Pentax, Measuring Instruments, models:

36141 - Digital Spot Meter	Operating Instructions Manual
425-VDN	Quick Start Manual
ETH-302	Instruction Manual
FX-1DC	Instruction Manual
Honeywell 1/21 Degree Spotmeter	Operating Manual
PTS-10	Instruction Manual
PTS-II05	Instruction Manual
PTS-V2	Instruction Manual
R-200 Series	Instruction Manual
R-2500DN Series	Instruction Manual
R-2500NS Series	Instruction Manual
R-315	Instruction Manual
R-315EX	Instruction Manual
R-422VN	Instruction Manual
TH-E10	Instruction Manual
Visio R-400VDN Series	Quick Reference Manual
W-1502N Series	Instruction Manual
W-821NX	Basic Instruction Manual