Leeds & Northrup Recorders
| recorders | controllers | parts | systems | test equipment |
| bench repair | overhaul "before & after" | transmitters | IR & optical | |
Process Instruments supports all Leeds and Northrup recorders. See the list below for models available. All recorders are built to order. Please supply a complete model number or specifications for a quotation. (For email requests please supply the model number.)
Replacement parts for all recorders are available.
 L&N 25,000 |
 L&N 100 series |
 L&N Speedomax "H" |
 L&N 165 |
 L&N "H" circular chart recorder |
 L&N model "G" |
 L&N 2500 |
 L&N 250 |
Models Available from Stock
| Model | Recorder Type | Available Styles |
| 100 | Speedomax H R Indicator | Indicator, all controls |
| 110 | Speedomax 100 Series | 1, 2, 3 pen, 4" horizontal scale |
| 116 | Speedomax 1000 | Digital multipoint |
| 120 | Speedomax 100 Series | 1, 2, 3 pen vertical scale |
| 130 | Speedomax 100 Series | 1, 2, 3 pen, 4" vertical scale |
| 140 | Speedomax 100 Series | 1, 2, 3 pen, 4" vertical scale |
| 150 | Speedomax 100H Series | 1, 2, 3, 4" pen horizontal scale |
| 165 | Speedomax 165 Series | 1, 2 pen and multipoint, all controls |
| 1650 | Speedomax 1650 | Digital multipoint |
| 200 | Speedomax H R Series | Circular chart recorder, all controls |
| 200 | Speedomax 200 Series | Circular chart, 1, 2, 3 pen |
| 210 | Speedomax 200 Series | Digital circular chart, all controls |
| 250 | Speedomax 250 Series | 1, 2 pen and multipoint, all controls |
| 2500 | Speedomax 2500 | Digital multipoint |
| 25000 | Speedomax 25,000 | Datalogger and accessories |
| 2700 | Trendscan 1000 Datalogger | Datalogger and accessories |
| 300 | Speedomax H Series | 1, 2 pen and multipoint, all controls |
| 400 | Centry Series | 1, 2, 3 pen vertical scale |
| 430 | Centry Series, newer style | 1, 2, 3 pen vertical scale |
| 500 | Speedomax W Series | 1 pen and multipoint, all controls |
| 50,000 | Speedomax G Series | Circular chart recorder, all controls |
| 512 | Speedomax W Multibank | Multipoint to 276 inputs |
| 540 | Speedomax W Multipoint | Compact case, to 24 point |
| 600 | Speedomax XL Series | 1, 2 pen lab recorders |
| 60,000 | Speedomax G Series | 1, 2 pen and multipoint, all controls |
| 610 | Speedomax XL Series | 1, 2 pen lab recorders |
| 620 | Speedomax XL Series | 1, 2 pen flatbed recorders |
| 683 | Speedomax XL Series | 2 pen flatbed recorders |
| 700 | Speedomax WL Series | 1, 2 pen, all alarms |
| 800 | Speedomax M1 Series | 1, 2, 3 pen, Mark 1 |
| 810 | Speedomax M2 Series | 1, 2, 3 pen, Mark 2 |
| 830 | Speedomax M3 Series | 1, 2, 3 pen, Mark 3 |
| Maxilab | Metallurgical Analyzer | Carbon analyzer |
