The HH311 is a low cost, high performance handheld meter. It offers a triple display to show the temperature and humidity from a handheld probe and can display data from a separate K type thermocouple connected via a standard SMP type miniature connector to the T2 input. The temperature/humidity probe uses a semiconductor and polymer capacitive sensor. An optional software package is offered to allow data to be read by a PC through the RS232 port.
SPECIFICATIONS Range: 0 to 100% RH, -20 to 60°C (-4 to 140°F) T2 Range: -200 to 1370°C (-328 to 2498°F) Resolution: 0.1 (except T2 for -200 > T2 > 200) Accuracy: ±2.5% RH at 25°C, ±0.7°C (±1.4°F) T2 Accuracy: ±[0.5% rdg ±1°C (2°F)] Humidity Response Time: 75 sec in slowly moving air T1 Response Time: 40 sec in slowly moving air Meter Dimensions: 186 H x 64 W x 30 mm D (7.3 x 2.5 x 1.2') Probe Dimensions: 190 x 15 mm (7.5 x 0.6'), cable stretches to 1.5 m (5') Operating Environment: 0 to 50°C (32 to 122°F), 0 to 90% non-condensing Storage Environment: -10 to 60°C (14 to 140°F), 0 to 80% non-condensing Power Requirements: One 9V battery (included), AC adapter 9 Vdc 10 mA min Plug Diameter: 3.5 x 1.35 mm RS232: 9600 bps, N, 8, 1 serial interface Battery Life: Approx 100 hours with alkaline battery Weight: Approx 320 g (11.3 oz)
Rated 5 out of
Best valueFor the money, the HH311 cant' be beat. They are reliable, repeatable, and accurate.
We have several in our shop and will continue to use them!
Date published: 2016-06-25
Rated 5 out of
Well designed and packagedI purchased this last week and am very satisfied that I did.
Works well. Easy to use. It appears that the reading is accurate.
The unit came with a RS232 connector for data logging. Software included.