottom, a lift cover covered on the casing, an ultraviolet lamp mounted inside the lift cover, a calculator mounted outside the lift cover, and a reflector mounted inside the lift cover to reflect light from the ultraviolet lamp toward the mat.