Single Band, Chirp-Ready TransducersAward Winning Technology Compatible with Single Channel Chirp SoundersThese transducers are offered as thru-hull, in-hull and transom-mount installation options, and are available in many different frequency ranges to accommodate the various displays available to recreational fishermen. Acoustically, the internal design of the transducers is the same but many different mounting options are available.

The ideal solution for sounder systems ranging from 300 W to 1kW, these transducers offer medium frequency bands of 95-155 kHz, 80-130 kHz, or 85-135 kHz as well as the popular, high frequency wide beam transducerwith 150-250 kHz.

AIRMAR first launched the revolutionary Chirp-ready broadband transducer product line with several dual-band offerings in August 2011. We have been adding innovative options to it ever since.

SINGLE BAND CHIRP

AIRMAR®, DEFINING CHIRP TECHNOLOGY.

Single Band Chirp Transducer Comparison

Thru-Hull with Performance FairingB285M1 kW• Medium Frequency:

85-135 kHz• 16 to 11° Beamwidth• Maximum Depth: 1500'• Also available in

transom-mount (TM185M), thru-hull (B175M), and in-hull (M135M) installations

B285HW Wide Beam1 kW• High Frequency:

150-250 kHz• 25° Constant Beam• Maximum Depth: 500’• Also available in

transom-mount (TM185HW), thru-hull (B175HW), and in-hull (M285HW) installations

Thru-Hull

Thru-Hull with Performance FairingB785M600 W• Medium Frequency:

80-130 kHz• 24° to 16° Beamwidth• Maximum Depth: 900'• Also available in a low-

profile, thru-hull (B75M) installation

Thru-HullTransom-Mount

Low profile, Thru-HullB75L300 W• Low Freq.: 40-75 kHz• Available in 0° or 12° tilted

versions only• 32° to 21° Beamwidth• Maximum Depth:1200’

B75M600 W• Med Freq.: 80-130 kHz• 24° to 16° Beamwidth• Maximum Depth: 900'• Also available in a

in-hull (P75M) installation

B75H600 W• High Freq.: 130-210 kHz• 15° to 9° Beamwidth• Maximum Depth: 700’

Low profile, Thru-HullB175L1 kW• Low Freq.: 40-60 kHz • 32° to 21° Beamwidth• Maximum Depth:2500'

B175M• Medium Freq.: 85-135 kHz• 16° to 11° Beamwidth• Maximum Depth:1500'• Also available in

transom-mount (TM185M), and thru-hull (B285M, M135M) installations

B175H• High Freq.: 130-210 kHz• 10° to 6° Beamwidth• Maximum Depth: 1000'

B175HW Wide Beam• High Freq.: 150-250 kHz• 25° Constant Beam• Maximum Depth: 500’• Also available in transom-

mount (TM185HW), and thru-hull (B285HW, M285HW) installations

5 mm(0.19”)

M70 x 2 mm(0.08”) threads

12

9 m

m(5

.09

”)

ø 9

4 m

m(3

.71

”)

70 mm (2 13/16”) hole size

Spacer washer 1

18

mm

(4.6

7”)

10

7 m

m(4

.23

”)

ø 13

4 m

m(5

.26

”)6 mm(0.25”)

3 3/4-4 UNCthreads

98 mm (3 7/8”)hole size

56 mm (2.20”)

Free Area

6.35 mm(0.25”)

134 mm(5.26”)

95.25 mm(3.75”)

No Draft

56 mm(2.20”)

118 mm (4.67”)

42.3 mm(1.66”)

71 mm(2.80”)

86

mm

(3.3

7”)

124 mm(4.88”)

84 mm3.31"

75 mm2.94"

5 mm0.19"

21 mm0.81

2"-12 THREADS

80 mm3.13"

Transom-MountTM150M300 W• Medium Frequency:

95-155 kHz• 26° to 17° Beamwidth• Maximum Depth: 600’• Also available in thru-hull

(B150M) and in-hull (P155M) installations

Low profile, Thru-HullB150M300 W• Medium Frequency:

95-155 kHz• 26° to 17° Beamwidth• Maximum Depth: 600’• Also available in

transom-mount (TM150M) and in-hull (P155M) installations

Transom-MountTM185M1 kW• Medium Frequency:

85-135 kHz• 16° to 11° Beamwidth• Maximum Depth: 1500’• Also available in thru-hull

