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  • Humminbird SmartCast RF25 1.25-Inch Rod Mount Waterproof Fishfinder
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Humminbird SmartCast RF25 1.25-Inch Rod Mount Waterproof Fishfinder

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Rod Mount
  • Rod mounting fishfinder features 1.25-inch high-visibility display with 48 x 32 pixels of resolution
  • Remote sonar sensor with 150-foot remote operating range and 120-foot depth capability
  • One-Touch menu navigation easily controls FishID+, depth range, fish alarm, and sensitivity
  • Waterproof design with Wet Switch technology that saves battery life
  • Includes dual-channel, waterproof advanced RSS unit with 500 hours of in-water usage time
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Product Information

Edition: Rod Mount
Technical Details
Item Weight11.2 ounces
Product Dimensions10.4 x 7.3 x 2.4 inches
Item model number4062501
Discontinued by manufacturerYes
Display Size1.25 inches
WarrantyComes with Manufacturer Warranty.
Additional Information
Best Sellers Rank #81,627 in Electronics (See top 100)
Shipping Weight12.8 ounces
ShippingCurrently, item can be shipped only within the U.S.
Date First AvailableOctober 2, 2001
Warranty & Support

Product Warranty: For warranty information about this product, please click here

Product Description

Edition: Rod Mount

Product Description

Our rod mount sonar display does something no other fishfinder can¿it puts you sonar and time/date information where you need it, at eye level on your rod, on a display that's backlit for night fishing. Plus, it includes the RF45 Advanced Remote Sonar Sensor for increased depth capability and wireless range, up to 500 hours of in-the-water use, and more. The One-Touch menu gives you easy access to Fish ID+, depth range, fish alarm, sensitivity and other advanced features, so you have the information you need at a glance. Accommodates rod sizes from .35" to 50".


The Humminbird Smartcast RF25 is a fishfinder designed for the recreational angler ready for a step up from traditional fishing and offers an unmatched level of convenience. This fishfinder may be small, but it has plenty of built-in capabilities, and can provide you with the ultimate in portable sonar in a simple, rugged package that mounts directly on your fishing pole.

Humminbird Smartcast RF25
Designed for the recreational angler ready for a step up from traditional fishing.
Humminbird Smartcast RF25 Display
Vital information is displayed on a high-visibility, 1.25-inch display with 48x32 lines of resolution.
Humminbird Smartcast RF25 RSS
Replaceable remote sonar system gives you 500 hours of in-water use.

Advanced Rod Mount Sonar

Single Beam Sonar

The Smartcast RF25 utilizes a traditional, single-beam 90-degree sonar to deliver ultra-wide coverage equal to twice the water depth up to 120 feet deep.

The RF25

Vital information is displayed on a high-visibility, 1.25-inch display with 48x32 lines of resolution, in a true STN grayscale that delivers clearly better images of the bottom, fish and structure. The large, easy-to-see digital readout is powered by an included Lithium 2450CR watch battery, and features a pulse backlit display for viewing during fading light conditions, as well as a time and date function. This system is designed to be waterproof, and has a 150-foot operating range allowing you to easily travel around without losing your signal.

Remote Sonar Device

The Smartcast RF25 comes with a waterproof, dual-channel RSS (remote sonar system), which given the readout's A/B option allows for the use of two RSS sensors in the same area. The RSS includes water surface temperature, typically lasts for 500 hours of in-the-water usage, and allows you to purchase replacements that are available on the manufacturer's web site, as well as at your local tackle dealer and major outdoor retailers.

Easy to Use

The Smartcast RF25 features one-touch menu navigation that allows you to easily control FishID+, depth range, fish alarm, and sensitivity, as well as Wet Switch technology that maximizes battery life by automatically shutting down when the Advanced RSS is out of the water. For those who like to travel light and go fishing anywhere and everywhere, this system is the perfect companion.

What's in the Box

Advanced Remote Sonar Sensor, Rod Mounted Display, 2450CR Battery, Three Mounting Sleeves, Operation Manual

Customer Questions & Answers

Customer Reviews

Have fun, enjoy the day, and good fishing.
Amazon Customer
Got it a week ago open it today to use it, it came with two batteries and it does not work.
Samuel Darling
It was accurate on the depth and water temperature.
Amazon Customer

Most Helpful Customer Reviews

66 of 71 people found the following review helpful By Jesse Skeens on January 7, 2005
Edition: Portable Base Station
Got this as a gift for Christmas when I was shopping with the wife at BassPro here in Orlando. I had been researching these units for a few days after reading about one online. The fact that I could cast out from the shore appealed to me so I chose one of the smartcast models. BassPro had the RF10 on sale and the R15 was the price I had expected the R10 to be so I went with the R15. It includes grey scale and water temp as part of the upgrades from the R10 series.

