Additional Information
Features
The Humminbird HDR 650 Depth Gauge gives you instant reliable depth readings, even at speeds up to 70 mph, and can alert you to both deep and shallow water. Easily installs in any existing 2-1/8" opening. Wires to the ignition to automatically turn on. Read the HDR 650 depth gauge in feet, meters, or fathoms. The Humminbird HDR 650 includes 2 face plates (black and white) and 3 trim rings (black, white, and silver) for matching to your dashboard. Easy-to-read backlit 1-1/4" LCD display. Transom-mount transducer with 20' transducer cable. 200 kHz, 20° cone angle. 600' max. depth. 250 watts RMS power output. 2-1/2" dia. x 4-3/4"D.
Show moreShow less
- Deep and shallow alarms
- 600' max. depth
- Backlit LCD display
- 200kHz, 20° cone
- Transom-mount transducer
Specs
Dimensions | 2.50" dia. x 4.75" D |
---|---|
Display Type | LCD |
Max. Depth | 600.00 ft |
Operating Frequency | 200 kHz |
Power Output | 250.00 W |
Speed | 70 mph |
Unit Weight | 1.50 lb |
Brand | Humminbird |

WARNING: Cancer and Reproductive Harm
For more information, go to www.P65Warnings.ca.gov/product.
Reviews
Q & A
The Humminbird HDR 650 Depth Gauge gives you instant reliable depth readings, even at speeds up to 70 mph, and can alert you to both deep and shallow water. Easily installs in any existing 2-1/8" opening. Wires to the ignition to automatically turn on. Read the HDR 650 depth gauge in feet, meters, or fathoms. The Humminbird HDR 650 includes 2 face plates (black and white) and 3 trim rings (black, white, and silver) for matching to your dashboard. Easy-to-read backlit 1-1/4" LCD display. Transom-mount transducer with 20' transducer cable. 200 kHz, 20° cone angle. 600' max. depth. 250 watts RMS power output. 2-1/2" dia. x 4-3/4"D.
Show moreShow less
- Deep and shallow alarms
- 600' max. depth
- Backlit LCD display
- 200kHz, 20° cone
- Transom-mount transducer
Dimensions | 2.50" dia. x 4.75" D |
---|---|
Display Type | LCD |
Max. Depth | 600.00 ft |
Operating Frequency | 200 kHz |
Power Output | 250.00 W |
Speed | 70 mph |
Unit Weight | 1.50 lb |
Brand | Humminbird |

WARNING: Cancer and Reproductive Harm
For more information, go to www.P65Warnings.ca.gov/product.
Does this tell me the temperature of the water as well?
The HDR 650 is a Depth Gauge Only. It only provides sonar. Unfortunately, we do not make a Depth Gauge with temp.
Date published: 2020-12-18
will it fit on pondtoon tube
The HDR 650 will fit on a Pontoon boat if he has a indash for this mount into. Also, the transducer is generally mounted on one of the toons mounted to a welded bracket.
Date published: 2019-07-15
My backlight don’t work so u can’t see it do I need to replace transducer also or can I use the one I have
The liquid crystal display (LCD) offers sharp viewing. Even in bright, direct sunlight, and is continuously lit for nighttime operation. This doesn't require a transducer replacement. However, if your transducer has been damaged or simply not working it may need to be replaced.
Date published: 2018-01-25
In the product summary it states transom mounted transducer, how do you get the thru hull transducer.
We do offer an exchange program for new and unused transducers. See instructions at the following link. If more detail is required, please call us direct at 1 800 633 1468.
https://www.humminbird.com/faqDetail.aspx?id=1479
Date published: 2017-12-18