TES-1335 Digital Light Meter

Description

The TES-1335 Digital Light Meter is a precision instrument designed to measure illuminance, or light intensity, in the field. It is suitable for applications in fields like photography, architecture, and environmental testing. The device is known for its high accuracy, rapid response time, and user-friendly design.

Key Features

Display: 3-3/4 digit LCD with bargraph indication.

Measurement range: 0 to 400,000 Lux and 0 to 40,000 fc (foot-candles), with multiple steps and automatic ranging.

.Resolution: 0.01 Lux, 0.01 fc.

Spectral sensitivity: Closely matches the CIE photopic curve, which corresponds to the human eye's response to light.

Sensor: A stable, long-life silicon photodiode and spectral response filter.

Measurement rate: \(1.3\) times per second for the digital display and times per second for the analog bargraph.

Power source: 6 AAA batteries.

Battery life: Up to 400 hours with carbon-zinc batteries, according to TES. Some variants may offer 200 hours.

Auto power off: The meter automatically shuts down after 30 minutes of inactivity to save battery.

Photosensor lead length: Approximately 150 cm.

Photosensor dimensions: 920(L) × 60(W) × 29(H) mm, according to TES. Note that a different datasheet on Scribd lists 100(L) x 60(W) x 27(H) mm.

Meter dimensions: 150(L) × 72(W) × 35(H) mm, according to TES. Note that a different datasheet on Scribd lists 135(L) x 72(W) x 33(H) mm.

Weight: 320g, according to TES. Some variants may weigh 250g.

Included accessories: Carrying case, instruction manual, and batteries.