NK Instruments Pvt. Ltd. manufactures insertion paddle wheel flow rate indicators and totalizers in their 282 series. These instruments are available in panel mounted or field mounted versions, with programmable scale factors and direct readout of flow rate and totalizer values in common units. They have optional relay outputs that can operate based on the totalizer value or flow rate. Technical specifications include a 16x2 LCD display, 230V AC power supply, ±1% linearity, ±0.5% repeatability, and IP65 weatherproof rating. Similar flameproof versions are also available.