(B285M) and in-hull (M135M) installations

TM185HW Wide Beam 1 kW• High Frequency:

150-250 kHz• 25° Constant Beamwidth• Maximum Depth: 500’• Also available in

thru-hull (B285HW) and in-hull (M285HW) installations

• Depth & temp.• Boat size:

Up to 8 m (25’)• Includes Transducer ID®

• Depth & temp.• Boat size:

Up to 8 m (25’)• Includes Transducer ID®

• Depth & temp.• Boat size:

Up to 8 m (25’)• Includes Transducer ID®

• Depth & temp.• Boat size:

Up to 8 m (25’)• Includes Transducer ID®

• Depth & temp.• Boat Size:

Up to 11 m (36’)• Includes Transducer ID®

• Depth & temp.• Boat size:

Up to 9 m (30’)• Includes Transducer ID®

Transom-Mount Thru-HullThru-Hull

173 mm(6.80”)

349 mm (13.73”)

77 mm(3.05”)

ø 80 mm(3.13”)

76 mm(3.00”)

2.00”-12UN Threads

ø 51 mm(2.00”)

Thru-Hull

137 mm(5.40”)

15

9 m

m(6

.25

”)

108 mm(4.26”)

260 mm(10.23”)

137 mm(5.40”)

15

9 m

m(6

.25

”)

108 mm(4.26”)

260 mm(10.23”)

568 mm (22.35”)

178 mm (7.00”)

15

2 m

m(6

.00

”)

13

0 m

m(5

.13

”)

M30-2 threads

51 mm(2.02”)

198 mm (7.80”)

13

3 m

m(5

.25

”)

10

7 m

m(4

.20

”)

In-Hull with Mounting BaseM135M1 kW• Medium Frequency:

85-135 kHz• 16° to 11° beamwidth• Maximum Depth:1500’• Also available in

transom-mount (TM185M), and thru-hull (B175M, B285M) installations

M285HW Wide Beam 1 kW• High Frequency:

150-250 kHz• 25° Constant Beam• Maximum Depth: 500’• Also available in

transom-mount (TM185HW) and thru-hull (B175HW, B285HW) installations

140 mm5.52”

ø 171 mm6.75”

In-HullIn-Hull

In-Hull with Mounting BaseP95M300 W • Medium Frequency:

95-155 kHz• 26° to 17° beamwidth• Maximum Depth: 600’• Also available in thru-hull

(B150M), in-hull (P155M) and transom-mount (TM150M) installations

P75M600 W• Medium Frequency:

80-130 kHz• 24° to 16° Beamwidth• Maximum Depth: 900’• Also available as thru-hull

(B785M) and a low profile (B75M) installations

ø 98 mm(3.86”)

89

mm

(3.4

9”)

22°

Fixed 20° tilted version for 16° to 24° hull deadriseFixed 12° tilted version for 8° to 15° hull deadrise

Fixed 0° tilted version for 0° to 7° hull deadrise

• Depth & temp.• Boat size:

Up to 9 m (30’)• Includes Transducer ID®

• Depth only• Boat size:

Up to 8 m (25’)• Includes Transducer ID®

• Depth only• Boat size:

Up to 11 m (36’)• Includes Transducer ID®

©2019 Airmar Technology Corporation SingleBand_Brochure_rI 3/08/19

As Airmar constantly improves its products, all specifications are subject to change without notice. All Airmar products are designed to provide high levels of accuracy and reliability, however they should only be used as aids to navigation and not as a replacement for traditional navigation aids and techniques. Transducer ID® is a registered trademark of Airmar Technology Corporation. Other company or product names mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not affiliated with Airmar.

www.airmar.com

The fish must be in the beam to be represented on the display.As Chirp technology remains at the forefront of echo sounder development, Airmar continues to add transducers for every installation type. When  performance matters most, we’ve got you covered.

The Benefits of Airmar’s Chirp-Ready Transducers• One broadband transducer covers up to 117 kHz of bandwidth –

greater opportunities to detect fish in the water column

• Superior resolution – precise separation between baitfish and gamefish represented on the display with crisp images

• Enhanced bottom fishing – resolve targets close to the bottom or near structure/wrecks

• Amazing detail – recognize haloclines and thermoclines

• Improved signal to noise ratio – find fish and track bottom at high boat speeds