Altimeters

Thommen Pocket Altimeter/Barometer

This pocket altimeter is widely used by the USGS for elevation checks such as channel elevation which can be an indicator of certain conditions, such as the amount of channel icing or summer water temperature that can affect fish. It works on the barometric principle to determine altitude. The operating mechanism is very sturdy and shock resistant.

The instrument is easily read and features a 19 jeweled temperature compensated, precision movement. The altitude scale is linear and has a uniform accuracy over the entire measuring range.

The altimeter/barometer measures altitude up to 6,000 meters and barometric pressure between 790 and 553 millimeters of mercury. It operates efficiently from -20 to 40 degrees centigrade. Accuracy of altitude measurements is ±10 meters. The unit is 2.5 inches by 2.7 inches by 0.8 inches, and weighs 3.2 ounces.

307-001      Thommen TX22 - Metric reading to 6000m. Direct reading to 10m. Interpretation to 5m.     0.5 lb.

307-002      Thommen TX16 - Imperial, reads to 15,000 ft.Direct reading to 20 ft with interpretation to 10 ft.      0.5 lb.

307-003      Thommen TXC - Leather case for altimeters      0.1 lb.

 

Pretel Digital Altimeter - Model K2 and A2

Pretel Digital Altimeters give quick and accurate results. They are easy to use with one-handed operation of two buttons. These rugged altimeters are shockproof with no moving parts to break, and tough shockproof case, resistant to shocks, vibrations, dust and humidity. Automatic temperature compensation ensures highly accurate readings from -30° C to +50°C.

Additional features: Altitude variation since last calibration, barometric pressure trend, cumulative vertical ascent and descent, speed of climb and chronograph.

Small: fits in your palm, dimensions: 3 1/8" x 2 1/2" x 1/8" (80mm x 65mm x 23mm)

Light: weighs only 90 grams (5 oz.) including batteries. ¥ Uses 2 AAA batteries

307-008      Model K2 - Range: -305 to 6000m (-1000 to 19,600 ft.) Resolution: 1m/3ft.      0.5 lb.

307-009      Model A2 - Range: -305 to 6000m (-1000 to 19,600 ft) Resolution: 5m/15 ft      0.5 lb.

206-015      AAA Batteries (2 pack)      0.3 lb.