Two related models, a useful sensor comparison

TOPDON thermal monoculars

The TS004 and TS004 Pro share a similar published angular view, but use different native detectors and lenses. That makes them an informative pair for understanding what changes with a larger sensor without pretending a spec comparison is a field test.

As an Amazon Associate I earn from qualifying purchases. Our recommendations are based on documented specifications, not hands-on testing. How we compare products.

TOPDON

TOPDON TS004

Long sessions on an entry sensor budget

256 × 192 sensor13.5° view

Check price on Amazon See the tradeoffs

TOPDON

TOPDON TS004 Pro

An upgrade that retains broad scene coverage

384 × 288 sensor13.8° view

Check price on Amazon See the tradeoffs

Compare the tradeoffs directly

Choose two models to compare the documented specifications, or use the finder to narrow the options around your priorities.

Compare models Find a match

A sensor upgrade with similar scene coverage

TS004 and TS004 Pro are useful to compare because their horizontal views stay close: 13.5° and 13.8° respectively. The Pro moves from the TS004’s 256 × 192 detector to 384 × 288, distributing more native samples across a similar scene. The published battery rating changes from eleven hours to ten hours. Both models support recording, but neither is listed here as having a laser rangefinder. Compare the detector benefit against the price difference, and keep TOPDON’s separate detection and identification claims attached to their original labels.