Garmin Descent T1 Transmitter

Track your every breath when you pair the Descent™ T1 transmitter with a Descent dive computer. Monitor up to 5 tanks via SubWave™ sonar technology so you can dive with multiple tanks or see your buddy’s air levels.

• Physical Dimensions: 3.33” x 1.44” x 1.44” (84.50 x 36.52 x 36.52 mm)
• Battery: 3 V CR123A lithium
• Battery life: Up to 100 hours
• Thread type: 7/16 in. (20 UNF)
• Normal operating temperature: From -20 to 60°C (from -4 to 140°F)
• Underwater operating temperature: From 0 to 40°C (from 32 to 104°F)
• Storage temperature: From -30 to 70°C (from -22 to 158°F)
• Wireless frequency: 2.4 GHz @ 0 dBm
• Surface transmission range (ANT wireless technology): Up to 10 m (33 ft.)
• Underwater transmission range (sonar): Up to 10 m (33 ft.)
• Water rating: Dive 110 meters 
• Pressure rating: 300 bar (4351 psi)