How deep can it read?

From 0.7 m to 100 m (about 2 ft to 328 ft). Accuracy drops in very shallow water below the minimum.

Does it need batteries?

Yes, four AAA batteries, which are not included. The screen has LED backlighting for low light.

Can I use it for ice fishing?

Yes. Cut a hole in the ice and place the sonar under the water, or lower it on the cable with the float.

How do I mount the transducer?

Fix it to the boat hull, use the float on the cable, mount it on a pole, or place it under the ice. The 7.5 m cable sets the reach.

Does it show what the bottom is?

Yes, it displays grass, rock or sand so you can judge the seabed. It also gives the approximate fish location and depth.

Is it good for saltwater?

It works in fresh and salt water within its depth range, but the 45-degree beam and basic screen suit shallow to mid-depth fishing best.

Where is the 100m Portable Sonar LCD Fish Finder cheapest?

At Walmart, for $61.20, as of our latest check.

100m Portable Sonar LCD Fish Finder

Best price now

$61.20at WalmartChecked Nov 1

Prices are checked against each store and labelled with when.

Visit Walmart

100m Portable Sonar LCD Fish Finder

Best price now

$61.20at WalmartChecked Nov 1

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $61.20 at Walmart on Nov 1.

Our take on the 100m Portable Sonar LCD Fish Finder

A handheld sonar fish finder with a TN LCD screen and a round transducer on a 7.5 m cable. It reads depth from 0.7 m to 100 m, marks fish and shows whether the bottom is grass, rock or sand, with a 45-degree beam and an audible fish alarm. It suits shore anglers, kayakers and ice fishers who want a cheap depth and fish readout without a boat-mounted unit. Against fixed boat sonar it gives less detail and no GPS or charting, and the 4 AAA batteries are not included.

Best forBank and pier anglers checking depthKayak and small-boat fishingIce fishing through a drilled holeBeginners who want a simple fish alarm

Pros

Reads depth from 0.7 m to 100 m
Shows bottom type: grass, rock or sand
Audible fish alarm and fish depth scale
Switchable meters or feet
45-degree beam with 7.5 m cable
Mounts on hull, float, pole or under ice

Cons

No GPS, charting or waypoints
Basic TN LCD, not a high-resolution screen
Batteries not included
Cable-limited to 7.5 m from the unit
Single-beam sonar gives limited fish detail

100m Portable Sonar LCD Fish Finder prices at every store

WalmartNew
Availability unknown
$61.20Checked Nov 1
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100m Portable Sonar LCD Fish Finder price history

Lowest price we've seen: $61.20 on Nov 1 at Walmart. Tracked across 1 store since Nov 1.

About the 100m Portable Sonar LCD Fish Finder

This portable sonar fish finder shows the approximate location of fish and the depth of the water on an LCD screen. It also shows the bottom type, including grass (short and tall), sand and rocks. A fish depth scale and an audible fish alarm are included.

A round transducer sensor on a 7.5 m cable has a 45-degree beam angle. The sensor can be fixed to a boat hull, or attached to the cable's removable float to sit in the water. It can also be fixed on a pole and pushed into position in the water, or placed under the water through a hole cut in the ice.

Depth readings run from 0.7 m to 100 m (2 ft to 328 ft). You can switch the readout between meters and feet. The unit runs on 4 AAA batteries, which are not included.

Display: TN/anti-UV LCD with LED backlighting
Depth range: 0.7 m to 100 m (2 ft to 328 ft)
Beam angle: 45 degrees
Sensor cable: 7.5 m, round transducer sensor
Units: Selectable meters or feet
Bottom detection: Grass (short and tall), sand and rocks
Alarm: Audible fish alarm
Power: 4 x AAA batteries (not included)
Operating temp: -20°C to 70°C (-4°F to 158°F)
Mounting: Boat hull, floating on the cable, on a pole, or under a hole in the ice
Dimensions: 120 x 65 x 30 mm
Net weight: 173 g
Package weight: 633 g
Package size: 260 x 175 x 65 mm
In the box: 1 fish finder, 1 round sonar sensor with 7.5 m cable, 1 bolt, 1 wing nut, 1 neck strap, 1 non-woven bag, 1 user manual

Questions and answers

How deep can it read?: From 0.7 m to 100 m (about 2 ft to 328 ft). Accuracy drops in very shallow water below the minimum.
Does it need batteries?: Yes, four AAA batteries, which are not included. The screen has LED backlighting for low light.
Can I use it for ice fishing?: Yes. Cut a hole in the ice and place the sonar under the water, or lower it on the cable with the float.
How do I mount the transducer?: Fix it to the boat hull, use the float on the cable, mount it on a pole, or place it under the ice. The 7.5 m cable sets the reach.
Does it show what the bottom is?: Yes, it displays grass, rock or sand so you can judge the seabed. It also gives the approximate fish location and depth.
Is it good for saltwater?: It works in fresh and salt water within its depth range, but the 45-degree beam and basic screen suit shallow to mid-depth fishing best.
Where is the 100m Portable Sonar LCD Fish Finder cheapest?: At Walmart, for $61.20, as of our latest check.