when it says variable output between 5w, 2.5w, 1w, does it mean that there are 3 different radios or is just one that you can regulate the power?

Single radio multiple output settings

I can verify they do not float!

Can this be tuned to channel 123.025?

The HX400IS is Marine VHF radio. I believe the 123.025 frequency is a UHF frequency and needs a UHF RADIO to tune it.

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Standard Horizon HX400IS Intrinsically Safe Handheld VHF Radio | Intrinsically Safe

Standard Horizon HX400IS Intrinsically Safe Handheld VHF Radio | Intrinsically Safe

Product ID: 857231

Details

Brand
STANDARD
Color
Black
Frequency Range
134 MHz to 174
Included Components
2300 mAh or &
Item Weight
1 Pounds
Number of Batteries
4 Lithium Ion

🌊IPX8 Submersible 1.5m/30min

📡40 Programmable LMR Channels

🔋17-Hour Lithium-Ion Battery Life

$720.79

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📡 Stay Connected, Stay Safe — Wherever Your Mission Takes You

POWER THAT LASTS ALL DAY - Robust 2300 mAh Lithium-Ion battery delivers up to 17 hours of uninterrupted communication.
DIVE DEEP STAY CONNECTED - IPX8 waterproof rating means your radio survives 1.5m underwater for 30 minutes—built for the bold.
CRYSTAL CLEAR CONVERSATIONS - Noise-canceling microphone ensures your voice cuts through any environment, from busy docks to stormy seas.
TAILORED CHANNELS AT YOUR FINGERTIPS - Access 40 programmable Land Mobile Radio channels plus NOAA weather alerts for real-time updates.
INTRINSICALLY SAFE FOR HAZARDOUS ZONES - Certified intrinsically safe design lets you communicate confidently in explosive or volatile environments.

The Standard Horizon HX400IS is a commercial-grade, intrinsically safe handheld VHF radio featuring IPX8 waterproofing, a powerful 2300 mAh lithium-ion battery with 17-hour life, and 40 programmable LMR channels. Designed for marine and industrial professionals, it includes NOAA weather alerts, a noise-canceling microphone, and quick charging options, ensuring reliable communication in the toughest environments.

Specifications

ASIN	B00EINGJL4
Additional Features	Submersible, Weather Alert
Battery Average Life	17 Hours
Best Sellers Rank	#497 in Portable FRS Two-Way Radios
Brand	STANDARD HORIZON
Built-In Media	2300 mAh or 2400 mAh Lithium-Ion battery, 110 VAC & 12 VDC quick chargers
Color	Black
Compatible Devices	Marine communication devices from the USA, International, and Canadian regions; audio output/input devices such as speaker microphones and headsets
Customer Reviews	4.6 4.6 out of 5 stars (25)
Frequency Range	134 MHz to 174 MHz
Global Trade Identification Number	00788026128648
Item Type Name	Fishing Hook
Item Weight	1 Pounds
Manufacturer	Standard Horizon
Mfr Part Number	HX400IS
Model Number	HX400IS
Number of Batteries	4 Lithium Ion batteries required.
Number of Channels	40
Talking Range Maximum	36 Mile
Tuner Type	VHF
UPC	788026128648 033111139352 788026172047 335242803752 788026128631
Unit Count	1.0 Count
Warranty Description	Please contact us if you experience any issues within 30 days of receipt.
Water Resistance Level	Waterproof
Waterproof Rating	IPX8

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$720.79

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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