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AGM Rattler-C V2 35-384 Thermal Clip-On vs Sig Sauer ECHO CV25 Thermal Scope

The Sig Sauer ECHO CV25 is the stronger clip-on for most buyers. It has a 640x512 sensor against the Rattler-C V2 35-384's 384x288, so it resolves more detail at distance, and its 1024x768 AMOLED display is sharper than the AGM's OLED. The AGM wins on battery flexibility with two included rechargeable Li-ion packs and up to 11 hours, plus a wider 35mm objective. Owners of both report solid build, but the CV25's higher sensor resolution is the real step up for identifying game rather than just spotting it.

  • Choose the AGM Rattler-C V2 35-384 if you want longer run time, a spare battery in the box and a larger objective lens for a lower entry into thermal clip-ons.
  • Choose the Sig Sauer ECHO CV25 if image detail and a sharper display matter more to you than battery count, and you want 640-resolution thermal in a compact clip-on.

Prices

  • AGM Rattler-C V2 35-384 Thermal Clip-On: $895.00 at Amazon (last seen Nov 10)
  • Sig Sauer ECHO CV25 Thermal Scope: $3,399.00 at eBay (last seen Nov 8)
  • Difference: the AGM Rattler-C V2 35-384 Thermal Clip-On is $2,504.00 cheaper than the Sig Sauer ECHO CV25 Thermal Scope at the latest prices (Nov 8 and Nov 10)
AGM
AGM Rattler-C V2 35-384 Thermal Imaging Clip-On

AGM Rattler-C V2 35-384 Thermal Clip-On

AGM Rattler-C V2 35-384 Thermal Imaging Clip-On

5(2 ratings)
$895.00at AmazonChecked 20 h ago
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As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Two rechargeable batteries included, up to 11 hours total
  • USB-C external power support extends runtime further
  • 35mm objective gives strong detection range
  • Records video and audio to 16 GB internal storage
  • Wi-Fi streaming to a phone app
Cons
  • Lower 384x288 sensor resolution
  • Bulkier and heavier than the CV25
  • Narrower field of view
Sig Sauer
Sig Sauer ECHO CV25

Sig Sauer ECHO CV25 Thermal Scope

Sig Sauer ECHO CV25

$3,399.00at eBayChecked Nov 8
See all prices and details
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Store links may earn us a commission.

Pros
  • 640x512 sensor shows more detail at distance
  • Sharp 1024x768 AMOLED display
  • Compact and light at 18.8 ounces
  • Wider 17.6-degree field of view
  • 1x to 8x magnification range
Cons
  • Single 18650 battery, about 9 hours
  • Smaller 25mm objective limits light gathering
  • No spare battery in the box

What separates them

AGM Rattler-C V2 35-384 Thermal Clip-OnSig Sauer ECHO CV25 Thermal Scope
Thermal sensor resolution384x288640x512 VGA
Pixel pitch and sensitivity12 micron, NETD under 20mK12 micron, 20mK or better
DisplayHigh-resolution OLED1024x768 AMOLED
Objective lens35mm25mm
Field of viewNarrower, longer reach with the 35mm lens17.6 degrees, wider scene
Battery and runtimeReplaceable rechargeable Li-ion, up to 11 hours, two batteries included, USB-C power bank supportSingle 18650, about 9 hours
Weight and lengthHeavier, larger body18.8 ounces, 4.96 inches
Recording and connectivityOnboard video and audio, 16 GB storage, Wi-Fi appOnboard recording, app connectivity

Price history

$4,427.21$894.70
Nov 9Nov 10
  • AGM Rattler-C V2 35-384 Thermal Clip-On: lowest $894.70 on Nov 9 at Amazon; $895.00 on Nov 10.
  • Sig Sauer ECHO CV25 Thermal Scope: lowest $4,427.21 on Nov 9 at Amazon; $4,427.21 on Nov 10.

