SPEEDTECH SM5 Digital Depth Sounders, Hp: 081380328072, Email : k00011100@ yahoo.com

Available in two models, one features a built-in transducer and the other features an external transducer on a 12' cable. Waterproof to a depth of 150' ( 50m) both sounders measure depths in feet or meters in a range of 1.8' to 260' ( 0.6m to 79m) . The transducer sends high frequency pulses to the bottom of a body of water where these pulses are reflected back and converted to electrical pulses that are amplified and displayed on the easy-to-read LCD. Minimum Depth : 1.8' ( 0.6m) Maximum Depth : 260' ( 79m) Accuracy : ± 1% Frequency : Built-in transducer model ( 90100) , 400 KHz External transducer model ( 90101) , 200 KHz with a 24° Backlight : Filament light Dimensions : 1.7" x 7.8" Weight : 10 oz Contact Us : Mitra Guna Instruments Up. Pak Harry Ruko Taman Yasmin Sektor VI Jl. Ring Road Utara No.134 Bogor 16113 Telp : 021-37699537, 0251-7543316 Hp : 081380328072 Fax : 0251-7543281