Scaler Timer
Product Code : JLI-PLE-10548
Quick Answer: The Scaler Timer is a general-purpose scaler and millisecond timer for radioactivity counting with a GM tube, with a bright green 6-digit LED display and a capacity of 999,999 counts or seconds. It supplies 300 V to 500 V to the GM tube.
Last updated: 18 October 2026
Key Features
- Works as a scaler for radioactivity counting with a GM tube, or as a millisecond digital timer.
- Manual or electronic triggering, with auto ranging on the timing modes.
- Manual counting, or timed counts over 1, 10 or 100 seconds.
- Built-in loudspeaker, switched from the back of the unit, gives an audible indication of counts when required.
- Press-to-read switch shows the accurate voltage applied to the GM tube.
Technical Specifications
| Specification | Value |
|---|---|
| Operation | Timer / scaler |
| Capacity | 999,999 counts or seconds |
| Display | 6-digit, bright green LED |
| Timed counting | 1, 10 or 100 seconds |
| GM tube voltage | 300 V – 500 V |
| Timing inputs | Manually switched start/stop; light gate(s) operated start/stop |
| Input power | 230 V ±5%, 50 Hz |
| Fuse | 315 mA (L) slow-blow |
| Dimensions (W x H x D) | 208 x 155 x 115 mm |
| Height including handle | 187 mm |
How It Is Used
Connected to a GM tube, the unit counts radioactive events by hand or over a set period of 1, 10 or 100 seconds, so count rates from different sources can be compared, with the loudspeaker giving an audible click for each count. In timer mode it measures intervals to the millisecond, started and stopped manually or by light gates.
Frequently Asked Questions
What GM tube voltage does the Scaler Timer supply?
It supplies 300 V to 500 V to the GM tube, and a press-to-read switch lets you read the applied voltage accurately.
Can the Scaler Timer be started and stopped by light gates?
Yes. Timing can be controlled by the manual start/stop switch or by one or more light gates.
Related Physics Lab Equipment
See the full physics lab equipment range, or these related radioactivity apparatus:
- Geiger Muller Tube Holder
- Protactinium Generator
- Sealed Radioactive Source, Americium
- Sealed Radioactive Source, Cobalt
For a quotation on the Scaler Timer, contact JLab India on +91-8569909696.
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