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By adding this item to cart, you agree and acknowledge the Export Policy and confirm that you are a person in the United States with no intentions to illegally export the device.

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  • AGM RATTLER TS19-256


PART #3143855003RA91

5 reviews | Write a review

Description And features

The Rattler TS19-256 is a perfect addition to any hunter's arsenal. Equipped with a 19mm germanium lens and a 256x192 resolution thermal sensor, this unit has a detection range of 1250 yards, and a base magnification of 2.5X. This base magnification, combined with a wide field of view, makes this scope a truly versatile optic. The Rattler series of thermal scopes were specifically designed to be compact and lightweight, as this not only ensures its small footprint can be used on a multitude of shooting platforms, but also gives the series secondary use as a thermal monocular as well. 

This unit also comes packed with all the features that many Rattler users have come to expect, which include: built-in recording and picture capture capabilities, Wi-Fi hotspot, 8X digital zoom, Picture-in-picture, AGM Connect app compatibility for storing and sharing images and videos, one-shot digital zeroing process, 4.5 hours of battery life on (2) CR123 batteries, external power capability through the unit’s USB-C plug and a high-quality American Defense Manufacturing quick detach mount which quickly allows users to seamlessly shift from riflescope to monocular quickly and easily.

Warning: California's Proposition 65

  • 256×192 thermal resolution, 12μm, high sensitivity detector (NETD <35mK)
  • Image processing technology: Adaptive AGC, DDE, 3D DNR
  • 1024×768 resolution 0.39-inch OLED display
  • 8x digital zoom
  • Video recording and snapshot, built-in EMMC (16 GB)
  • Supports distance measurement
  • Adjustable color palettes
  • Wi-Fi data transmission
  • Waterproof, shockproof
  • Up to 4.5 hours continuous working
  • External power supply capability
  • 3-Year warranty

Detector type: 12μm, Uncooled, 25 Hz

Refresh rate: 25 Hz

Resolution: 256 × 192

FOV: 9.3° × 6.9°

Package Includes
  • Mount
  • USB Cable
  • Lens Tissue
  • User Manual
  • Carrying Bag
  • CR 123 Batteries
Export Restrictions:

Product shown herein is subject to US export regulations and may require a license prior to export. Any diversion contrary to US Government regulations is prohibited.


Battery life (operating at 20°С)
Up to 4.5 hr
Black Hot, White Hot, Red Hot, Fusion
5 types, 3 colors, on/off
Drop Test Height
1.5m (4.9 feet)
Boresight Adjustment
Digital Controlled
Boresight Increment
0.22 mil / 0.77 MOA
Distance Measurement
Yes (Stadiametric Rangefinder)
Scene Mode
Jungle, Recognition
Picture In Picture Mode (PIP)
Video Recording
Defective Pixels Correction (DPC)
Uniformity Correction
Auto, Manual, External Correction
Digital Magnification
2.5x - 20x
Detector type
12μm, Uncooled, 25 Hz
Standby Mode
256 × 192
Detection Range (6' object)
Lens system
19 mm; F/1.0
Field of view (H × X)
9.3° × 6.9°
Digital zoom
1×, 2×, 4×, 8×
Eye relief
45 mm
0.39-inch, OLED, 1024×768, 50 Hz
Built-in EMMC (16 GB)
Battery Type
Two CR123 (3V) Lithium
CVBS Output
Yes (via USB)
External power supply
5 VDC/2 A, USB Type-C interface
Operating Temperature Range
-20°C to +55°C (-4°F to +131°F)
Degree of Protection
520 g ( 1.15 lb)
Overall Dimensions
187 × 63 × 80 mm (7.4 × 2.5 × 3.1 in)
Package Includes
Thermal Imaging Rifle Scope, Mount, USB Cable, Lens Cloth, Manual

Firmware update


Please read the instructions below before updating the firmware.

Check current firmware version of your device, for this go to your device’s main menu to option “Info” or “Version” and check what number you have. Compare the number with the latest version of the firmware on the AGM website.

Download the firmware update package to your PC and unzip it.

NOTE: Do not open the DAV or BIN file on your computer as it may corrupt the file.

  1. Connect the thermal device to your PC with USB cable.
  2. Turn on the thermal device.
  3. Disable the Wi-Fi Hotspot function in the device menu if WiFi is enabled.
  4. Open the detected disk (USB drive) in file manager program. Copy the unzipped .dav file and paste it to the root directory of the device.
  5. Turn off the device.
  6. Turn on the device. After a while, the firmware update process will start automatically. During the update, the screen will display the inscription "Upgrading ...". The update process will be completed when the inscription "Upgrading ..." goes out. Repeat steps 4-6 for each updating file.
  7. Turn off the device and disconnect it from your PC.

If your device does not have a built-in rechargeable battery and is powered by replaceable Lithium batteries, remove the batteries from the battery compartment before connecting the device to your PC, or it may cause computer damage.

If you removed the batteries, please make sure the device is connected to the computer during the update process. Otherwise, the device will shut off and may cause unnecessary upgrade failure, firmware damage, etc.

Please check the latest firmware. Click the FW Version to download the firmware update package.


    Firmware Versions:

    • V5.5.53_231025

      This firmware is not for Rattlers V2 versions

      # Support 10 reticles.

      # The small cross won’t overlay on the reticle when you choose the reticle type. It only appears when you adjust the XY value, to mark the reticle’s original position.

      # When a 5-second power-off countdown appears, pressing any buttons can cancel the power off operation. Accidental touches that trigger power off process won’t be a problem.

      # Support Auto FFC Prompt. Before the device performs auto FFC, a 5-second countdown will appear to notify users of the incoming frozen image. 

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