Prices at every store

AGM Rattler-C V2 35-384 Thermal Clip-On

  • Optics ForceNew

    In stockReturn policy

    $1,995.00Checked Nov 8
    Visit Optics Force
  • Arkhoma AdventuresNew

    In stockReturn policy

    $1,995.00Checked Nov 8
    Visit Arkhoma Adventures
  • Thermal BrosNew

    In stockReturn policy

    $1,995.00Checked Nov 8
    Visit Thermal Bros
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $895.00Free shippingChecked 20 h ago
    Visit Amazon
All 7 stores and price history →

Sig Sauer ECHO CV25 Thermal Scope

  • eBayNew

    Availability unknownSold by homeaudio52 (100% positive, 50 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $3,399.00Free shippingChecked Nov 8
    Visit eBay
  • eBayPre-owned

    Availability unknownSold by hs_tech (99.8% positive, 18,900 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $4,099.94Free shippingChecked Nov 8
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $4,427.21Free shippingChecked 19 h ago
    Visit Amazon
  • Tractor Supply CoNew

    Availability unknown

    $4,499.99Free shippingChecked 19 h ago
    Visit Tractor Supply Co

Store links may earn us a commission. Some prices via Klarna.

All 3 stores and price history →

Specs compared

SpecAGM Rattler-C V2 35-384 Thermal Clip-OnSig Sauer ECHO CV25 Thermal Scope
Color—Black
Battery Type—18650
Thermal Sensor Resolution—640x512 VGA
Pixel Pitch—12um
Refresh Rate—50Hz
Thermal Sensitivity—≤20mK
Magnification Range—1x - 8x
Objective Diameter—25mm
Field of View—17.6°
Display Resolution—1024x768 AMOLED
Battery Runtime—9-hour runtime
Length—4.96"
Show all 13 specsShow fewer specs
SpecAGM Rattler-C V2 35-384 Thermal Clip-OnSig Sauer ECHO CV25 Thermal Scope
Weight—18.8 ounces

What reviewers say

Sig Sauer ECHO CV25 Thermal Scope

Owners of Sig Sauer thermal clip-ons generally praise the image quality and the compact build, and the CV25's VGA sensor is a step up from older 384-resolution units. Complaints tend to center on the 1x base magnification and the need to pair it with a suitable day scope.

What people mention
  • Image qualityPraisedOwners say the VGA sensor and AMOLED display give a detailed thermal picture.
  • Size and weightPraisedUsers like that it is short and light enough to carry and mount easily.
  • Battery lifePraisedThe 18650 battery is reported to last through long nights.
  • MagnificationCriticisedThe 1x base magnification is seen as limiting for longer shots.

Questions and answers

Which is better for spotting game at long range?
The ECHO CV25's 640x512 sensor resolves more detail, which helps identify animals at distance. The Rattler-C V2's 35mm lens gives reach, but its 384x288 sensor shows less fine detail.
Which has better battery life?
The AGM Rattler-C V2 runs up to 11 hours and ships with two rechargeable Li-ion batteries, plus USB-C power bank support. The ECHO CV25 runs about 9 hours on one 18650.
Is the ECHO CV25 worth stepping up to over the Rattler-C V2?
Yes, if image detail and display quality are your priority. The 640x512 sensor and AMOLED screen are a clear upgrade. If runtime and a spare battery matter more, the AGM is the better fit.
Which is lighter and easier to mount?
The ECHO CV25 is lighter at 18.8 ounces and shorter at 4.96 inches. The Rattler-C V2 is bulkier, though both mount in front of a day scope without special tools.
Do both record video?
Yes. Both record video and capture images, and both offer app connectivity. The AGM adds audio recording and 16 GB of built-in storage.
Which has a wider field of view?
The ECHO CV25, at 17.6 degrees. The Rattler-C V2's 35mm lens trades field of view for longer detection range.

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More comparisons

  • AGM Rattler-C V2 19-256 Thermal Clip-On Scope 19mm vs AGM Rattler-C V2 35-384 Thermal Imaging Clip-On
  • AGM Rattler-C V2 19-256 Thermal Clip-On Scope 19mm vs Sig Sauer ECHO CV25

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