Feature
●【LCD Display and Support Backlight】The handheld air quality tester is made of ABS material, and the excellent performance of high-temperature resistance and impact resistance makes the air pressure meter have a long service life. The large display screen supports LCD backlight to make the operation more convenient and the displayed data clearer and easier to read. Short press the backlight button to turn off or enable the backlight function.
●【30s Countdown & Real-Time Monitoring & Buzzer Reminder】The indoor air quality meter is very sensitive, and it will count down for the 30s after turning on the meter, and the detected data will be clearly displayed on the LCD screen, and the system will evaluate the risk level (GOOD or OK or POOR ) when the value exceeds the normal range, the buzzer will sound quickly. The alarm sound is on by default and can be turned on or off with the mute button.
●【Built-in Rechargeable Battery and Low Battery Reminder】The carbon dioxide detector has a built-in rechargeable lithium battery and is packaged with a USB cable. When fully charged, the detector can continue to work for 6-7 hours. When the battery level is too low, the battery box in the upper right corner of the screen will flash to remind the user to charge, and it can be used while charging without affecting the monitoring results.
●【Measures 4 Parameters and Wide Application】This digital tachometer gauge can measure photoelectric speed, light source flicker frequency, contact speed and contact line speed. The digital tachometer rpm meter is widely used in moving and rotating equipment such as electric fans, exhaust fans, conveyor belts, lawn mowers, motors, washing machines, paper machines, automobiles, ships, motorcycles, trucks, airplanes, scooters and tractors.
●【High Precision & Large Measuring Range & Switchable 4 Units】The digital tachometer gauge adopts a high-speed microprocessor chip, which makes it more stable and reliable, and the accuracy reaches ± (0.05% × measured value + 1). Measuring Range: Contact speed is 0.10-1999.9m/min, light source flicker frequency is 0.1-6000.0Hz, photoelectric speed is 9.0-99999RPM, contact speed is 1.0-19999RPM. The handheld tachometer supports switching between 4 units: RPM, Hz, m/min and ft/min.
Description