MY-91HY Humidity Meter Lutron is a professional, intelligent meter that combines humidity, temperature and dew point measurement into a single portable device.
Features :
- Humidity + temperature + dew point are combined into one meter, intelligent and professional.
- 0.01% RH resolution for the humidity reading, 001 degree resolution for the temp reading.
- Fast humidity measuring response time.
- High accuracy and high precision.
- Dew point measurement.
- Manual and auto manual data logger.
- Data logger function with flexible sampling time selection, can save max. 1000 reading data with recall.
- Just few panel buttons, easy operation.
- Microprocessor circuit assures maximum possible accuracy, provides special functions and features.
- Large LCD with two display, easy readout.
- Heavy duty & compact housing case, designed for easy carry out & operation.
- Records maximum and minimum readings with recall.
- Auto shut off saves battery life.
- Data hold function for freezing the desired value on display.
- RS 232 PC serial interface.
- Show the humidity & temperature the desired value on display.
- RS 232 PC serial interface.
- Show the humidity & temperature values on the LCD display at same time.
- Built in low battery indicator.
- Wide humidity & temp measuring range.

General Specifications :
- Display : LCD size : 52 x 38 mm dual function LCD display.
- Measurement Unit :
- Humidity : %RH
- Temperature : C or F
- Dew point : C or F
- Response Time : 5 to 30 seconds typically.
- Temperature Compensation : Automatic temp. compensation for the humidity function.
- Sampling time of data logger :
- manual : push the data logger button once will save data one time.
- Auto : 1,2,10,30,60,600,1800,3600 seconds.
- Data Hold : freeze the display reading.
- Memory Recall : maximum & minimum value.
- Sampling time : Approx. 0.8 second
- Power off : Auto shut off saves.
- Data Output : RS 232 PC serial interface.
- Operating Temperature : 0 to 50C
- Operating Humidity : Main instrument : Less than 85% RH. Probe : 0 to 95% RH.
- Power Supply : DC 1.5V battery.
- Power Current : Approx DC 4.6 mA
- Weight : 336 g / 0.74 LB.