Sig Sauer ECHO MV50-DV — 640×512 thermal handheld monocular

How far you can see a person

80 m make out detail130 m tell what it is521 m spot it

501002005001k2k5k m

Calculated from the sensor's pixel pitch and the lens focal length, for clear air.

Sig SauerHandheld monocular · 640-class

Sig Sauer ECHO MV50-DV

Approx. price: ~$4,000
Sensor: 640×512 · 12 µm
Lens: 25 mm · 1.5×
Weight: 21.2 oz

Price and availability on Sig Sauer’s site may differ.

Best for

Scanning from a stand, a truck or a field edge

01Specifications

As published by Sig Sauer. Sources: sigsauer.com ECHO MV operator's manual PDF (spec table SKU SOEC42320: 1.5-24x, FOV 17.1-8.7 deg, 640x512 12 um 50 Hz, OLED 1024x768, 10 h internal + 18500, IP67, 8.1 in, 205.7 mm, 21.2 oz, 600 g without battery), scheels.com (regular $3,999.99, sale $3,599.99, in stock; <20 mK; lensMm is the wide 25 mm setting).

Sensor: 640×512
Pixel pitch: 12 µm
NETD: <20 mK
Refresh rate: 50 Hz
Lens: 25 mm
Base magnification: 1.5×
Digital zoom: up to 24×
Field of view: 17.1° horizontal
Display: 1024x768 OLED
Run time: 10 h
Battery type: Internal + removable
Weight: 21.2 oz
Length: 8.1″
Laser rangefinder: No
Ballistic calculator: No
Records video: Yes
Wi-Fi: Yes
IP rating: IP67
Warranty: Infinite Guarantee
Approx. price: ~$4,000

02Pros and cons

From the published specs, not owner reports.

For it

640×512 sensor, 3× the detail of an entry-level 384
Sensitive sensor that picks out small heat differences on humid or rainy nights (104th-best of 285 that publish it)
Swappable battery pack, so a spare doubles the run time
10 h of battery, 33rd-longest of 344 here
Waterproof (IP67), survives a dunking
Records video and connects to a phone app
Wide 17° view for scanning a field

Against it