Ritmix RAT-505

Blowing: with mouthpiece; Sensor: semiconductor; Measuring range (‰): 0 – 1.99; Max. error (‰): 0.1; Warm-up time (s): 15; Blow time (s): 3; Test time (s): 10; Automatic shutdown; Display backlight; Power source: 3xAAA; Operating temperature (°C): -5 °C ~ +40; Size (mm): 117x61x26;