Abstract: The present disclosure provides a forehead thermometer that displays different colors according to detected temperatures and a control circuit thereof, which belong to the technical field of forehead thermometers. The forehead thermometer includes a forehead thermometer body, wherein the forehead thermometer body comprises a housing, an indicator light, a liquid crystal display (LCD) screen comprising a backlight board which is adapted to light up in different colors according to different detected temperatures. The LCD screen is disposed on an upper end face of the housing, and the indicator light is disposed on a side of the housing, and wherein the indicator light is a transparent light guide body capable of guiding light, and an outer end face of the indicator light is located outside the housing; and a light guide plate capable of guiding the light emitted from the backlight board to the indicator light is fixedly disposed in the housing.

Abstract: A laser level is provided. The laser level has a housing and a laser inside the housing. The laser level also has a laser fixing plate and a front cover plate. The laser is disposed in a mounting slot of the laser fixing plate. A sliding block is disposed in a space formed between the laser fixing plate and the front cover plate. A minus-shaped laser beam splitter and a cross-shaped laser beam splitter are disposed on the sliding block in a vertical direction. Both sides of the sliding block are further respectively provided with a sliding block pusher disposed in a way of passing through two sides of the housing. The sliding block pushers can move the sliding block in the vertical direction. The laser level can achieve positional exchange between the minus-shaped laser beam splitter and the cross-shaped laser beam splitter.

Abstract: In view of the drawback that the detection efficiency will be significantly reduced since the result is viewed after measurement in forehead thermometers in the prior art, the present disclosure provides a forehead thermometer that displays different colors according to detected temperatures and a control circuit thereof, which belong to the technical field of forehead thermometers. The forehead thermometer includes a forehead thermometer body, the forehead thermometer body being provided with an indicator light at a side, which can light up in different colors according to different detected temperatures. The forehead thermometer is provided at a side with the indicator light which can light up in different colors according to detected temperatures, so that whether the body temperature of the detected person is normal can be judged by simply viewing the different colors of the indicator light at the side of the forehead thermometer, which can significantly improve the detection efficiency.

Abstract: The application provides an automatic leveling laser marking indication device, comprising a housing, a display mechanism, a laser seat mounted with a laser, a sensor seat mounted with a sensor, and a base connected with the housing, wherein the display mechanism is mounted at a top of the housing via a display seat, the laser seat and the sensor seat are mounted inside the housing and are connected with each other, the sensor seat is mounted at the base, the display mechanism comprises a first light emitting window disposed at the top of the display seat and second light emitting windows disposed around the display seat, and the interior of the display seat is mounted with a LED light. According to the application, the markings of horizontal and vertical lines can be accurately positioned only by adjusting the angle of product to be ?5°.

Abstract: A laser level is provided. The laser level has a housing and a laser inside the housing. The laser level also has a laser fixing plate and a front cover plate. The laser is disposed in a mounting slot of the laser fixing plate. A sliding block is disposed in a space formed between the laser fixing plate and the front cover plate. A minus-shaped laser beam splitter and a cross-shaped laser beam splitter are disposed on the sliding block in a vertical direction. Both sides of the sliding block are further respectively provided with a sliding block pusher disposed in a way of passing through two sides of the housing. The sliding block pushers can move the sliding block in the vertical direction. The laser level can achieve positional exchange between the to minus-shaped laser beam splitter and the cross-shaped laser beam splitter.

Abstract: The present invention discloses an electronic circuit for acousto-optoelectronic angle indication and a level gauge thereof. The electronic circuit for acousto-optoelectronic angle indication comprises a main control circuit (a), a power circuit (b), a key circuit (c), a sensor module circuit (d), an LED indicator module circuit (e), a buzzer module circuit (f) and a data storage module (g). The control circuit (a) comprises a microcontroller (U2), a capacitor (C2), a capacitor (C3), a capacitor (C4), a capacitor (C5), a capacitor (C6), a capacitor (C8), an electrolytic capacitor (E1), a resistor (R11), a resistor (R12) and a resistor (R20). The invention realizes an acousto-optoelectronically indicated design circuit device with high precision, so that the current angular value state can be accurately displayed through acoustic and photoelectric changes by simply placing a measuring device on a test plane.

Abstract: The invention discloses a pointer type angle measuring device, comprising a shell consisting of a front cover and a rear cover, windows respectively arranged on the front cover and the rear cover, respectively; a front transparent cover and a rear transparent cover respectively arranged on the windows of the front cover and the rear cover; a pointer, arranged within an inner cavity of the shell inside the front transparent cover and the rear transparent cover; a dial of circular shape, fixed at the outer edge of the windows on the shell. The double-sided readout pointer type angle measuring device with lighting of the invention is convenient to be used in measurement and correction of horizontal and vertical angles of objects when it is inconvenient to be read from single side.

Abstract: The invention belongs to the field of measuring tools, particularly relates to a pointer-type angle measuring device with wireless power supply for lighting for measuring angle state of an object. The invention includes a housing, a dial, a pointer and an electronic circuit. Wherein, the electronic circuit includes a wireless power supply circuit and a wireless power receiving and lighting circuit, and the wireless power receiving and lighting circuit is set on the pointer. The invention is characterized in that the pointer can illuminate, and the invention is convenient for people to use in a low light environment, to measure angle of the object.