# TOPDON TS004 Pro Thermal Imaging Monocular, 50Hz, Wireless, 19mm Lens

Scan wildlife after dusk and view observations on your phone with the TOPDON TS004 Pro thermal monocular and its 19mm lens.

- [Original product page](https://www.ofertitastop.com/us/product/topdon-ts004-thermal-imaging-monocular-50hz)
- [View offer](https://www.ofertitastop.com/us/visit/topdon-ts004-thermal-imaging-monocular-50hz)
- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-10-24T22:53:20.818Z
- Brand: TOPDON
- Model: TS004 Pro
- MPN: TS004 Pro
- SKU: ofertitastop-us-126141
- Category: Cameras & Optics > Optics > Monoculars
- Source store: amazon US
- Active deal: Yes
- Price: 759.99 USD
- Previous price: 899.00 USD
- Discount: 15%
- Rating: 4.2 / 5
- Reviews: 52

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

For scanning a wooded area after dusk, the TOPDON TS004 Pro gives you a handheld thermal view rather than relying on visible light. Its 19mm lens is listed with detection up to 650 yards and detail visibility within 146 yards. A 50Hz refresh rate and wireless phone connection add options for viewing and recording. Buyers’ comments on image sharpness are mixed, so expectations around detail should be measured.

## Usage tips
Use the monocular to look for heat signatures while hiking, camping, hunting, or observing wildlife. The listed range distinguishes detection from detail visibility: the product details state detection capabilities up to 650 yards and clear detail visibility within 146 yards. Those figures describe different kinds of observation, so the longer distance should not be read as a promise of fine detail at that range.

The device can connect wirelessly to a phone through the TopInfrared app for live monitoring, with image capture and video recording with audio listed as supported features. The description says these functions can be used offline. That can be useful when you want to keep a phone view or save observations, while the monocular itself remains the central viewing device. Its silicone casing and IP67 rating are specified for outdoor use, the product information also states resistance to drops from up to 2 meters.

## Tech specs
- Model: TS004 Pro
- Type: Thermal imaging monocular
- Objective lens diameter: 19mm
- Refresh rate: 50Hz
- Battery life: Up to 11 hours
- Connectivity: Wireless connection to a phone through the TopInfrared app
- Focus: Manual
- Protection: IP67
- Manufacturer part number: TS004 Pro

## Why it’s worth it
The TS004 Pro brings thermal viewing, phone connectivity, and a stated battery life of up to 11 hours into one handheld device. That combination suits longer outdoor outings where you may want to scan an area and then save or share what the camera captures. The listed detection and detail distances also give buyers a more useful basis for judging its role than a general claim about night vision alone.

Compared with a basic flashlight or visible-light viewing approach, thermal imaging is intended to help locate warm objects in darkness, fog, or dense vegetation, as stated in the product details. It is not the same as a conventional optical monocular, which is a different approach to viewing. You’ll appreciate it if you want a thermal device with app-based monitoring as well as direct handheld use. Buyers generally describe it as easy to use and value it positively, but feedback on image quality is not uniform: some find the view clear, while others report that sharpness falls short of their expectations. Treat those comments as subjective impressions, not a guarantee of what you will see.

## Should you buy it?
Choose the TS004 Pro if thermal scanning, a 19mm lens, and wireless phone viewing fit the way you plan to observe outdoors. Its stated 11-hour battery life and IP67 protection are relevant for extended outings, while manual focus is a practical detail to account for during use. It may not suit you if your priority is consistently crisp image detail, since buyer feedback on sharpness is mixed. If fine visual detail matters more than detecting heat signatures, compare the thermal approach with an optical viewing device before deciding.

## Images

![TOPDON TS004 Pro Thermal Imaging Monocular, 50Hz, Wireless, 19mm Lens — 1](https://www.ofertitastop.com/i/ciJmKRT_vZr3pbWlEWGBHh3vYZlMx80yAxw83GMldvEwAH4r_4mQkmnz7shyxt_kR9OhYigJeJkHQ7D5By3dlzkuo37HVP6fn2HBCNIQj1Hq2gQ2iZAXBF9A.jpg)

![TOPDON TS004 Pro Thermal Imaging Monocular, 50Hz, Wireless, 19mm Lens — 2](https://www.ofertitastop.com/i/2upg2x1IZ641xZZMwtWb4Mr8jlo2Fsf3nNfk30teaTgG3NrzhzRBx9kcU5gQJL8HKLTMVCVcPBNHQ95pCVQK-ZXBc-FpHdyU1fW0B1ka4eXW_hnHIkXLHvLQ.jpg)

![TOPDON TS004 Pro Thermal Imaging Monocular, 50Hz, Wireless, 19mm Lens — 3](https://www.ofertitastop.com/i/pHLtn5VKJtrYbxLA1ynWM-GMcvoJI0J7VIzIUtbkWGqDzOnErqjEKGhESwPrOy1rALArusyVHU7N9yqZDmkvhwESHH6veXc_-VcfTGzmzKutTxk2EsI-erpa.jpg)

![TOPDON TS004 Pro Thermal Imaging Monocular, 50Hz, Wireless, 19mm Lens — 4](https://www.ofertitastop.com/i/pvDjTFdIy0MEHP6bhTScIHP_jUS72YBXK8qpcFthk5cjZIJqwsZxrRT4awtnMYTLo-r2KtcL-f3IlYLkhtcPUkUYm1Yjol8Yoyjwc8KDHJ4z7gV-6sBYBAdb.jpg)

![TOPDON TS004 Pro Thermal Imaging Monocular, 50Hz, Wireless, 19mm Lens — 5](https://www.ofertitastop.com/i/vC8GVXpiEhbm1QWhkvusRBNsNO_99qmFblzziBLVAAHRndbf2Wx8Pnoc9hK0xAwpPe3mshc9lsdgZNBxGYTuJ54TzlNRO3C4hZqkHvpBvMg1Q9cnNB3Rl21c.jpg)