This is an instruction manual for a photoresistor produced by Open Source Electronics, model 61-681 FTR AGE RETDS
This document provides operating instructions for the IDEAL 61-681, a portable, compact digital light meter designed for simple one-hand operation. The device features a 3 1/2 digit backlit LCD display and offers measurements in both lux and footcandles (fc) units.
| Battery Life | 200 hours typical |
|---|---|
| Dimensions | 170mm(H) x 44mm(W) x 40mm(D) |
| Weight | 220g |
| Range | 20lux, 200lux, 2000lux, 20000lux |
| Resolution | 0.01lux, 0.01 fc |
The meter provides selected lux and fc units.
Press the Back-Light button for two seconds to turn the Back-Light on.
The operating environment is 0°C to 50°C (32°F to 122°F) at < 70% relative humidity.
The tester is warranted against defects in material and workmanship for two years from the date of purchase.