Description:
- Object ID: ALSA 2009.06.04
- Made by: Sokkisha
- Model: Red 2
- Serial Number: D70125 (See commentary)
- Date Made: Circa 1980 to 1983.
- Approximate size: 21 cm lenght including front lens and rear eye piece , 15.0 cm width, 12.0 cm height to top of push button pad
- Accessories: Orange carrying case, 120-volt battery charger, 12-volt battery charger that plug into a vehicle cigarette lighter, two RED2 plastic rechargeable batteries (model # BDC11).
- Condition: Fair
Commentary:
The Red2 uses an Infra-red light beam to measure distances and has an accuracy of +/- (5mm+5ppm*D). With a single prism it can measure up to 2,000m, with a triple prism up to 3,000m and with nine prisms up to 5,000m under good conditions. It is lighter and more versitile than the Red 1.
This EDM was used bt Can-Am Surveys Ltd. for survey work in Alberta
Two other numbers appear on the EDM. On top of the EDM: “SOKKISHA SF2 NO 211261 MADE IN JAPAN” and on the control face on back of EDM is shown “SOKKISHA 21620 RED2”
There is no manual with this EDM, however a manual is included with another Red 2 in the collection ALSA 2022.02.05.
Source of Object: Donated by Les Frederick.
Notes: The Society has one other Red 2 in their collection, ALSA 2022.02.05 donated by Jim Pinchas.
References: Visit article The Competition Heats Up – More EDMs for additional information. Sokkisha Brochure “Electronic Distance Meter RED2 in AGHS hard file.
Description by: Ed Titanich, October 23, 2024, and Gordon Olsson November 29, 2025.