Side by side

Guide TE421 vs Guide TU425 SE 3.0

The TE421 runs a 400×300 core at 12 µm behind a 25 mm lens; the TU425 SE 3.0 runs 400×300 at 12 µm behind 25 mm. The TE421 is lighter by 9.9 oz. Approximate prices are ~$949 and ~$1,599.

How far you can see a person

Make out detailTell what it isSpot itMaker’s claim

Guide TE421400×300 · 12 µm · 25 mm

80 m make out detail130 m tell what it is521 m spot itmaker claims 1,300 m

Guide TU425 SE 3.0400×300 · 12 µm · 25 mm

80 m make out detail130 m tell what it is521 m spot itmaker claims 1,300 m

501002005001k2k5k m

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

Spec	GuideGuide TE421	GuideGuide TU425 SE 3.0
Published
Sensor	400×300	400×300
Pixel pitch	12 µm	12 µm
NETD	25 mK	20 mK
Refresh rate	50 Hz	50 Hz
Lens	25 mm	25 mm
Base magnification	1.9×	3.1×
Digital zoom	up to 7.6×	up to 12.4×
Field of view	11° horizontal	10.3° horizontal
Display	800x600 AMOLED	1920x1080 AMOLED
Claimed detection	1,300 m	1,300 m
Claim basis	unspecified	unspecified
Run time	5 h	12 h
Battery type	Internal Li-ion	Internal + removable
Weight	10.4 oz	20.3 oz
Length	6.1″	12.2″
Laser rangefinder	No	No
Ballistic calculator	No	No
Records video	Yes	Yes
Wi-Fi	Yes	Yes
IP rating	IP67	IP68
Warranty	5 years (10 years on sensor)	5 years (10 years on sensor)
Approx. price	~$949	~$1,599
Derived here
IFOV	0.480 mrad	0.480 mrad
Est. detection	521 m	521 m
Est. recognition	130 m	130 m
Est. identification	80 m	80 m
Claim ÷ estimate	2.5×	2.5×
Derived field of view	11°	11°
Pixels per degree	36.5	36.5
Where to buy	Guide →	Guide →

Tinted rows are where these two differ. Prices are approximate.