Here’s a prism solution that’s ideal for night time or any low-light job condition

- This prism features a strobing LED light

- The red LED strobes every two seconds

- All electronics and the battery are securely built in to the canister

- The battery — a Sanyo CR-1/3N — is the same used in many cameras and will function for approximately 48 hours before needing replacement

- Features 0.5-second flash and <5 accuracy

- The sealed prism canister features an M20 thread, which is standard for screw-in style canisters and fits all holders designed for screw-in style prisms

- Weighs 0.26kg