PHB 318 Lutron is humidity, temperature meter and barometer. a portable 3 in 1 instrument that simultaneously measures humidity, barometric pressure and ambient temperature.
Features :
- Barometer, humidity, temperature meter, three in one, professional.
- Barometer unit : hPa, mmHg, inHg.
- Humidity with dew point measurement.
- Temperature measurement with C, F unit.
- Fast response time for humidity measurement.
- Atmosphere measurement with high accuracy.
- Bright LCD display.
- Microprocessor circuit ensures high accuracy and provides special function and features.
- Records maximum and minimum readings with recall.
- Auto power off saves battery life.
- Operates from DC 1.5V [ UM4/AAA ] x 4 PCs batteries.
- Durable, long lasting components, enclosed in strong, compact ABS plastic housing.

General Specifications :
- Barometer unit : hPa, mmHg, inHg.
- Humidity unit : %RH
- Dew Point : C, F
- Circuit : Custom one chip of microprocessor LSI circuit.
- Sensor Structure :
- Barometer : Semiconductor.
- Humidity : Capacitance humidity sensor, Semiconductor.
- Temperature : Semiconductor.
- Data Hold : Freeze the display reading.
- Memory Recall : Maximum & Minimum value.
- Sampling Time : Approx. 1 second.
- Power off : auto shut off saves battery life or manual off.
- Operating Temperature : 0 to 50C
- Operating Humidity : Less than 80% R.H
- Power Supply : DC 1.5V battery [ UM4/AAA ] x 4 PCs
- Power Current : Approx. DC 3.0 mA.
- Weight : 157 g/ 0.35 LB.
- Dimension : 210 x 40 x 40 mm [ 8.3″ x 1.6″ x 1.6″ ]