Over the past two weeks I've taken the R15 out to 4-5 lakes around my area to test it out. Provided I do a nice steady retrive a smooth display of the bottom is presented. I have also seen a fair amount of fish on the display using the Fish ID function. From what I have read on various newgroup posts this feature should generaly be turned OFF. Instead one is supposed to learn how to identify fish using "raw" sonar returns. So far I have not seen any "fish arches". I have a feeling I might need to be in deeper water for this to occur.

Overall the detail is nice and there are four options for displaying the 4 gradations of grey in ordet to highlight either weak or strong returns. One of the limilations of using this near the shore is that is does not do well with shallow depths. It lists 2 feet as the minumum but even depths of 3 feet and a bit more seem to confuse it, giving false returns. I have not tested its actual ability to recognize a return as a fish yet. I say this becuase so far I have not taken my tackle out, just the fishfinder in order to concentrate on learning it. I think I will try adding some bait to a line and attaching this to the small hole provided on the bottom of the RSS to see if it will show any fishing coming up to check it out.
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42 of 49 people found the following review helpful By BassFisherMan on March 13, 2011
Edition: Rod Mount Verified Purchase
I'll tell you i did alot of research on this product before i finally decided to buy it, You know how you can always get caught up in the hype of good reviews and bad reviews. which in a lot of cases can sway your decision on buying a certain product. Well I bought it, ive taken it out on 3 fishing trips so far. all freshwater lakes. i dont have a boat so im always hoofing it along the shoreline carrying my 3 poles and backpack full of tackle. if this sounds like you, then i highly recommend you get yourself one of these. We all know when your at a lake and you cant just cruise around in the middle it can be hard to find that perfect spot where the fish are. this thing has helped me in that. no longer do i have to move around all over and still have nothin to show for it. this allows you to at least find those underwater ditches or deep cover that you can never normally see. you can fish everywhere on a lake all day and by the time you get to your new spot the fish have already moved.I got my package and there was nothing wrong with the RSS or the fishfinder unit. it mounts great to the fishing rod and ive had no problems with the unit dieng or rusting or screen cracks. nothing. i wanted to submit this review because i know what a negative affect negative reviews can cause. so please. if your interested in buying this. i suggest you do so. a must for the shore tracker. good fishing!
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33 of 38 people found the following review helpful By Paul L on June 26, 2008
Edition: Rod Mount
I've now had this little guy for a year and with the exception of the green transducer dying in the first week (replaced immediately by Humminbird), it works like a charm. It's been in both frest and salt water repeatedly without a hiccup. I've had it in as much as 60 feet with fairly good resolution, discerning between weeds, rocks and fish
well for the price. Great little unit for the money, for sure-especially if you have a kayak like me. You won't be disappointed.
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8 of 8 people found the following review helpful By Optimist on May 12, 2012
Edition: Wrist Mount Verified Purchase
Have had this for about a week and took it out a couple of times.
As other reviewers have commented, it works quite well. After messing with it, I can't imagine fishing without one. Knowing where the fish are and are not is invaluable. Of course it can't tell if they're biting !

A few observations to add to the already good reviews of this product:

1) The RF45 "rubber ducky" unit that you cast into the water is smaller than I expected, but that's good. It is light and casts well.
2) The display you wear on your wrist is a somewhat large, and thick, watch. This is fine. The resolution was good enough to see what needs to be seen, and lack of greyscale does not seem to compromise the utility.
3) The user manual is very well written, but as you might expect for something with few buttons, it takes some study to understand what you've bought. The operation of the watch-unit took a while to learn initially, but is straighforward after you use it a couple times. (It has defaults, so you can probably just use it if you don't want to study the manual...)
4) The RF45 rubber-ducky seems faily durable. I actually dropped mine on the concrete and it bounced and survived. But I don't recommend repeating this experiment.
5) The display unit I got had a bit of a manufacturing quality-control issue. All the pixels were quite dark, requiring me to find the part of the manual that explains how to adjust the LCD contrast. After setting it on the lowest setting (1, rather than the default of 5) it seems to work fine - but I wish I could adjust it even lower.
6) While not needed, "programming" the RF45 rubber-ducky (if you want to switch channels, turn on the light, etc) is a bit cumbersome, and can't be done without the manual.
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