MTTS 4-Meter LM-800 Multifunction Medical Equipment Tester – Phototherapy Light Meter, Oxygen Analyzer & Flow Meter

The MTTS 4-Meter LM-800 is a portable, multifunction medical equipment testing instrument designed to measure neonatal phototherapy irradiance and, with compatible optional sensors, oxygen concentration, gas flow, pressure, temperature, and humidity. Developed by Medical Technology Transfer and Services (MTTS), the instrument enables healthcare professionals and biomedical engineers to evaluate the performance of neonatal phototherapy machines, oxygen concentrators, CPAP systems, ventilators, incubators, and radiant warmers. Its primary function is measuring therapeutic blue-light irradiance from neonatal phototherapy equipment. The device features two integrated light sensors, allowing measurement of both single-sided and double-sided phototherapy systems. The MTTS 4-Meter features a touchscreen LCD, portable handheld construction, and battery-powered operation, making it suitable for hospital equipment inspection, preventive maintenance, performance verification, and biomedical engineering applications. With additional measurement accessories, it offers a versatile solution for testing multiple types of neonatal and respiratory medical equipment. Key Features & Specifications Specification Details Product Type Multifunction Medical Equipment Tester Model LM-800 Product Name MTTS 4-Meter Primary Measurement Phototherapy Light Irradiance Phototherapy Compatibility LED and blue fluorescent phototherapy machines Spectral Response 400–520 nm Single-Sided Irradiance Range 0.1–150.0 µW/cm²/nm Double-Sided Irradiance Range 0.1–300.0 µW/cm²/nm Irradiance Resolution 0.1 µW/cm²/nm Irradiance Accuracy ±3% of reading Light Sensors Dual-sided Oxygen Concentration Range 0–100% FiO₂, optional sensor Gas Flow Range 0–160 LPM, bidirectional, optional sensor Low Pressure Range 0–100 cmH₂O, optional sensor High Pressure Range ±100 PSI, optional sensor Temperature Measurement 5–60°C, optional sensor Relative Humidity Measurement 0–100% RH, optional sensor Display Touchscreen LCD Measurement Modes Absolute, Relative and Multi-point Dimensions 148 × 73 × 17 mm Weight Approximately 200 g Power Supply Replaceable alkaline batteries Battery Runtime Up to 120 hours, according to published product specifications Operating Temperature 10–40°C Operating Humidity 30–90% RH, non-condensing Calibration Interval Every 2 years Standard Warranty 12 months, subject to manufacturer policy