When space is at a premium but data integrity cannot be compromised, the Tinytag Talk 2 voltage series provides the ultimate low-infrastructure telemetry solution. Housed in Gemini’s iconic, featherlight 35mm film-canister style enclosure, these single-channel DC voltage data loggers weigh a mere 30g. They are specifically engineered to sit discreetly inside crowded electrical control cabinets, vehicle wiring looms, or compact laboratory experimental setups where bulkier industrial hardware simply cannot fit. The series is split into two distinct voltage spans to match your precision demands:

• The Standard-Industrial Workhorse (TK-4702): Built for a wider 0V to 25V DC range, making it the premier compact selection for monitoring 12V and 24V battery systems, solar array discharge cycles, and standard factory control loops.
• The Low-Voltage Specialist (TK-4703): Optimised for a 0V to 2.5V DC range, providing an exceptional resolution of 50mµV to capture tiny millivolt fluctuations from high-precision laboratory instruments and process sensors.

Both instruments ship standard with the CAB-3233 3-wire input cable, which plugs directly into the logger’s dual-purpose base jack and breaks out into clean, bare wire ends for fast connection to sensor terminal strips. This cable features a smart Sense Line wire that outputs a brief +3.5V signal only while a reading is being actively sampled, allowing you to power low-draw external sensors exclusively when the logger is awake to preserve field battery life. Backed by a non-volatile 16,000-reading flash memory and running on the universal Tinytag Explorer software platform, the Talk 2 voltage series delivers simple, secure analogue integration at an accessible price point.