Dali S1 Thermal Monocular

• Wide field thermal view: The 23.40 ° field of view and 1.00 x base magnification make the Dali S1 easy to scan with both speed and awareness, which is useful for short-range observation, searching along tree lines, and checking a wider area without constant panning.
• 50 Hz image refresh: A 50.00 Hz refresh rate helps moving subjects appear smoother in the display, so tracking people, animals, or vehicles feels more natural when observing on the move.
• Uncooled FPA sensor: The 240x180 thermal sensor with 17.00 μm pixel pitch gives the monocular practical heat detection without visible light, allowing use in darkness, haze, and other conditions where standard optics lose contrast.
• Compact handheld format: At 167.00 mm long and 500.00 g, the S1 is built for one-handed carry and quick deployment, making it easier to keep close at hand for patrol, property monitoring, and general outdoor use.
• Weather-ready construction: The waterproof and fogproof housing supports reliable use in damp, cold, or changeable conditions, helping the monocular stay usable when ordinary optics can mist up or become harder to trust.

About the S1 Series

The S1 series sits in Dali's compact handheld thermal range and is designed around simple operation, a wide viewing angle, and practical short- to medium-range observation. Rather than focusing on long-distance identification or advanced recording functions, this series emphasizes a straightforward thermal viewing experience for users who need to detect heat sources quickly in darkness or poor visibility. That makes it well suited to general outdoor observation, site monitoring, search tasks, and entry-level thermal use where portability matters as much as image access.

Within the range, the design philosophy is clearly centered on one-handed use and low operating complexity. A compact body, fixed optical magnification, and digital zoom support fast scanning without the bulk of larger thermal devices. The series also uses an uncooled FPA sensor and a self-contained display system, giving users a dedicated thermal monocular that works independently of ambient light. In practical terms, the S1 concept is about carrying a thermal imager easily, bringing it into action quickly, and maintaining awareness across a broad section of terrain rather than narrowing the view too early.

About the Dali S1 Thermal Monocular

The Dali S1 Thermal Monocular is built for users who need a light, compact thermal viewer for detection and observation at closer distances. Its 1.00 x optical magnification keeps the image natural for scanning, while the digital zoom extends the view up to 8.00 x when a target needs a closer look. That combination makes the S1 more versatile than a fixed-view thermal spotter intended only for broad-area searching. It can first help locate a heat source quickly, then provide additional image scale for follow-up observation.

The thermal core uses a 240x180 uncooled FPA sensor with 17.00 μm pixel pitch and 60.00 mK sensitivity. In field use, that means the monocular is designed to show heat contrast clearly enough for practical detection in darkness, light cover, and difficult weather, while the 50.00 Hz refresh rate keeps motion looking smoother during handheld observation. A stated 450.00 m detection range gives the S1 enough reach for routine perimeter checks, outdoor movement detection, and general thermal awareness.

The display side is intentionally simple, using an LCD display with 240x240 resolution. This keeps the device focused on direct observation rather than multimedia features, which suits users who prefer a dedicated thermal monocular without recording functions. Power comes from a CR123A battery with up to 6.00 h of battery life, and the waterproof, fogproof housing supports use in changing outdoor conditions. Together with its 167.00 mm length and 500.00 g weight, the S1 is a practical handheld thermal monocular for carrying, scanning, and checking heat signatures quickly.

About Dali

DALI traces its origins to the Zhejiang Provincial Testing Technology Research Institute, established in 1984. Based in Hangzhou, Zhejiang, China, the company developed from a research background into a manufacturer focused on infrared and optoelectronic systems. It was restructured in 2001 and later listed on the Shenzhen Stock Exchange in February 2008, reflecting its growth into a larger technology business.

In this field, DALI is known for work on infrared core components, thermal-imaging systems, and related optoelectronic products. Its expertise includes uncooled focal-plane-array detectors and infrared thermal-imaging cameras, which are directly relevant to handheld thermal devices such as the S1. The company's outdoor range covers thermal monoculars, riflescopes, and binoculars, while IRtech identifies itself as a professional thermal-imaging brand originating from DALI.

Main Features

• Magnification: 1.00 x
• Digital zoom range: 1.00 x - 8.00 x
• Objective lens diameter: 10.00 mm
• Field of view: 405.00 m/1000m
• Field of view (angular): 23.40 °
• Detection range: 450.00 m
• Thermal sensor type: Uncooled FPA
• Sensor resolution: 240x180
• Pixel pitch: 17.00 μm
• NETD: 60.00 mK
• Refresh rate: 50.00 Hz
• Calibration mode: Automatic, Manual
• Display type: LCD
• Display resolution: 240x240
• Image capture: No
• Video recording: No
• Video output: No
• Battery type: CR123A
• Battery life: 6.00 h
• Length: 167.00 mm
• Width: 45.00 mm
• Weight: 500.00 g
• Operating temperature range: -10°C / +50°C
• Waterproof: Yes
• Fogproof: Yes
• Built-in rangefinder: No
• Image stabilizer: No
• Color: Black
• Made in: China

Warranty

The Dali S1 Thermal Monocular comes with a 2-year warranty.