MTTS LM-800 Lightmeter/4meter

MTTS LM-800 Lightmeter/4meter

The 4meter is used for the determination of the actual level of sources required for effective medical therapy. The tool is useful for both hospital technicians and doctors who want to verify whether the medical equipment can deliver all the functions as designed.
The primary light meter function provides precise measurement of the intensity of the blue light spectrum that is necessary to treat jaundice in infants. This measurement allows health professionals to ensure phototherapy units are working correctly and determine when a phototherapy device or its bulbs need to be replaced.
The device can be used for any phototherapy unit with LEDs, fluorescent bulbs or compact bulbs. When measuring a single-sided phototherapy machine, it will measure the light using the front sensor. When measuring a double-sided phototherapy, the device reads the intensity from both sides, using the sensors on the front and back of the device. It then displays the sum of the values from each side.

Light Meter: Use

In this video, you will learn how to use the MTTS LIGHT METER to measure the intensity of the blue light spectrum that is necessary to treat jaundice in infants. MTTS LIGHT METER measures the intensity of any type of phototherapy device, including single-sided and double-sided machines. It determines the actual amount of light reaching the patient’s skin.

Key Features

Key Functions

1. Blue light irradiance measurement:

– verify irradiance of photo therapy devices during preventive maintenance and normal use

2. O2 measurement:

– verify purity of O2 sources (tank, generator, wall) during preventive maintenance

– verify mechanical blender and other blender during preventive maintenance

– leak search inside device and along external tubes during repair and equipment inspection

3. Pressure measurement:

– verify pressure at Y connector during use

4. Flow measurement:

– verify flow output of CPAP, Hi-flow and ventilators during preventive maintenance

5. High pressure measurement:

 verify hospital gas sources and check them for fluctuations

6. Temperature and humidity measurement:

 verify the temperature uniformity of the radiant warmers

 check temperature and humidity inside the incubators

Light Irradiance Sensor
– spectral response chosen to match wavelength used for Jaundice treatment
– two sided measurement for convenient measurement of double-sided phototherapy devices such as MTTS Firefly.

– touch screen liquid-crystal display (LCD)
– low battery
– 5 second result display time
– system failure
– out of measurement

– long battery life.
– standard AAA alkaline batteries are easy to replace

More Information: Lightmeter / 4meter | LifeKit by MTTS (

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