Thomas 3247 Traceable Light Meter Pen, 1 Resolution, +/-5 Percent Accuracy

Meter reads from 0 to 1,860 foot-candles with a resolution of 0.1, and from 0 to 20,000 Lux with a resolution of 1. Accuracy is +/-5 percent of reading plus 5. Simple operation eliminates the need to refer to directions. Designed for intuitive, easy operation by everyone. Tough ABS plastic housing with O-ring seal and membrane keypad keep out dust and dirt, assuring a long life in severe lab or harsh plant environments. HOLD button freezes the reading on the display. High contrast 3/8" high LCD digits are easy to read. Traceable to NIST: To assure accuracy an individually serial-numbered Traceable Certificate is provided from our ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology). Rugged ABS plastic case is 1-1/2 diameter by 8" height; weight is 5 ounces. Supplied with a Traceable Certificate and four AAA batteries.