The SP 200 is a digital voltmeter produced by Lascar Electronics. It has a measurement range of 200mV and supports auto-zero and auto-polarity. It can measure AC signals referenced to the module's power supply GND. The module is designed with a low cost, making it suitable for high and low volume applications.
The SP200 module provides a 200 mV d.c. measurement range with auto‑zero, auto‑polarity and selectable decimal points. It includes LED backlighting for low‑light readability, a negative rail generator for measuring signals referenced to its own ground, and a splash‑proof housing with a fixing clip for easy panel mounting.
The manual lists electrical specifications such as 0.7 % accuracy, 2.5 samples/sec rate, and supply requirements of 3.5‑5.5 V at 350 mA. It also covers safety compliance with the Low Voltage Directive and BS EN 61010, provides pin functions, wiring diagrams, and scaling options for different voltage ranges.
| Full Scale Reading | 200 mV d.c. |
|---|---|
| Accuracy | 0.7 % (1 count) |
| Linearity | 1 count |
| Sample Rate | 2.5 samples/sec |
| Operating Temperature Range | 0‑50 °C |
| Temperature Stability | 100 ppm/°C |
| Supply Voltage | 3.5‑5.5 V |
| Supply Current | 350 mA |
| Backlight Current @5 V | 40‑80 mA |
| Input Leakage Current (Vin=0 V) | 1‑10 pA |
The SP200 measures up to a full‑scale reading of 200 mV d.c.
The backlight is switched on by connecting the BL pin to ground.
The module operates from a supply voltage between 3.5 V and 5.5 V.